SVB Financial (SIVBQ) 10-Q6 Aug 212021 Q2 Quarterly reportFinancial data

Company Profile

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
Document and Entity Information - shares	Jun. 30, 2021	Jul. 31, 2021
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2021
Document Transition Report	false
Entity File Number	001-39154
Entity Registrant Name	SVB FINANCIAL GROUP
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	91-1962278
Entity Address, Address Line One	3003 Tasman Drive
Entity Address, City or Town	Santa Clara
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	95054-1191
City Area Code	408
Local Phone Number	654-7400
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		56,436,504
Entity Central Index Key	0000719739
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q2
Amendment Flag	false
Common Stock
Entity Information [Line Items]
Title of 12(b) Security	Common Stock, par value $0.001 per share
Trading Symbol	SIVB
Security Exchange Name	NASDAQ
Preferred Stock, Series A
Entity Information [Line Items]
Title of 12(b) Security	Depositary shares, each representing a 1/40th ownership interest in a share of 5.250% Fixed-Rate Non-Cumulative Perpetual Preferred Stock, Series A
Trading Symbol	SIVBP
Security Exchange Name	NASDAQ

Interim Consolidated Balance Sh

Interim Consolidated Balance Sheets - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Assets:
Cash and cash equivalents	$ 23,959	$ 17,675
Available-for-sale securities, at fair value (cost of $23,776 and $30,245, respectively)	23,876	30,913
Held-to-maturity securities, at amortized cost and net of allowance for credit losses of $5 and $0 (fair value of $60,107 and $17,217, respectively)	59,992	16,592
Non-marketable and other equity securities	1,943	1,802
Total investment securities	85,811	49,307
Loans, amortized cost	50,754	45,181
Allowance for credit losses: loans	(396)	(448)
Net loans	50,358	44,733
Premises and equipment, net of accumulated depreciation and amortization	196	176
Goodwill	143	143
Other intangible assets, net	57	61
Lease right-of-use assets	225	210
Accrued interest receivable and other assets	2,650	3,206
Total assets	163,399	115,511
Liabilities:
Noninterest-bearing demand deposits	101,259	66,519
Interest-bearing deposits	44,579	35,463
Total deposits	145,838	101,982
Short-term borrowings	34	21
Lease liabilities	277	259
Other liabilities	3,449	3,972
Long-term debt	1,834	844
Total liabilities	151,432	107,078
Commitments and contingencies (Note 13 and Note 16)
Preferred stock, shares outstanding	367,500	350,000
SVBFG stockholders’ equity:
Preferred stock, $0.001 par value, 20,000,000 shares authorized; 367,500 and 350,000 shares issued and outstanding, respectively	$ 2,064	$ 340
Common stock, $0.001 par value, 150,000,000 shares authorized; 54,530,307 shares and 51,888,463 shares issued and outstanding, respectively	0	0
Additional paid-in capital	2,755	1,585
Retained earnings	6,706	5,672
Accumulated other comprehensive income	142	623
Total SVBFG stockholders’ equity	11,667	8,220
Noncontrolling interests	300	213
Total equity	11,967	8,433
Total liabilities and total equity	$ 163,399	$ 115,511

Interim Consolidated Balance _2

Interim Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Preferred stock, par value, in usd per share	$ 0.001	$ 0.001
Preferred stock, shares authorized	20,000,000	20,000,000
Preferred stock, shares issued	367,500	350,000
Preferred stock, shares outstanding	367,500	350,000
Common stock, par value, in usd per share	$ 0.001	$ 0.001
Common stock, shares authorized	150,000,000	150,000,000
Common stock, shares, issued	54,530,307	51,888,463
Common stock, shares outstanding	54,530,307	51,888,463
Available-for-sale securities, cost	$ 23,776,000	$ 30,245,000
HTM securities	60,107,000	17,217,000
Allowance for Credit Losses	$ 5,000	$ 0

Interim Consolidated Statements

Interim Consolidated Statements of Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Interest income:
Loans	$ 472	$ 365	$ 903	$ 748
Investment securities:
Taxable	251	142	475	296
Non-taxable	24	14	45	27
Federal funds sold, securities purchased under agreements to resell and other short-term investment securities	4	3	7	20
Total interest income	751	524	1,430	1,091
Interest expense:
Deposits	12	6	22	43
Borrowings	11	5	20	11
Total interest expense	23	11	42	54
Net interest income	728	513	1,388	1,037
Provision for credit losses	35	66	54	310
Net interest income after provision for credit losses	693	447	1,334	727
Noninterest income:
Gains on investment securities, net	305	35	472	81
Gains on equity warrant assets, net	122	27	344	40
Client investment fees	15	32	35	75
Foreign exchange fees	67	36	124	84
Credit card fees	31	21	59	50
Deposit service charges	28	21	53	45
Lending related fees	18	11	34	24
Letters of credit and standby letters of credit fees	13	11	26	23
Investment banking revenue	103	142	245	188
Commissions	17	17	41	33
Other	42	16	72	27
Total noninterest income	761	369	1,505	670
Noninterest expense:
Compensation and benefits	425	320	870	575
Professional services	97	64	178	103
Premises and equipment	37	28	70	55
Net occupancy	17	19	35	37
Business development and travel	3	3	7	17
FDIC and state assessments	10	7	20	12
Merger-related charges	19	0	19	0
Other	45	39	90	80
Total noninterest expense	653	480	1,289	879
Income before income tax expense	801	336	1,550	518
Income tax expense	173	88	360	137
Net income before noncontrolling interests	628	248	1,190	381
Net income attributable to noncontrolling interests	(113)	(14)	(138)	(12)
Preferred stock dividends	(13)	(5)	(18)	(8)
Net income available to common stockholders	$ 502	$ 229	$ 1,034	$ 361
Earnings per common share—basic (dollars per share)	$ 9.23	$ 4.44	$ 19.40	$ 7
Earnings per common share—diluted (dollars per share)	$ 9.09	$ 4.42	$ 19.10	$ 6.97

Interim Consolidated Statemen_2

Interim Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Statement of Comprehensive Income [Abstract]
Net income before noncontrolling interests	$ 628	$ 248	$ 1,190	$ 381
Change in foreign currency cumulative translation gains and losses:
Foreign currency translation gains (losses)	2	0	2	(9)
Related tax (expense) benefit	(1)	0	(1)	2
Change in unrealized gains and losses on available-for-sale securities:
Unrealized holding gains (losses)	270	47	(554)	591
Related tax (expense) benefit	(75)	(13)	154	(164)
Reclassification adjustment for gains included in net income	0	0	0	(61)
Related tax expense	0	0	0	17
Cumulative-effect adjustment for unrealized losses on securities transferred from AFS to HTM	(87)	0	(78)	0
Related tax benefit	25	0	22	0
Amortization of unrealized holding net gains on securities transferred from AFS to HTM	(2)	0	(5)	(1)
Related tax expense	0	0	1	0
Change in unrealized gains and losses on cash flow hedges:
Unrealized gains	0	0	0	232
Related tax expense	0	0	0	(64)
Reclassification adjustment for gains included in net income	(16)	(16)	(31)	(18)
Related tax expense	5	4	9	5
Other comprehensive income (loss), net of tax	121	22	(481)	530
Comprehensive income	749	270	709	911
Comprehensive income attributable to noncontrolling interests	(113)	(14)	(138)	(12)
Comprehensive income attributable to SVBFG	$ 636	$ 256	$ 571	$ 899

Interim Consolidated Statemen_3

Interim Consolidated Statements of Stockholders' Equity - USD ($) $ in Millions	Total	Impact of adopting ASC 326	Common Stock	Noncumulative Preferred Stock	Preferred Stock	Preferred StockNoncumulative Preferred Stock	Common Stock	Common StockCommon Stock	Additional Paid-in Capital	Additional Paid-in CapitalCommon Stock	Retained Earnings	Retained EarningsImpact of adopting ASC 326	Accumulated Other Comprehensive Income	Total SVBFG Stockholders’ Equity	Total SVBFG Stockholders’ EquityImpact of adopting ASC 326	Total SVBFG Stockholders’ EquityCommon Stock	Total SVBFG Stockholders’ EquityNoncumulative Preferred Stock	Noncontrolling Interests
Balance (in shares) at Dec. 31, 2019							51,655,607
Balance, beginning of period, net of tax at Dec. 31, 2019	$ 6,621				$ 340		$ 0		$ 1,470		$ 4,576		$ 84	$ 6,470				$ 151
Balance, beginning of period, net of tax (Day one impact for adoption of ASC 326) at Dec. 31, 2019		$ (35)										$ (35)			$ (35)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued under employee benefit plans, net of restricted stock cancellations (in shares)							329,330
Common stock issued under employee benefit plans, net of restricted stock cancellations	14						$ 0		14					14
Net income	381													369				12
Capital calls and distributions, net	(14)																	(14)
Other comprehensive income, net of tax	530												530	530
Share-based compensation, net	39								39					39
Common stock repurchases (in shares)							(244,223)
Common stock repurchases	(60)						$ 0				(60)			(60)
Dividends on preferred stock	(8)										(8)			(8)
Balance (in shares) at Jun. 30, 2020							51,740,714
Balance, end of period, net of tax at Jun. 30, 2020	7,468				340		$ 0		1,523		4,842		614	7,319				149
Balance (in shares) at Mar. 31, 2020							51,490,342
Balance, beginning of period, net of tax at Mar. 31, 2020	7,182				340		$ 0		1,489		4,613		592	7,034				148
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued under employee benefit plans, net of restricted stock cancellations (in shares)							250,372
Common stock issued under employee benefit plans, net of restricted stock cancellations	14								14					14
Net income	248										234			234				14
Capital calls and distributions, net	(13)																	(13)
Other comprehensive income, net of tax	22												22	22
Share-based compensation, net	20								20					20
Dividends on preferred stock	(5)										(5)			(5)
Balance (in shares) at Jun. 30, 2020							51,740,714
Balance, end of period, net of tax at Jun. 30, 2020	7,468				340		$ 0		1,523		4,842		614	7,319				149
Balance (in shares) at Dec. 31, 2020							51,888,463
Balance, beginning of period, net of tax at Dec. 31, 2020	8,433				340		$ 0		1,585		5,672		623	8,220				213
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued under employee benefit plans, net of restricted stock cancellations (in shares)							341,844
Common stock issued under employee benefit plans, net of restricted stock cancellations	(3)						$ 0		(3)					(3)
Issuance of stock			$ 1,118	$ 1,724				$ 0		$ 1,118						$ 1,118	$ 1,724
Issuance of stock (in shares)						1,724,000,000		2,300,000
Net income	1,190										1,052			1,052				138
Capital calls and distributions, net	(51)																	(51)
Other comprehensive income, net of tax	(481)												(481)	(481)
Share-based compensation, net	55								55					55
Dividends on preferred stock	(18)										(18)			(18)
Balance (in shares) at Jun. 30, 2021							54,530,307
Balance, end of period, net of tax at Jun. 30, 2021	11,967				2,064		$ 0		2,755		6,706		142	11,667				300
Balance (in shares) at Mar. 31, 2021							54,001,797
Balance, beginning of period, net of tax at Mar. 31, 2021	10,121				1,079		$ 0		2,591		6,204		21	9,895				226
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued under employee benefit plans, net of restricted stock cancellations (in shares)							228,510
Common stock issued under employee benefit plans, net of restricted stock cancellations	(5)								(5)					(5)
Issuance of stock			$ 146	$ 985				$ 0		$ 146						$ 146	$ 985
Issuance of stock (in shares)						985,000,000		300,000
Net income	628										515			515				113
Capital calls and distributions, net	(39)																	(39)
Other comprehensive income, net of tax	121												121	121
Share-based compensation, net	28								28					28
Dividends on preferred stock	(13)										(13)			(13)
Balance (in shares) at Jun. 30, 2021							54,530,307
Balance, end of period, net of tax at Jun. 30, 2021	$ 11,967				$ 2,064		$ 0		$ 2,755		$ 6,706		$ 142	$ 11,667				$ 300

Interim Consolidated Statemen_4

Interim Consolidated Statements of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Cash flows from operating activities:
Net income before noncontrolling interests	$ 1,190	$ 381
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	54	310
Gains on investment securities, net	(472)	(81)
Distributions of earnings from non-marketable and other equity securities	104	49
Depreciation and amortization	61	50
Amortization of premiums and discounts on investment securities, net	166	30
Amortization of share-based compensation	55	39
Amortization of deferred loan fees	(115)	(78)
Deferred income tax expense (benefit)	33	(73)
Excess tax benefit from exercise of stock options and vesting of restricted shares	(30)	(2)
Changes in other assets and liabilities:
Accrued interest receivable and payable, net	(86)	16
Accounts receivable and payable, net	18	3
Income tax receivable and payable, net	(49)	131
Accrued compensation	(137)	(115)
Foreign exchange spot contracts, net	245	(6)
Proceeds from termination of interest rate swaps	0	228
Other, net	(309)	(99)
Net cash provided by operating activities	695	745
Cash flows from investing activities:
Purchases of AFS securities	(2,289)	(8,071)
Proceeds from sales of AFS securities	0	2,654
Proceeds from maturities and paydowns of AFS securities	2,948	1,550
Purchases of HTM securities	(42,683)	(568)
Proceeds from maturities and paydowns of HTM securities	5,104	1,544
Purchases of non-marketable and other equity securities	(75)	(119)
Proceeds from sales and distributions of capital of non-marketable and other securities	568	58
Net increase in loans	(5,573)	(3,530)
Purchases of premises and equipment	(41)	(51)
Net cash used for investing activities	(42,041)	(6,533)
Cash flows from financing activities:
Net increase in deposits	43,856	12,748
Net increase in short-term borrowings	13	34
Proceeds from issuance of long-term debt	990	495
(Distributions to noncontrolling interests), net of contributions from noncontrolling interests	(51)	(14)
Net proceeds from the issuance of preferred stock	1,724	0
Payment of preferred stock dividend	(17)	(8)
Common stock repurchases	0	(60)
Proceeds from issuance of common stock, ESPP and ESOP, net of restricted stock awards	1,115	13
Net cash provided by financing activities	47,630	13,208
Net increase in cash and cash equivalents	6,284	7,420
Cash and cash equivalents at beginning of period	17,675	6,782
Cash and cash equivalents at end of period	23,959	14,202
Cash paid during the period for:
Interest	31	67
Income taxes	370	58
Noncash items during the period:
Changes in unrealized gains and losses on AFS securities, net of tax	(400)	383
Distributions of stock from investments	43	11
Transfers from AFS securities to HTM	5,766	0
Equity warrant assets
Changes in fair values of derivatives, net	(40)	21
Derivative
Changes in fair values of derivatives, net	$ 7	$ (59)

Basis of Presentation

Basis of Presentation	6 Months Ended
Basis of Presentation	Jun. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation SVB Financial Group is a diversified financial services company, as well as a bank holding company and a financial holding company. SVB Financial was incorporated in the state of Delaware in March 1999. Through our various subsidiaries and divisions, we offer a diverse set of banking and financial products and services to support our clients of all sizes and stages throughout their life cycles. In these notes to our unaudited interim consolidated financial statements, when we refer to “SVB Financial Group,” “SVBFG," the “Company,” “we,” “our,” “us” or use similar words, we mean SVB Financial Group and all of its subsidiaries collectively, including Silicon Valley Bank (the “Bank”), unless the context requires otherwise. When we refer to “SVB Financial” or the “Parent” we are referring only to the parent company, SVB Financial Group (not including subsidiaries). The accompanying unaudited interim consolidated financial statements reflect all adjustments of a normal and recurring nature that are, in the opinion of management, necessary to fairly present our financial position, results of operations and cash flows in accordance with GAAP. Such unaudited interim consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q pursuant to the rules and regulations of the SEC. Certain information and footnote disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. The results of operations for the three and six months ended June 30, 2021 are not necessarily indicative of results to be expected for any future periods. These unaudited interim consolidated financial statements should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2020 (“2020 Form 10-K”). Use of Estimates and Assumptions The preparation of unaudited interim consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Estimates may change as new information is obtained. Items that are subject to such estimates include: 1) measurements of fair value, the valuation of non-marketable and other equity securities and the valuation of equity warrant assets, 2) income taxes and 3) the adequacy of the ACL for loans and for unfunded credit commitments. Principles of Consolidation and Presentation Our unaudited interim consolidated financial statements include the accounts of SVB Financial Group and consolidated entities. We consolidate voting entities in which we have control through voting interests or entities through which we have a controlling financial interest in a VIE. We determine whether we have a controlling financial interest in a VIE by determining if we have: (a) the power to direct the activities of the VIE that most significantly impact the entity’s economic performance, (b) the obligation to absorb the expected losses or (c) the right to receive the expected returns of the entity. Generally, we have significant variable interests if our commitments to a limited partnership investment represent a significant amount of the total commitments to the entity. We also evaluate the impact of related parties on our determination of variable interests in our consolidation conclusions. We consolidate VIEs in which we are the primary beneficiary based on a controlling financial interest. If we are not the primary beneficiary of a VIE, we record our pro-rata interests based on our ownership percentage. VIEs are entities where investors lack sufficient equity at risk for the entity to finance its activities without additional subordinated financial support or equity investors, as a group, lack one of the following characteristics: (a) the power to direct the activities that most significantly impact the entity’s economic performance, (b) the obligation to absorb the expected losses of the entity or (c) the right to receive the expected returns of the entity. We assess VIEs to determine if we are the primary beneficiary of a VIE. A primary beneficiary is defined as a variable interest holder that has a controlling financial interest. A controlling financial interest requires both: (a) the power to direct the activities that most significantly impact the VIE’s economic performance and (b) obligation to absorb losses or receive benefits of a VIE that could potentially be significant to a VIE. Under this analysis, we also evaluate kick-out rights and other participating rights, which could provide us a controlling financial interest. The primary beneficiary of a VIE is required to consolidate the VIE. We also evaluate fees paid to managers of our limited partnership investments. We exclude those fee arrangements that are not deemed to be variable interests from the analysis of our interests in our investments in VIEs and the determination of a primary beneficiary, if any. Fee arrangements based on terms that are customary and commensurate with the services provided are deemed not to be variable interests and are, therefore, excluded. All significant intercompany accounts and transactions with consolidated entities have been eliminated. We have not provided financial or other support during the periods presented to any VIE that we were not previously contractually required to provide. Reclassifications Certain prior period amounts primarily related to presentation changes to our table summarizing the activity relating to our ACL for loans and the consolidation of certain line items in our Consolidated Statement of Stockholders' Equity (unaudited), have been reclassified to conform to current period presentation. Summary of Significant Accounting Policies The accompanying unaudited interim consolidated financial statements have been prepared on a consistent basis with the accounting policies described in Consolidated Financial Statements and Supplementary Data — Note 2 — “Summary of Significant Accounting Policies” under Part II, Item 8 of our 2020 Form 10-K. Adoption of New Accounting Standards In December 2019, the FASB issued ASU No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes (ASU 2019-12), which is part of the FASB’s initiative to reduce cost and complexity related to accounting for income taxes. ASU 2019-12 eliminates certain exceptions to the general principles of ASC 740, Income Taxes, and simplifies income tax accounting in several areas. We adopted the guidance on January 1, 2021, on a modified retrospective basis. The adoption did not have a material impact on our financial position, results of operations, cash flows or disclosures.

Stockholders' Equity and EPS

Stockholders' Equity and EPS	6 Months Ended
Stockholders' Equity and EPS	Jun. 30, 2021
Equity and Earnings Per Share [Abstract]
Stockholders' Equity and EPS	Stockholders' Equity and EPS AOCI The following table summarizes the items reclassified out of AOCI into the Consolidated Statements of Income (unaudited) for the three and six months ended June 30, 2021 and 2020: Three months ended June 30, Six months ended June 30, (Dollars in millions) Income Statement Location 2021 2020 2021 2020 Reclassification adjustment for gains on AFS securities included in net income Gains on investment securities, net $ — $ — $ — $ (61) Related tax expense Income tax expense — — — 17 Reclassification adjustment for gains on cash flow hedges included in net income Net interest income (16) (16) (31) (18) Related tax expense Income tax expense 5 4 9 5 Total reclassification adjustment for gains included in net income, net of tax $ (11) $ (12) $ (22) $ (57) The table below summarizes the activity relating to net gains and losses on our cash flow hedges included in AOCI for the three and six months ended June 30, 2021 and 2020. Refer to Note 9 — “Derivative Financial Instruments” for additional information regarding the termination of our cash flow hedges during the quarter ended March 31, 2020. Over the next 12 months, we expect that approximately $61 million in AOCI at June 30, 2021, related to unrealized gains will be reclassified out of AOCI and recognized in net income. Three months ended June 30, Six months ended June 30, (Dollars in millions) 2021 2020 2021 2020 Balance, beginning of period, net of tax $ 118 $ 164 $ 129 $ (2) Net increase in fair value, net of tax — — — 168 Net realized gain reclassified to net income, net of tax (11) (11) (22) (13) Balance, end of period, net of tax $ 107 $ 153 $ 107 $ 153 EPS Basic EPS is the amount of earnings available to each share of common stock outstanding during the reporting period. Diluted EPS is the amount of earnings available to each share of common stock outstanding during the reporting period adjusted to include the effect of potentially dilutive common shares. Potentially dilutive common shares include incremental shares issuable for stock options and restricted stock unit awards outstanding under our 2006 Equity Incentive Plan and our ESPP. Potentially dilutive common shares are excluded from the computation of dilutive EPS in periods in which the effect would be antidilutive. The following is a reconciliation of basic EPS to diluted EPS for the three and six months ended June 30, 2021 and 2020: Three months ended June 30, Six months ended June 30, (Dollars in millions except per share amounts, shares in thousands) 2021 2020 2021 2020 Numerator: Net income available to common stockholders $ 502 $ 229 $ 1,034 $ 361 Denominator: Weighted average common shares outstanding—basic 54,353 51,581 53,272 51,573 Weighted average effect of dilutive securities: Stock options and ESPP 272 114 274 140 Restricted stock units and awards 527 100 569 135 Weighted average common shares outstanding—diluted 55,152 51,795 54,115 51,848 Earnings per common share: Basic $ 9.23 $ 4.44 $ 19.40 $ 7.00 Diluted 9.09 4.42 19.10 6.97 The following table summarizes the weighted-average common shares excluded from the diluted EPS calculation due to the antidilutive effect for the three and six months ended June 30, 2021 and 2020: Three months ended June 30, Six months ended June 30, (Shares in thousands) 2021 2020 2021 2020 Stock options 36 288 18 247 Restricted stock units — 312 44 310 Total 36 600 62 557 Common Stock On March 22, 2021, to support the continued growth of our balance sheet, we issued and sold 2,000,000 shares of common stock at a price of $500.00 per share. We received net proceeds of $972 million after deducting underwriting discounts and commissions. On April 14, 2021, the Company issued and sold 300,000 additional shares of common stock under the full exercise of the underwriters' over-allotment option from our March 22, 2021 underwritten public offering. We received additional net proceeds of $146 million after deducting underwriting discounts and commissions. Preferred Stock On December 9, 2019, the Company issued 5.25% Non-Cumulative Perpetual Series A Preferred Stock (''Series A Preferred Stock''). The public offering consists of 14,000,000 depositary shares, each representing a 1/40th ownership interest in a shares of the Series A preferred stock with $0.001 par value and liquidation preference of $1,000 per share, or $25 per depositary share. The Series A Preferred Stock is redeemable at the Company’s option, subject to all applicable regulatory approvals, on or after February 15, 2025. On February 2, 2021, the Company issued 4.10% Non-Cumulative Perpetual Series B Preferred Stock (''Series B Preferred Stock''). The public offering consists of 750,000 depositary shares, each representing a 1/100th ownership interest in shares of Series B Preferred Stock with $0.001 par value and liquidation preferences of $100,000 per share, or $1,000 per depositary share. Dividends, if approved and declared by the Board of Directors, are payable quarterly, in arrears, at a rate per annum equal to (i) 4.10 percent from the original issue date to, but excluding, February 15, 2031 and (ii) for the February 15, 2031 dividend date and during each subsequent ten year period, the ten-year treasury rate (calculated three On May 13, 2021, the Company issued 4.00% Non-Cumulative Perpetual Series C Preferred Stock (''Series C Preferred Stock''). The public offering consists of 1,000,000 depositary shares, each representing a 1/100th ownership interest in shares of Series C Preferred Stock with $0.001 par value and liquidation preferences of $100,000 per share, or $1,000 per depositary share. Dividends, if approved and declared by the Board of Directors, are payable quarterly, in arrears, at a rate per annum equal to (i) 4.000 percent from the original issue date to, but excluding, May 15, 2026, and (ii) for the May 15, 2026 dividend date and during each subsequent five years period, the five-year treasury rate (calculated three The following table summarizes our preferred stock at June 30, 2021: Series Description Amount outstanding (in millions) Carrying value Shares issued and outstanding Par Value Ownership interest per depositary share Liquidation preference per depositary share 2021 dividends paid per depositary share Series A 5.250% Fixed-Rate Non-Cumulative Perpetual Preferred Stock $ 350 $ 340 350,000 $ 0.001 1/40 th $ 25 $ 0.66 Series B 4.100% Fixed-Rate Non-Cumulative Perpetual Preferred Stock 750 739 7,500 0.001 1/100 th 1,000 1.17 Series C 4.000% Fixed-Rate Non-Cumulative Perpetual Preferred Stock 1,000 985 10,000 0.001 1/100 th 1,000 — Consolidated Statement of Changes in Equity The following table summarizes the changes in our consolidated equity for the three months ended June 30, 2021 and 2020: Preferred Common Stock Additional Retained Accumulated Total SVBFG Noncontrolling Interests Total (Dollars in millions, except share data) Shares Amount Balance at March 31, 2020 $ 340 51,490,342 $ — $ 1,489 $ 4,613 $ 592 $ 7,034 $ 148 $ 7,182 Common stock issued under employee benefit plans and ESOP, net of restricted stock cancellations — 250,372 — 14 — — 14 — 14 Net income — — — — 234 — 234 14 248 Capital calls and distributions, net — — — — — — — (13) (13) Other comprehensive income, net of tax — — — — — 22 22 — 22 Share-based compensation, net — — — 20 — — 20 — 20 Dividends on preferred stock — — — — (5) — (5) — (5) Balance at June 30, 2020 $ 340 51,740,714 $ — $ 1,523 $ 4,842 $ 614 $ 7,319 $ 149 $ 7,468 Balance at March 31, 2021 $ 1,079 54,001,797 $ — $ 2,591 $ 6,204 $ 21 $ 9,895 $ 226 $ 10,121 Common stock issued under employee benefit plans and ESOP, net of restricted stock cancellations — 228,510 — (5) — — (5) — (5) Issuance of Common Stock — 300,000 — 146 — — 146 — 146 Issuance of Preferred Stock 985 — — — — — 985 — 985 Net income — — — — 515 — 515 113 628 Capital calls and distributions, net — — — — — — — (39) (39) Other comprehensive income, net of tax — — — — — 121 121 — 121 Share-based compensation, net — — — 28 — — 28 — 28 Dividends on preferred stock — — — — (13) — (13) — (13) Other, net — — — (5) — — (5) — (5) Balance at June 30, 2021 $ 2,064 54,530,307 $ — $ 2,755 $ 6,706 $ 142 $ 11,667 $ 300 $ 11,967

Variable Interest Entities

Variable Interest Entities	6 Months Ended
Variable Interest Entities	Jun. 30, 2021
Investments In Variable Interest Entities [Abstract]
Variable Interest Entities	Variable Interest Entities Our involvement with VIEs includes our investments in venture capital and private equity funds, debt funds, private and public portfolio companies and qualified affordable housing projects. The following table presents the carrying amounts and classification of significant variable interests in consolidated and unconsolidated VIEs as of June 30, 2021 and December 31, 2020: (Dollars in millions) Consolidated VIEs Unconsolidated VIEs Maximum Exposure to Loss in Unconsolidated VIEs June 30, 2021: Assets: Cash and cash equivalents $ 13 $ — $ — Non-marketable and other equity securities (1) 618 955 955 Accrued interest receivable and other assets 24 — — Total assets $ 655 $ 955 $ 955 Liabilities: Other liabilities (1) 14 415 — Total liabilities $ 14 $ 415 $ — December 31, 2020: Assets: Cash and cash equivalents $ 15 $ — $ — Non-marketable and other equity securities (1) 422 859 859 Accrued interest receivable and other assets 1 — — Total assets $ 438 $ 859 $ 859 Liabilities: Other liabilities (1) 1 370 — Total liabilities $ 1 $ 370 $ — (1) Included in our unconsolidated non-marketable and other equity securities portfolio at June 30, 2021 and December 31, 2020 are investments in qualified affordable housing projects of $696 million and $616 million, respectively, and related other liabilities consisting of unfunded commitments of $415 million and $370 million, respectively. Non-marketable and other equity securities Our non-marketable and other equity securities portfolio primarily represents investments in venture capital and private equity funds, SPD-SVB, debt funds, private and public portfolio companies and qualified affordable housing projects. Many of these are investments held by SVB Financial in third-party funds in which we do not have controlling or significant variable interests. These investments represent our unconsolidated VIEs in the table above. Our non-marketable and other equity securities portfolio also includes investments from SVB Capital. SVB Capital is the funds management business of SVB Financial Group, which focuses primarily on venture capital investments. The SVB Capital family of funds is comprised of direct venture funds that invest in companies and funds of funds that invest in other venture capital funds. We have a controlling and significant variable interest in three of these SVB Capital funds and consolidate these funds for financial reporting purposes. All investments are generally nonredeemable, and distributions are expected to be received through the liquidation of the underlying investments throughout the life of the investment fund. Investments may only be sold or transferred subject to the notice and approval provisions of the underlying investment agreement. Subject to applicable regulatory requirements, including the Volcker Rule, we also make commitments to invest in venture capital and private equity funds. For additional details, see Note 13 — “Off-Balance Sheet Arrangements, Guarantees and Other Commitments.” The Bank also has variable interests in low income housing tax credit funds, in connection with fulfilling its responsibilities under the CRA, that are designed to generate a return primarily through the realization of federal tax credits. These investments are typically limited partnerships in which the general partner, other than the Bank, holds the power over significant activities of the VIE; therefore, these investments are not consolidated. For additional information on our investments in qualified affordable housing projects, see Note 5 — “Investment Securities."

Cash and Cash Equivalents

Cash and Cash Equivalents	6 Months Ended
Cash and Cash Equivalents	Jun. 30, 2021
Cash and Cash Equivalents [Abstract]
Cash and Cash Equivalents	Cash and Cash Equivalents The following table details our cash and cash equivalents at June 30, 2021 and December 31, 2020: (Dollars in millions) June 30, 2021 December 31, 2020 Cash and due from banks (1) $ 23,197 $ 17,448 Securities purchased under agreements to resell (2) 762 227 Total cash and cash equivalents $ 23,959 $ 17,675 (1) At June 30, 2021 and December 31, 2020, $16.4 billion and $13.7 billion, respectively, of our cash and due from banks was deposited at the Federal Reserve Bank and was earning interest at the Federal Funds target rate, and interest-earning deposits in other financial institutions were $5.8 billion and $3.0 billion, respectively. (2) At June 30, 2021 and December 31, 2020, securities purchased und er agreements to resell were collateralized by U.S. Treasury securities and U.S. agency securities with aggregate fair value s of $777 million a n d $232 million, respectively. None of these securities were sold or repledged as of June 30, 2021 and December 31, 2020.

Investment Securities

Investment Securities	6 Months Ended
Investment Securities	Jun. 30, 2021
Investments, Debt and Equity Securities [Abstract]
Investment Securities	Investment Securities Our investment securities portfolio consists of: (i) an AFS securities portfolio and a HTM securities portfolio, both of which represent interest-earning investment securities, and (ii) a non-marketable and other equity securities portfolio, which primarily represents investments managed as part of our funds management business, investments in qualified affordable housing projects, as well as public equity securities held as a result of equity warrant assets exercised. AFS Securities The major components of our AFS investment securities portfolio at June 30, 2021 and December 31, 2020 are as follows: June 30, 2021 (Dollars in millions) Amortized Unrealized Unrealized Carrying AFS securities, at fair value: U.S. Treasury securities $ 6,051 $ 189 $ (5) $ 6,235 U.S. agency debentures 84 — (3) 81 Foreign government debt securities 15 — — 15 Residential MBS: Agency-issued MBS 11,606 80 (124) 11,562 Agency-issued CMO—fixed rate 4,497 17 (90) 4,424 Agency-issued CMBS 1,523 44 (8) 1,559 Total AFS securities $ 23,776 $ 330 $ (230) $ 23,876 December 31, 2020 (Dollars in millions) Amortized Unrealized Unrealized Carrying AFS securities, at fair value: U.S. Treasury securities $ 4,198 $ 272 $ — $ 4,470 U.S. agency debentures 234 4 (1) 237 Foreign government debt securities 24 — — 24 Residential MBS: Agency-issued MBS 13,271 233 (1) 13,503 Agency-issued CMO—fixed rate 8,077 40 (10) 8,107 Agency-issued CMBS 4,441 134 (3) 4,572 Total AFS securities $ 30,245 $ 683 $ (15) $ 30,913 The following table summarizes sale activity of AFS securities during the three and six months ended June 30, 2021 and 2020 as recorded in the line item “Gains on investment securities, net," a component of noninterest income: For the three and six months ended June 30, 2021 and three months ended June 30, 2020 we did not have any sales proceeds, gross unrealized gains, or gross unrealized losses from our AFS securities portfolio. Three months ended June 30, Six months ended June 30, (Dollars in millions) 2021 2020 2021 2020 Sales proceeds $ — $ — $ — $ 2,654 Net realized gains and losses: Gross realized gains $ — $ — $ — $ 61 Gross realized losses — — — — Net realized gains $ — $ — $ — $ 61 The following tables summarize our AFS securities in an unrealized loss position for which an ACL has not been recorded and summarized into categories of less than 12 months, or 12 months or longer, as of June 30, 2021 and December 31, 2020: June 30, 2021 Less than 12 months 12 months or longer (1) Total (Dollars in millions) Fair Value of Unrealized Fair Value of Unrealized Fair Value of Unrealized AFS securities: U.S. Treasury securities $ 2,218 $ (5) $ — $ — $ 2,218 $ (5) U.S. agency debentures 81 (3) — — 81 (3) Residential MBS: Agency-issued MBS 8,268 (124) — — 8,268 (124) Agency-issued CMO —fixed rate 2,832 (89) 76 (1) 2,908 (90) Agency-issued CMBS 651 (8) — — 651 (8) Total AFS securities (1) $ 14,050 $ (229) $ 76 $ (1) $ 14,126 $ (230) (1) As of June 30, 2021, we identified a total of 344 investments that were in unrealized loss positions with 2 investments in an unrealized loss position for a period of time greater than 12 months. Based on our analysis of the securities in an unrealized loss position as of June 30, 2021, the decline in value is unrelated to credit loss and is related to changes in market interest rates since purchase and therefore changes in value for securities are included in other comprehensive income. Market valuations and credit loss analyses on assets in the AFS securities portfolio are reviewed and monitored on a quarterly basis. As of June 30, 2021, we do not intend to sell any of our securities in an unrealized loss position prior to recovery of our amortized cost basis, and it is more likely than not that we will not be required to sell any of our securities prior to recovery of our amortized cost basis. None of the investments in our AFS securities portfolio were past due as of June 30, 2021. December 31, 2020 Less than 12 months 12 months or longer Total (Dollars in millions) Fair Value of Unrealized Fair Value of Unrealized Fair Value of Unrealized AFS securities: U.S. Treasury securities (1) $ 60 $ — $ — $ — $ 60 $ — U.S. agency debentures 133 (1) — — 133 (1) Residential MBS: Agency-issued MBS 904 (1) — — 904 (1) Agency-issued CMO—fixed rate 2,199 (10) — — 2,199 (10) Agency-issued CMBS 989 (3) — — 989 (3) Total AFS securities (2) $ 4,285 $ (15) $ — $ — $ 4,285 $ (15) (1) At December 31, 2020, gross unrealized losses totaled less than $1 million for U.S. Treasury AFS securities with a loss duration of less than less than 12 months. (2) As of December 31, 2020, we identified a total of 93 investments that were in unrealized loss positions, of which no investments are in an unrealized loss position for a period of time greater than 12 months. None of the investments in our AFS securities portfolio were past due as of December 31, 2020. The following table summarizes the fixed income securities, carried at fair value, classified as AFS as of June 30, 2021 by the remaining contractual principal maturities. For U.S. Treasury securities, U.S. agency debentures and foreign government debt securities, the expected maturity is the actual contractual maturity of the notes. Expected maturities for MBS may differ significantly from their contractual maturities because mortgage borrowers have the right to prepay outstanding loan obligations with or without penalties. MBS classified as AFS typically have original contractual maturities from 10 to 30 years whereas expected average lives of these securities tend to be significantly shorter and vary based upon structure and prepayments in lower interest rate environments. June 30, 2021 (Dollars in millions) Total One Year After One After Five After U.S. Treasury securities $ 6,235 $ 41 $ 6,037 $ 157 $ — U.S. agency debentures 81 — — 81 — Foreign government debt securities 15 15 — — — Residential MBS: Agency-issued MBS 11,562 — — — 11,562 Agency-issued CMO—fixed rate 4,424 — — — 4,424 Agency-issued CMBS 1,559 — — 1,559 — Total $ 23,876 $ 56 $ 6,037 $ 1,797 $ 15,986 HTM Securities During the second quarter of 2021, we re-designated certain securities from the classification of AFS to HTM. The securities re-designated consisted of agency-issued CMBS with a total carrying value of $5.7 billion at June 30, 2021 . At the time of re-designation the securities included $78 million of pretax net unrealized loss in other comprehensive income and are being amortized over the life of the securities in a manner consistent with the amortization of a premium or discount. Our decision to re-designate the securities was based on our ability and intent to hold these securities to maturity. Factors used in assessing the ability to hold these securities to maturity were future liquidity needs and sources of funding. HTM securities are carried on the balance sheet at amortized cost and the changes in the value of these securities, other than an ACL, are not reported on the financial statements. The components of our HTM investment securities portfolio at June 30, 2021 and December 31, 2020 are as follows: June 30, 2021 (Dollars in millions) Amortized Unrealized Unrealized Fair Value ACL HTM securities, at cost: U.S. agency debentures (1) $ 552 $ 19 $ — $ 571 $ — Residential MBS: Agency-issued MBS 36,724 194 (302) 36,616 — Agency-issued CMO—fixed rate 4,474 29 (23) 4,480 — Agency-issued CMO—variable rate 117 1 — 118 — Agency-issued CMBS 12,492 76 (61) 12,507 — Municipal bonds and notes 5,265 189 (16) 5,438 — Corporate bonds 373 4 — 377 5 Total HTM securities $ 59,997 $ 512 $ (402) $ 60,107 $ 5 (1) Consists of pools of Small Business Investment Company debentures issued and guaranteed by the U.S. Small Business Administration, an independent agency of the United States. December 31, 2020 (Dollars in millions) Amortized Unrealized Unrealized Fair Value ACL HTM securities, at amortized cost: U.S. agency debentures (1) $ 402 $ 19 $ — $ 421 $ — Residential MBS: Agency-issued MBS 7,740 240 (2) 7,978 — Agency-issued CMO—fixed rate 1,735 23 — 1,758 — Agency-issued CMO—variable rate 137 1 — 138 — Agency-issued CMBS 2,943 124 — 3,067 — Municipal bonds and notes 3,635 221 (1) 3,855 — Total HTM securities $ 16,592 $ 628 $ (3) $ 17,217 $ — (1) Consists of pools of Small Business Investment Company debentures issued and guaranteed by the U.S. Small Business Administration, an independent agency of the United States. Allowance for Credit Losses for HTM Securities For HTM securities, the three months ended June 30, 2021 had a beginning ACL balance of $1 million, a provision for credit losses of $4 million, and an ending ACL balance of $5 million. For HTM securities, the six months ended June 30, 2021 had a beginning ACL balance of less than $1 million, a provision for credit losses of $5 million and an ending ACL balance of $5 million. For the three and six months ended June 30, 2020, the beginning ACL balance, the day one impact of adopting ASC 326, the provision for credit losses and the ending balance of ACL for HTM securities, in each case, were all less than $1 million. AIR from HTM securities totaled $144 million at June 30, 2021 and $55 million at December 31, 2020 and is reported in "Accrued interest receivable and other assets" in our unaudited interim consolidated balance sheets. Credit Quality Indicators On a quarterly basis, management monitors the credit quality for HTM securities through the use of standard credit ratings. The following table summarizes our amortized cost of HTM securities aggregated by credit quality indicator at June 30, 2021 and December 31, 2020: (Dollars in millions) June 30, 2021 December 31, 2020 Municipal bonds and notes: Aaa $ 2,680 $ 2,070 Aa1 1,619 1,145 Aa2 802 420 Aa3 152 — A1 12 — Total municipal bonds and notes $ 5,265 $ 3,635 Corporate bonds: Aa1 $ 10 $ — Aa2 28 — Aa3 24 — A1 158 — A2 153 — Total corporate bonds $ 373 $ — The following table summarizes the remaining contractual principal maturities on fixed income investment securities classified as HTM as of June 30, 2021. For U.S. agency debentures, the expected maturity is the actual contractual maturity of the notes. Expected remaining maturities for certain U.S. agency debentures may occur earlier than their contractual maturities because the note issuers have the right to call outstanding amounts ahead of their contractual maturity. Expected maturities for MBS may differ significantly from their contractual maturities because mortgage borrowers have the right to prepay outstanding loan obligations with or without penalties. MBS classified as HTM typically have original contractual maturities from 10 to 30 years whereas expected average lives of these securities tend to be significantly shorter and vary based upon structure and prepayments in lower interest rate environments; however, we expect to collect substantially all of the recorded investment on these securities. June 30, 2021 Total One Year After One Year to After Five Years to After (Dollars in millions) Amortized Cost Fair Value Amortized Cost Fair Value Amortized Cost Fair Value Amortized Cost Fair Value Amortized Cost Fair Value U.S. agency debentures $ 552 $ 571 $ 4 $ 4 $ 141 $ 146 $ 407 $ 421 $ — $ — Residential MBS: Agency-issued MBS 36,724 36,616 3 4 9 9 449 465 36,263 36,138 Agency-issued CMO — fixed rate 4,474 4,480 — — 5 5 404 413 4,065 4,062 Agency-issued CMO — variable rate 117 118 — — — — — — 117 118 Agency-issued CMBS 12,492 12,507 — — — — 535 554 11,957 11,953 Municipal bonds and notes 5,265 5,438 61 61 113 118 833 881 4,258 4,378 Corporate bonds 373 377 — — — — 373 377 — — Total $ 59,997 $ 60,107 $ 68 $ 69 $ 268 $ 278 $ 3,001 $ 3,111 $ 56,660 $ 56,649 Non-marketable and Other Equity Securities The major components of our non-marketable and other equity securities portfolio at June 30, 2021 and December 31, 2020 are as follows: (Dollars in millions) June 30, 2021 December 31, 2020 Non-marketable and other equity securities: Non-marketable securities (fair value accounting): Consolidated venture capital and private equity fund investments (1) $ 108 $ 89 Unconsolidated venture capital and private equity fund investments (2) 187 185 Other investments without a readily determinable fair value (3) 79 61 Other equity securities in public companies (fair value accounting) (4) 107 281 Non-marketable securities (equity method accounting) (5): Venture capital and private equity fund investments 544 362 Debt funds 7 5 Other investments 215 203 Investments in qualified affordable housing projects, net (6) 696 616 Total non-marketable and other equity securities $ 1,943 $ 1,802 (1) The following table shows the amounts of venture capital and private equity fund investments held by the following consolidated funds and our ownership percentage of each fund at June 30, 2021 and December 31, 2020 (fair value accounting): June 30, 2021 December 31, 2020 (Dollars in millions) Amount Ownership % Amount Ownership % Strategic Investors Fund, LP $ 5 12.6 % $ 5 12.6 % Capital Preferred Return Fund, LP 51 20.0 50 20.0 Growth Partners, LP 52 33.0 34 33.0 Total consolidated venture capital and private equity fund investments $ 108 $ 89 (2) The carrying value represents investments in 157 and 162 funds (primarily venture capital funds) at June 30, 2021 and December 31, 2020, respectively, where our ownership interest is typically less than 5% of the voting interests of each such fund and in which we do not have the ability to exercise significant influence over the partnerships operating activities and financial policies. We carry our unconsolidated venture capital and private equity fund investments at fair value based on the fund investments' net asset values per share as obtained from the general partners of the investments. For each fund investment, we adjust the net asset value per share for differences between our measurement date and the date of the fund investment’s net asset value by using the most recently available financial information from the investee general partner, for example March 31 st for our June 30 th consolidated financial statements, adjusted for any contributions paid, distributions received from the investment, and significant fund transactions or market events during the reporting period. (3) These investments include direct equity investments in private companies. The carrying value is based on the price at which the investment was acquired plus or minus changes resulting from observable price changes in orderly transactions for identical or similar investments. We consider a range of factors when adjusting the fair value of these investments, including, but not limited to, the term and nature of the investment, local market conditions, values for comparable securities, current and projected operating performance, exit strategies, financing transactions subsequent to the acquisition of the investment and a discount for certain investments that have lock-up restrictions or other features that indicate a discount to fair value is warranted. The following table shows the changes to the carrying amount of other investments without a readily determinable fair value for the six months ended June 30, 2021: (Dollars in millions) Six months ended June 30, 2021 Cumulative Adjustments Measurement alternative: Carrying value at June 30, 2021 $ 79 Carrying value adjustments: Impairment $ — $ (1) Upward changes for observable prices 12 16 Downward changes for observable prices (2) (6) (4) Investments classified as other equity securities (fair value accounting) represent shares held in public companies as a result of exercising public equity warrant assets and direct equity investments in public companies held by our consolidated funds. Changes in equity securities measured at fair value are recognized through net income. (5) The following table shows the carrying value and our ownership percentage of each investment at June 30, 2021 and December 31, 2020 (equity method accounting): June 30, 2021 December 31, 2020 (Dollars in millions) Amount Ownership % Amount Ownership % Venture capital and private equity fund investments: Strategic Investors Fund II, LP $ 4 8.6 % $ 4 8.6 % Strategic Investors Fund III, LP 28 5.9 16 5.9 Strategic Investors Fund IV, LP 36 5.0 25 5.0 Strategic Investors Fund V funds 87 Various 67 Various CP II, LP (i) 8 5.1 8 5.1 Other venture capital and private equity fund investments 381 Various 242 Various Total venture capital and private equity fund investments $ 544 $ 362 Debt funds: Gold Hill Capital 2008, LP (ii) $ 5 15.5 % $ 4 15.5 % Other debt funds 2 Various 1 Various Total debt funds $ 7 $ 5 Other investments: SPD Silicon Valley Bank Co., Ltd. $ 115 50.0 % $ 115 50.0 % Other investments 100 Various 88 Various Total other investments $ 215 $ 203 (i) Our ownership includes direct ownership interest of 1.3 percent and indirect ownership interest of 3.8 percent through our investments in Strategic Investors Fund II, LP. (ii) Our ownership includes direct ownership interest of 11.5 percent in the fund and an indirect interest in the fund through our investment in Gold Hill Capital 2008, LLC of 4.0 percent. (6) The following table presents the balances of our investments in qualified affordable housing projects and related unfunded commitments included as a component of “Other liabilities” on our consolidated balance sheets at June 30, 2021 and December 31, 2020: (Dollars in millions) June 30, 2021 December 31, 2020 Investments in qualified affordable housing projects, net $ 696 $ 616 Other liabilities 415 370 The following table presents other information relating to our investments in qualified affordable housing projects for the three months ended June 30, 2021 and 2020: Three months ended June 30, Six months ended June 30, (Dollars in millions) 2021 2020 2021 2020 Tax credits and other tax benefits recognized $ 26 $ 20 $ 54 $ 31 Amortization expense included in provision for income taxes (i) 14 10 30 22 (i) All investments are amortized using the proportional amortization method and amortization expense is included in the provision for income taxes. The following table presents the net gains and losses on non-marketable and other equity securities for the three and six months ended June 30, 2021 and 2020 as recorded in the line item “Gains on investment securities, net," a component of noninterest income: Three months ended June 30, Six months ended June 30, (Dollars in millions) June 30, 2021 June 30, 2020 June 30, 2021 June 30, 2020 Net gains (losses) on non-marketable and other equity securities: Non-marketable securities (fair value accounting): Consolidated venture capital and private equity fund investments $ 19 $ 1 $ 36 $ 4 Unconsolidated venture capital and private equity fund investments 15 (2) 32 (1) Other investments without a readily determinable fair value (1) (1) 12 (4) Other equity securities in public companies (fair value accounting) 18 13 92 6 Non-marketable securities (equity method accounting): Venture capital and private equity fund investments 250 26 295 18 Debt funds 1 — 2 — Other investments 3 (2) 3 (3) Total net gains on non-marketable and other equity securities $ 305 $ 35 $ 472 $ 20 Less: realized net gains on sales of non-marketable and other equity securities 61 — 127 — Net gains on non-marketable and other equity securities still held $ 244 $ 35 $ 345 $ 20

Loans, Allowance for Loan Losse

Loans, Allowance for Loan Losses and Allowance for Unfunded Credit Commitments	6 Months Ended
	Jun. 30, 2021
Receivables [Abstract]
Loans and Allowance for Credit Losses: Loans and Unfunded Credit Commitments	Loans and Allowance for Credit Losses: Loans and Unfunded Credit Commitments We serve a variety of commercial clients in the technology, life science/healthcare, private equity/venture capital and premium wine industries. Our technology clients generally tend to be in the industries of hardware (such as semiconductors, communications, data, storage and electronics), software/internet (such as infrastructure software, applications, software services, digital content and advertising technology) and ERI. Our life science/healthcare clients primarily tend to be in the industries of biotechnology, medical devices, healthcare information technology and healthcare services. Loans to our technology, life science/healthcare and ERI clients are reported under the Investor Dependent, Cash Flow Dependent and Balance Sheet Dependent risk-based segments below. Loans made to private equity/venture capital firm clients typically enable them to fund investments prior to their receipt of funds from capital calls and are reported under the Global Fund Banking portfolio segment below. Loans to the premium wine industry focus on vineyards and wineries that produce grapes and wines of high quality. In addition to commercial loans, we make consumer loans through SVB Private Bank and provide real estate secured loans to eligible employees through our EHOP. We also provide community development loans made as part of our responsibilities under the CRA. These loans are included within “construction loans” below and are primarily secured by real estate. Additionally, beginning in April 2020, we accepted applications under the PPP administered by the SBA under the Coronavirus Aid, Relief, and Economic Security Act (the "CARES Act") and originated loans to qualified small businesses. Disbursement of PPP funds under the CARES Act originally expired on August 8, 2020, however, on December 27, 2020, the Economic Aid to Hard-Hit Small Businesses, Nonprofits, and Venues Act (the "Economic Aid Act") was enacted, which extended the application period for PPP loans up to March 31, 2021, and allowed for certain PPP borrowers to apply for second draw loans. The disbursement phase of the PPP was further extended to June 30, 2021 pursuant to the PPP Extension Act of 2021. The composition of loans at amortized cost basis broken out by risk-based segment at June 30, 2021 and December 31, 2020 is presented in the following table: (Dollars in millions) June 30, 2021 December 31, 2020 Global fund banking $ 30,630 $ 25,543 Investor dependent: Early stage 1,565 1,486 Mid stage 1,708 1,565 Later stage 2,055 1,921 Total investor dependent 5,328 4,972 Cash flow dependent: Sponsor led buyout 1,917 1,989 Other 2,926 2,945 Total cash flow dependent 4,843 4,934 Private bank (4) 5,297 4,901 Balance sheet dependent 2,804 2,191 Premium wine (4) 1,002 1,053 Other (4) 7 28 SBA loans 843 1,559 Total loans (1) (2) (3) $ 50,754 $ 45,181 ACL (396) (448) Net loans $ 50,358 $ 44,733 (1) Total loans at amortized cost is net of unearned income of $248 million and $226 million at June 30, 2021 and December 31, 2020, respectively. (2) Included within our total loan portfolio are credit card loans of $509 million and $400 million at June 30, 2021 and December 31, 2020, respectively. (3) Included within our total loan portfolio are construction loans of $84 million and $118 million at June 30, 2021 and December 31, 2020, respectively. (4) Of our total loans, the table below includes those secured by real estate at amortized cost at June 30, 2021 and December 31, 2020 and were comprised of the following: (Dollars in millions) June 30, 2021 December 31, 2020 Real estate secured loans: Private bank: Loans for personal residence $ 3,773 $ 3,392 Loans to eligible employees 447 481 Home equity lines of credit 61 43 Other 131 143 Total private bank loans secured by real estate $ 4,412 $ 4,059 Premium wine 807 824 Other 34 57 Total real estate secured loans $ 5,253 $ 4,940 Credit Quality Indicators For each individual client, we establish an internal credit risk rating for that loan, which is used for assessing and monitoring credit risk as well as performance of the loan and the overall portfolio. Our internal credit risk ratings are also used to summarize the risk of loss due to failure by an individual borrower to repay the loan. For our internal credit risk ratings, each individual loan is given a risk rating of 1 through 10. Loans risk-rated 1 through 4 are performing loans and translate to an internal rating of “Pass,” with loans risk-rated 1 being cash secured. Loans risk-rated 5 through 7 are performing loans; however, we consider them as demonstrating higher risk, which requires more frequent review of the individual exposures; these translate to an internal rating of “Criticized.” All of our nonaccrual loans are risk-rated 8 or 9 and are classified with the internal rating of "Nonperforming." Loans rated 10 are charged-off and are not included as part of our loan portfolio balance. We review our credit quality indicators on a quarterly basis for performance and appropriateness of risk ratings as part of our evaluation process for our ACL for loans. The following tables summarize the credit quality indicators, broken out by risk-based segment and vintage year, as of June 30, 2021 and December 31, 2020: Term Loans by Origination Year June 30, 2021 (Dollars in millions) 2021 2020 2019 2018 2017 Prior Revolving Loans Revolving Loans Converted to Term Loans Unallocated (1) Total Global fund banking: Risk rating: Pass $ 567 $ 165 $ 42 $ 55 $ 20 $ 7 $ 29,766 $ 1 $ — $ 30,623 Criticized — — — — — — 5 2 — 7 Nonperforming — — — — — — — — — — Total global fund banking $ 567 $ 165 $ 42 $ 55 $ 20 $ 7 $ 29,771 $ 3 $ — $ 30,630 Investor dependent: Early stage: Risk rating: Pass $ 392 $ 520 $ 237 $ 53 $ 10 $ — $ 144 $ 1 $ — $ 1,357 Criticized 8 93 51 14 2 5 24 — — 197 Nonperforming — 1 5 4 — — 1 — — 11 Total early stage $ 400 $ 614 $ 293 $ 71 $ 12 $ 5 $ 169 $ 1 $ — $ 1,565 Mid stage: Risk rating: Pass $ 505 $ 654 $ 215 $ 106 $ 16 $ 2 $ 100 $ 5 $ — $ 1,603 Criticized 8 49 9 13 3 — 18 — — 100 Nonperforming — — 2 3 — — — — — 5 Total mid stage $ 513 $ 703 $ 226 $ 122 $ 19 $ 2 $ 118 $ 5 $ — $ 1,708 Later stage: Risk rating: Pass $ 576 $ 829 $ 290 $ 63 $ 10 $ 2 $ 195 $ — $ — $ 1,965 Criticized 6 29 16 3 2 — 13 — — 69 Nonperforming — 15 — — — — 6 — — 21 Total later stage $ 582 $ 873 $ 306 $ 66 $ 12 $ 2 $ 214 $ — $ — $ 2,055 Total investor dependent $ 1,495 $ 2,190 $ 825 $ 259 $ 43 $ 9 $ 501 $ 6 $ — $ 5,328 Cash flow dependent: Sponsor led buyout: Risk rating: Pass $ 588 $ 548 $ 341 $ 141 $ 120 $ 4 $ 44 $ — $ — $ 1,786 Criticized — 14 15 40 10 13 5 — — 97 Nonperforming — — 12 10 7 — 5 — — 34 Total sponsor led buyout $ 588 $ 562 $ 368 $ 191 $ 137 $ 17 $ 54 $ — $ — $ 1,917 Other Risk rating: Pass $ 540 $ 720 $ 332 $ 137 $ 108 $ — $ 868 $ — $ — $ 2,705 Criticized — 10 35 37 — — 138 — — 220 Nonperforming — — — — — — 1 — — 1 Total other $ 540 $ 730 $ 367 $ 174 $ 108 $ — $ 1,007 $ — $ — $ 2,926 Total cash flow dependent $ 1,128 $ 1,292 $ 735 $ 365 $ 245 $ 17 $ 1,061 $ — $ — $ 4,843 Private bank: Risk rating: Pass $ 1,047 $ 1,748 $ 980 $ 321 $ 243 $ 513 $ 406 $ 1 $ — $ 5,259 Criticized — 1 8 3 4 11 4 — — 31 Nonperforming — — — 6 — 1 — — — 7 Total private bank $ 1,047 $ 1,749 $ 988 $ 330 $ 247 $ 525 $ 410 $ 1 $ — $ 5,297 Balance sheet dependent: Risk rating: Pass $ 657 $ 728 $ 130 $ 158 $ 31 $ — $ 928 $ — $ — $ 2,632 Criticized — 65 42 — — — 64 1 — 172 Nonperforming — — — — — — — — — — Total balance sheet dependent $ 657 $ 793 $ 172 $ 158 $ 31 $ — $ 992 $ 1 $ — $ 2,804 Premium wine: Risk rating: Pass $ 52 $ 128 $ 195 $ 72 $ 74 $ 210 $ 112 $ 36 $ — $ 879 Criticized 2 15 12 16 10 47 21 — — 123 Nonperforming — — — — — — — — — — Total Premium wine $ 54 $ 143 $ 207 $ 88 $ 84 $ 257 $ 133 $ 36 $ — $ 1,002 Other: Risk rating: Pass $ — $ 17 $ 13 $ — $ 1 $ — $ 3 $ — $ (27) $ 7 Criticized — — — — — — — — — — Nonperforming — — — — — — — — — — Total other $ — $ 17 $ 13 $ — $ 1 $ — $ 3 $ — $ (27) $ 7 SBA loans: Risk rating: Pass $ 401 $ 368 $ — $ — $ — $ — $ — $ — $ — $ 769 Criticized 46 28 — — — — — — — 74 Nonperforming — — — — — — — — — — Total SBA loans $ 447 $ 396 $ — $ — $ — $ — $ — $ — $ — $ 843 Total loans $ 5,395 $ 6,745 $ 2,982 $ 1,255 $ 671 $ 815 $ 32,871 $ 47 $ (27) $ 50,754 (1) These amounts consist of fees and clearing items that have not yet been allocated at the loan level. Term Loans by Origination Year December 31, 2020 (Dollars in millions) 2020 2019 2018 2017 2016 Prior Revolving Loans Revolving Loans Converted to Term Loans Total Global fund banking: Risk rating: Pass $ 440 $ 48 $ 69 $ 23 $ 2 $ 6 $ 24,947 $ 2 $ 25,537 Criticized — — — — — — — 6 6 Nonperforming — — — — — — — — — Total global fund banking $ 440 $ 48 $ 69 $ 23 $ 2 $ 6 $ 24,947 $ 8 $ 25,543 Investor dependent: Early stage: Risk rating: Pass $ 667 $ 370 $ 121 $ 32 $ 1 $ 1 $ 96 $ 1 $ 1,289 Criticized 47 73 26 10 4 — 19 — 179 Nonperforming 2 9 5 1 — — 1 — 18 Total early stage $ 716 $ 452 $ 152 $ 43 $ 5 $ 1 $ 116 $ 1 $ 1,486 Mid stage: Risk rating: Pass $ 840 $ 302 $ 146 $ 23 $ 5 $ 1 $ 101 $ 3 $ 1,421 Criticized 43 48 26 8 — 5 10 — 140 Nonperforming — 1 — 3 — — — — 4 Total mid stage $ 883 $ 351 $ 172 $ 34 $ 5 $ 6 $ 111 $ 3 $ 1,565 Later stage: Risk rating: Pass $ 906 $ 394 $ 170 $ 38 $ — $ 8 $ 224 $ 5 $ 1,745 Criticized 22 55 30 1 — 2 37 — 147 Nonperforming 17 2 4 — — — 6 — 29 Total later stage $ 945 $ 451 $ 204 $ 39 $ — $ 10 $ 267 $ 5 $ 1,921 Total investor dependent $ 2,544 $ 1,254 $ 528 $ 116 $ 10 $ 17 $ 494 $ 9 $ 4,972 Cash flow dependent: Sponsor led buyout: Risk rating: Pass $ 791 $ 452 $ 274 $ 167 $ 37 $ — $ 75 $ — $ 1,796 Criticized — 70 39 22 13 — 9 — 153 Nonperforming — 12 16 7 — — 5 — 40 Total sponsor led buyout $ 791 $ 534 $ 329 $ 196 $ 50 $ — $ 89 $ — $ 1,989 Other Risk rating: Pass $ 880 $ 513 $ 179 $ 133 $ 39 $ — $ 933 $ — $ 2,677 Criticized 19 68 34 4 — — 137 — 262 Nonperforming — — 5 — — — 1 — 6 Total other $ 899 $ 581 $ 218 $ 137 $ 39 $ — $ 1,071 $ — $ 2,945 Total cash flow dependent $ 1,690 $ 1,115 $ 547 $ 333 $ 89 $ — $ 1,160 $ — $ 4,934 Private bank: Risk rating: Pass $ 1,878 $ 1,153 $ 394 $ 353 $ 295 $ 406 $ 382 $ 1 $ 4,862 Criticized 3 10 5 1 5 8 1 — 33 Nonperforming — — 3 — — 2 1 — 6 Total private bank $ 1,881 $ 1,163 $ 402 $ 354 $ 300 $ 416 $ 384 $ 1 $ 4,901 Balance sheet dependent: Risk rating: Pass $ 838 $ 190 $ 199 $ 19 $ — $ — $ 858 $ 1 $ 2,105 Criticized 56 4 — — — — 26 — 86 Nonperforming — — — — — — — — — Total balance sheet dependent $ 894 $ 194 $ 199 $ 19 $ — $ — $ 884 $ 1 $ 2,191 Premium wine: Risk rating: Pass $ 127 $ 194 $ 71 $ 79 $ 115 $ 154 $ 135 $ 36 $ 911 Criticized 18 24 36 10 13 6 34 — 141 Nonperforming — — — — 1 — — — 1 Total Premium wine $ 145 $ 218 $ 107 $ 89 $ 129 $ 160 $ 169 $ 36 $ 1,053 Other: Risk rating: Pass $ — $ 16 $ 11 $ — $ — $ 1 $ — $ — $ 28 Criticized — — — — — — — — — Nonperforming — — — — — — — — — Total other $ — $ 16 $ 11 $ — $ — $ 1 $ — $ — $ 28 SBA loans: Risk rating: Pass $ 1,456 $ — $ — $ — $ — $ — $ — $ — $ 1,456 Criticized 103 — — — — — — — 103 Nonperforming — — — — — — — — — Total SBA loans $ 1,559 $ — $ — $ — $ — $ — $ — $ — $ 1,559 Total loans $ 9,153 $ 4,008 $ 1,863 $ 934 $ 530 $ 600 $ 28,038 $ 55 $ 45,181 Allowance for Credit Losses: Loans In the second quarter of 2021, the ACL for loans increased by $4 million from the prior quarter, driven primarily by growth in our loan portfolio, partially offset by improved economic conditions within our forecasted assumptions. The economic forecast in Moody's Analytics June 2021 forecast was utilized in our quantitative model for the ACL as of June 30, 2021. The forecast assumptions included an improvement in the unemployment rate as a result of continued business re-openings and the effect of government aid programs, as well as an improved forecasted gross domestic product growth rate. We determined the forecast to be a reasonable view of the outlook for the economy given the available information at current quarter end. To the extent we identified credit risk considerations that were not captured by the Moody's Analytics June 2021 forecast, we addressed the risk through management's qualitative adjustments to our ACL. We do not estimate expected credit losses on AIR on loans, as AIR is reversed or written off when the full collection of the AIR related to a loan becomes doubtful. AIR on loans totaled $143 million at June 30, 2021 and $126 million at December 31, 2020 and is reported in "Accrued interest receivable and other assets" in our unaudited interim consolidated balance sheets. The following tables summarize the activity relating to our ACL for loans for the three and six months ended June 30, 2021 and 2020, broken out by portfolio segment: Three months ended June 30, 2021 Beginning Balance March 31, 2021 Charge-offs Recoveries Provision (Reduction) for Credit Losses Ending Balance June 30, 2021 (Dollars in millions) Global fund banking $ 60 $ — $ — $ 6 $ 66 Investor dependent: Early stage 62 (5) 2 (4) 55 Growth stage 106 (1) 1 (3) 103 Total investor dependent 168 (6) 3 (7) 158 Cash flow and balance sheet dependent 112 (7) — 14 119 Private bank 44 (2) — 5 47 Premium wine and other 8 — — (2) 6 Total ACL $ 392 $ (15) $ 3 $ 16 $ 396 Three months ended June 30, 2020 Beginning Balance March 31, 2020 Charge-offs Recoveries Provision (Reduction) for Credit Losses Ending Balance June 30, 2020 (Dollars in millions) Global fund banking $ 57 $ — $ — $ (3) $ 54 Investor dependent: Early stage 127 (2) 3 20 148 Growth stage 149 (4) 1 (2) 144 Total investor dependent 276 (6) 4 18 292 Cash flow and balance sheet dependent 104 (8) — 27 123 Private bank 88 (1) — 4 91 Premium wine and other 24 — — 2 26 SBA loans — — — 4 4 Total ACL $ 549 $ (15) $ 4 $ 52 $ 590 Six months ended June 30, 2021 Beginning Balance December 31, 2020 Charge-offs Recoveries Provision (Reduction) for Credit Losses Ending Balance June 30, 2021 (Dollars in millions) Global fund banking $ 46 $ (80) $ — $ 100 $ 66 Investor dependent: Early stage 86 (19) 3 (15) 55 Growth stage 127 (1) 5 (28) 103 Total investor dependent 213 (20) 8 (43) 158 Cash flow and balance sheet dependent 125 (7) — 1 119 Private bank 53 (2) — (4) 47 Premium wine and other 9 (1) — (2) 6 SBA loans 2 — — (2) — Total ACL $ 448 $ (110) $ 8 $ 50 $ 396 Six months ended June 30, 2020 Beginning Balance December 31, 2019 Impact of adopting ASC 326 Charge-offs Recoveries Provision for Credit Losses Foreign Currency Translation Adjustments Ending Balance June 30, 2020 (Dollars in millions) Global fund banking $ 107 $ (70) $ — $ — $ 17 $ — $ 54 Investor dependent: Early stage 26 40 (12) 4 91 (1) 148 Growth stage 56 32 (27) 5 79 (1) 144 Total investor dependent 82 72 (39) 9 170 (2) 292 Cash flow and balance sheet dependent 81 (1) (11) 3 51 — 123 Private bank 22 12 (2) — 59 — 91 Premium wine and other 13 12 — — — 1 26 SBA loans — — — — 4 — 4 Total ACL $ 305 $ 25 $ (52) $ 12 $ 301 $ (1) $ 590 The following table summarizes the aging of our loans broken out by risk-based segment as of June 30, 2021 and December 31, 2020: (Dollars in millions) 30 - 59 60 - 89 Equal to or Greater Total Past Current Total Loans Past Due June 30, 2021: Global fund banking $ — $ — $ — $ — $ 30,630 $ 30,630 $ — Investor dependent: Early stage 1 — 1 2 1,563 1,565 — Mid stage — 2 — 2 1,706 1,708 — Later stage 1 — — 1 2,054 2,055 — Total investor dependent 2 2 1 5 5,323 5,328 — Cash flow dependent: Sponsor led buyout — — — — 1,917 1,917 — Other 5 — — 5 2,921 2,926 — Total cash flow dependent 5 — — 5 4,838 4,843 — Private bank — — 2 2 5,295 5,297 2 Balance sheet dependent 1 3 — 4 2,800 2,804 — Premium wine 2 — — 2 1,000 1,002 — Other — — — — 7 7 — SBA loans — 1 1 2 841 843 1 Total loans $ 10 $ 6 $ 4 $ 20 $ 50,734 $ 50,754 $ 3 December 31, 2020: Global fund banking $ 28 $ — $ — $ 28 $ 25,515 $ 25,543 $ — Investor dependent: Early stage 6 2 — 8 1,478 1,486 — Mid stage 6 — 1 7 1,558 1,565 — Later stage 5 — — 5 1,916 1,921 — Total investor dependent 17 2 1 20 4,952 4,972 — Cash flow dependent Sponsor led buyout — — — — 1,989 1,989 — Other 6 — — 6 2,939 2,945 — Total cash flow dependent 6 — — 6 4,928 4,934 — Private bank 4 4 — 8 4,893 4,901 — Balance sheet dependent 1 1 — 2 2,189 2,191 — Premium wine 3 — 1 4 1,049 1,053 — Other — — — — 28 28 — SBA loans — — — — 1,559 1,559 — Total loans $ 59 $ 7 $ 2 $ 68 $ 45,113 $ 45,181 $ — Nonaccrual Loans The following table summarizes our nonaccrual loans with no allowance for credit loss at June 30, 2021 and December 31, 2020: June 30, 2021 December 31, 2020 (Dollars in millions) Nonaccrual Loans Nonaccrual Loans with no Allowance for Credit Loss Nonaccrual Loans Nonaccrual Loans with no Allowance for Credit Loss Investor dependent: Early stage $ 11 $ 3 $ 18 $ — Mid stage 5 — 4 3 Later stage 21 — 29 — Total investor dependent 37 3 51 3 Cash flow dependent: Sponsor led buyout 34 — 40 — Other 1 1 6 1 Total cash flow dependent 35 1 46 1 Private bank 7 2 6 3 Premium wine — — 1 1 Total nonaccrual loans $ 79 $ 6 $ 104 $ 8 TDRs As of June 30, 2021, we had 12 TDRs with a total carrying value of $61 million where concessions have been granted to borrowers experiencing financial difficulties, in an attempt to maximize collection. There were no unfunded commitments available for funding to the clients associated with these TDRs as of June 30, 2021. The following table summarizes our loans modified in TDRs, broken out by risk-based segment, at June 30, 2021 and December 31, 2020: (Dollars in millions) June 30, 2021 December 31, 2020 Loans modified in TDRs: Investor dependent: Early stage $ 1 $ 7 Mid stage 5 4 Later stage 15 25 Total investor dependent 21 36 Cash flow dependent: Sponsor led buyout 34 22 Other 1 1 Total cash flow dependent 35 23 Private bank 3 — Premium wine 2 2 Total loans modified in TDRs $ 61 $ 61 The following table summarizes the recorded investment in loans modified in TDRs, broken out by risk-based segment, for modifications made during the three and six months ended June 30, 2021 and 2020: Three months ended June 30, Six months ended June 30, (Dollars in millions) 2021 2020 2021 2020 Loans modified in TDRs during the period: Investor dependent: Early stage $ 1 $ — $ 1 $ — Mid stage — 5 — 11 Later stage — 4 — 7 Total investor dependent 1 9 1 18 Cash flow dependent: Sponsor led buyout — — 13 — Other — 4 — 4 Total cash flow dependent — 4 13 4 Private bank 1 — 3 — Premium wine — 1 — 1 Total loans modified in TDRs during the period (1) $ 2 $ 14 $ 17 $ 23 (1) There were $6 million and $7 million of partial charge-offs for the three and six months ended June 30, 2021, respectively, and $5 million and $18 million of partial charge-offs for the three and six months ended June 30, 2020, respectively. During the three months ended June 30, 2021 and 2020, new TDRs of $1 million and $14 million, respectively, were modified through payment deferrals granted to our clients. During the three months ended June 30, 2021, new TDRs of $1 million were modified through forgiveness of principal; there were no modifications of principal forgiveness during the three months ended June 30, 2020. During the six months ended June 30, 2021 and 2020, $14 million and $23 million, respectively, were modified through payment deferrals granted to our clients, and $3 million and less than $1 million, respectively, were modified through forgiveness of principal. The following table summarizes the recorded investment in loans modified in TDRs within the previous 12 months that subsequently defaulted during the three and six months ended June 30, 2021 and June 30, 2020: Three months ended June 30, Six months ended June 30, (Dollars in millions) 2021 2020 2021 2020 TDRs modified within the previous 12 months that defaulted during the period: Cash flow dependent: Sponsor led buyout $ — $ 10 $ — $ 10 Total cash flow dependent — 10 — 10 Total TDRs modified within the previous 12 months that defaulted in the period $ — $ 10 $ — $ 10 Charge-offs and defaults on previously restructured loans are evaluated to determine the impact to the ACL for loans, if any. The evaluation of these defaults may impact the assumptions used in calculating the reserve on other TDRs and nonaccrual loans as well as management’s overall outlook of macroeconomic factors that affect the reserve on the loan portfolio as a whole. After evaluating the charge-offs and defaults experienced on our TDRs we determined that no change to our reserving methodology for TDRs was necessary to determine the ACL for loans as of June 30, 2021. ACL: Unfunded Credit Commitments We maintain a separate ACL for unfunded credit commitments that is determined using a methodology that is inherently similar to the methodology used for calculating the ACL for loans. At June 30, 2021 , our ACL estimates utilized the improved Moody's economic forecasts from June 2021 as mentioned above. The following table summarizes the activity relating to our ACL for unfunded credit commitments for the three and six months ended June 30, 2021 and 2020: Three months ended June 30, Six months ended June 30, (Dollars in millions) 2021 2020 2021 2020 ACL: unfunded credit commitments, beginning balance $ 105 $ 85 $ 121 $ 67 Impact of adopting ASC 326 — — — 23 Provision of credit losses 15 14 (1) 9 ACL: unfunded credit commitments, ending balance (1) $ 120 $ 99 $ 120 $ 99 (1) The “ACL: unfunded credit commitments” is included as a component of “other liabilities” on our unaudited interim consolidated balance sheets. See Note 13 — “Off-Balance Sheet Arrangements, Guarantees and Other Commitments” of the “Notes to Interim Consolidated Financial Statements (unaudited)” under Part I, Item 1 of this report for additional disclosures related to our commitments to extend credit.

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	6 Months Ended
Goodwill and Other Intangible Assets	Jun. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets Goodwill Goodwill at both June 30, 2021 and December 31, 2020 was $143 million, which was a result of revenue generating synergies expected from our acquisition of SVB Leerink in 2019 as well as our acquisition of WestRiver Group's debt fund business in December 2020. Other Intangible Assets The components of net other intangible assets were as follows: June 30, 2021 December 31, 2020 (Dollars in millions) Gross Amount Accumulated Amortization Net Carrying Amount Gross Amount Accumulated Amortization Net Carrying Amount Other intangible assets: Customer relationships $ 42 $ 10 $ 32 $ 42 $ 8 $ 34 Other 36 11 25 36 9 27 Total other intangible assets $ 78 $ 21 $ 57 $ 78 $ 17 $ 61 For the six months ended June 30, 2021, we recorded amortization expense of $4 million. Assuming no future impairments of other intangible assets or additional acquisitions or dispositions, the following table presents the Company's future expected amortization expense for other intangible assets that will continue to be amortized as of June 30, 2021: Years ended December 31, Other 2021 (excluding the six months ended June 30, 2021) $ 4 2022 8 2023 8 2024 8 2025 7 2026 and thereafter 22 Total future amortization expense $ 57

Short-Term Borrowings and Long-

Short-Term Borrowings and Long-Term Debt	6 Months Ended
Short-Term Borrowings and Long-Term Debt	Jun. 30, 2021
Debt Disclosure [Abstract]
Short-Term Borrowings and Long-Term Debt	Short-Term Borrowings and Long-Term Debt The following table represents outstanding short-term borrowings and long-term debt at June 30, 2021 and December 31, 2020: Carrying Value (Dollars in millions) Maturity Principal value at June 30, 2021 June 30, 2021 December 31, 2020 Short-term borrowings: Other short-term borrowings (1) $ 34 $ 34 $ 21 Total short-term borrowings $ 34 $ 21 Long-term debt: 3.50% Senior Notes January 29, 2025 $ 350 $ 349 $ 349 3.125% Senior Notes June 5, 2030 500 495 495 1.800% Senior Notes February 2, 2031 500 494 — 2.100% Senior Notes May 15, 2028 500 496 — Total long-term debt $ 1,834 $ 844 (1) Represents cash collateral received from certain counterparties in relation to market value exposures of derivative contracts in our favor. Interest expense related to short-term borrowings and long-term debt was $11 million and $20 million for the three and six months ended June 30, 2021, respectively and $5 million and $11 million for the three and six months ended June 30, 2020, respectively. The weighted average interest rate associated with our short-term borrowings was 0.8 percent as of June 30, 2021 and 0.8 percent as of as of December 31, 2020. Short-term Borrowings We have certain facilities in place to enable us to access short-term borrowings on a secured and unsecured basis. Our secured facilities include collateral pledged to the FHLB of San Francisco and the discount window at the FRB (using both fixed income securities and loans as collateral). Our unsecured facility consists of our uncommitted federal funds lines. As of June 30, 2021, collateral pledged to the FHLB of San Francisco was comprised primarily of fixed income investment securities and loans and had a carrying value of $7.1 billion, of which $5.9 billion was available to support additional borrowings. As of June 30, 2021, collateral pledged to the discount window at the FRB was comprised of fixed income investment securities and had a carrying value of $0.9 billion, all of which was unused and available to support additional borrowings. Our total unused and available borrowing capacity for our uncommitted federal funds lines totaled $1.9 billion at June 30, 2021. Our total unused and available borrowing capacity under our master repurchase agreements with various financial institutions totaled $4.0 billion at June 30, 2021. 3.50% Senior Notes In January 2015, SVB Financial issued $350 million of 3.50% Senior Notes due in January 2025. We received net proceeds of approximately $346 million after deducting underwriting discounts and commissions and issuance costs. The balance of our 3.50% Senior Notes at June 30, 2021 was $349 million, which is reflective of $1 million of debt issuance costs and a discount of less than $1 million. 3.125% Senior Notes On June 5, 2020, the Company issued $500 million of 3.125% Senior Notes due in June 2030 ("3.125% Senior Notes"). The 3.125% Senior Notes may be redeemed by us, at our option, at any time prior to March 5, 2030, at a redemption price equal to the full aggregate principal amount plus a “make-whole” premium payment. We received net proceeds from this offering of approximately $495 million after deducting underwriting discounts and commissions and issuance costs. The balance of our 3.125% Senior Notes at June 30, 2021 was $495 million, which is reflective of $4 million of debt issuance costs and a discount of less than $1 million. 1.800% Senior Notes On February 2, 2021 the Company issued $500 million of 1.800% Senior Notes due February 2031 ("1.800% Senior Notes"), with interest payments starting August 2, 2021, and payable every February 2 nd and August 2 nd . The notes are senior unsecured obligations of SVB Financial Group and rank equally with all of our other unsecured and unsubordinated indebtedness. We received net proceeds from this offering of approximately $494 million after deducting underwriting discounts and commissions and issuance costs. The balance of our 1.800% Senior Notes at June 30, 2021 was $494 million, which is reflective of $4 million of debt issuance costs and a $2 million discount. 2.100% Senior Notes On May 13, 2021 the Company issued $500 million of 2.100% Senior Notes due May 2028 ("2.100% Senior Notes"), with interest payments starting November 15, 2021, and payable every May 15 th and November 15 th . The notes are senior unsecured obligations of SVB Financial Group and rank equally with all of our other unsecured and unsubordinated indebtedness. We received net proceeds from this offering of approximately $496 million after deducting underwriting discounts and commissions and issuance costs. The balance of our 2.100%

Derivative Financial Instrument

Derivative Financial Instruments	6 Months Ended
Derivative Financial Instruments	Jun. 30, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Derivative Financial Instruments We primarily use derivative financial instruments to manage interest rate risk and currency exchange rate risk and to assist customers with their risk management objectives, which may include currency exchange rate risks and interest rate risks. Also, in connection with negotiating credit facilities and certain other services, we often obtain equity warrant assets giving us the right to acquire stock in private, venture-backed companies in the technology and life science/healthcare industries. Interest Rate Risk Interest rate risk is our primary market risk and can result from timing and volume differences in the repricing of our interest rate sensitive assets and liabilities and changes in market interest rates. To manage interest rate risk on our interest rate sensitive assets, we have entered into interest rate swap contracts to hedge against future changes in interest rates. We designate these interest rate swap contracts as fair value and cash flow hedges. Fair Value Hedges To manage interest rate risk on our AFS securities portfolio, we enter into pay-fixed, receive-floating interest rate swap contracts to hedge against exposure to changes in the fair value of the securities resulting from changes in interest rates. We designate these interest rate swap contracts as fair value hedges that qualify for hedge accounting under ASC 815, Derivatives and Hedging ("ASC 815") and have elected to account for a portion of them using the last-of-layer method as outlined in ASC 815. We record the fair value hedges in other assets and other liabilities. For qualifying fair value hedges, both the changes in the fair value of the derivative and the portion of the fair value adjustments associated with the last-of-layer attributable to the hedged risk will be recognized into earnings as they occur. Derivative amounts affecting earnings are recognized consistent with the classification of the hedged item in the line item "investment securities" as part of interest income, a component of consolidated net income. We assess hedge effectiveness under ASC 815 on a quarterly basis to ensure all hedges remain highly effective and hedge accounting under ASC 815 can be applied. In conjunction with the assessment of effectiveness, we assess the hedged item to ensure it is expected to be outstanding at the hedged item’s assumed maturity date and the last-of-layer method of accounting under ASC 815 can be applied. If the hedging relationship no longer exists or no longer qualifies as a hedge per ASC 815, any remaining fair value basis adjustments are allocated to the individual assets in the portfolio and amortized into earnings over a period consistent with the amortization of other discounts and premiums associated with the respective assets. As allowed under GAAP, we applied the "shortcut" method of accounting to a portion of our fair value hedges which assumes there is perfect effectiveness. The following table summarizes the amortized cost basis of hedged assets that are designated and qualify as fair value hedges and the cumulative amount of fair value hedging adjustments included in the carrying value that have been recorded on our unaudited interim consolidated balance sheets as of June 30, 2021: June 30, 2021 (Dollars in millions) Amortized Cost Basis of the Hedged Assets Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Assets AFS securities (1) $ 21,817 $ 4 (1) These amounts include the amortized cost basis of closed portfolios used to designate hedging relationships in which the hedged item is the last layer expected to be remaining at the end of the hedging relationship. At June 30, 2021, the amortized cost basis of the closed portfolios used in these hedging relationships was $17.5 billion, the amounts of the designated hedged items was $8.8 billion and the cumulative basis adjustments associated with these hedging relationships was $6 million. Cash Flow Hedges To manage interest rate risk on our variable-interest rate loan portfolio, we enter into interest rate swap contracts to hedge against future changes in interest rates by using hedging instruments to lock in future cash inflows that would otherwise be impacted by movements in the market interest rates. We designate these interest rate swap contracts as cash flow hedges that qualify for hedge accounting under ASC 815 and record them in other assets and other liabilities. For qualifying cash flow hedges, changes in the fair value of the derivative are recorded in AOCI and recognized in earnings as the hedged item affects earnings. Derivative amounts affecting earnings are recognized consistent with the classification of the hedged item in the line item "Loans" as part of interest income, a component of consolidated net income. We assess hedge effectiveness under ASC 815 on a quarterly basis to ensure all hedges remain highly effective and hedge accounting under ASC 815 can be applied. If the hedging relationship no longer exists or no longer qualifies as a hedge per ASC 815, any amounts remaining as gain or loss in AOCI are reclassified into earnings in the line item "Loans" as part of interest income, a component of consolidated net income. As of March 31, 2020, all derivatives previously classified as hedges with notional balances totaling $5.0 billion and a net asset fair value of $228 million were terminated. As of June 30, 2021, the total unrealized gains on terminated cash flow hedges remaining in AOCI was $148 million, $107 million net of tax. The unrealized gains will be reclassified into interest income as the underlying forecasted transactions impact earnings through the original maturity of the hedged forecasted transactions. The total remaining term over which the unrealized gains will be reclassified into earnings is approximately four years. Currency Exchange Risk We enter into foreign exchange forward contracts to economically reduce our foreign exchange exposure risk associated with the net difference between foreign currency denominated assets and liabilities. We do not designate any foreign exchange forward contracts as derivative instruments that qualify for hedge accounting. Gains or losses from changes in currency rates on foreign currency denominated instruments are recorded in the line item “other” as part of noninterest income, a component of consolidated net income. We may experience ineffectiveness in the economic hedging relationship, because the instruments are revalued based upon changes in the currency’s spot rate on the principal value, while the forwards are revalued on a discounted cash flow basis. We record forward agreements in gain positions in other assets and loss positions in other liabilities, while net changes in fair value are recorded in the line item “other” as part of noninterest income, a component of consolidated net income. Other Derivative Instruments Also included in our derivative instruments are equity warrant assets and client forward and option contracts, and client interest rate contracts. For further description of these other derivative instruments, refer to Note 2 — “Summary of Significant Accounting Policies" under Part II, Item 8 of our 2020 Form 10-K. Counterparty Credit Risk We are exposed to credit risk if counterparties to our derivative contracts do not perform as expected. We mitigate counterparty credit risk through credit approvals, limits, monitoring procedures and obtaining collateral, as appropriate. With respect to measuring counterparty credit risk for derivative instruments, we measure the fair value of a group of financial assets and financial liabilities on a net risk basis by counterparty portfolio. The total notional or contractual amounts and fair value of our derivative financial instruments at June 30, 2021 and December 31, 2020 were as follows: June 30, 2021 December 31, 2020 Notional or Fair Value Notional or Fair Value (Dollars in millions) Derivative Assets (1) Derivative Liabilities (1) Derivative Assets (1) Derivative Liabilities (1) Derivatives designated as hedging instruments: Interest rate risks: Interest rate swaps $ 9,775 $ 16 $ — $ — $ — $ — Interest rate swaps 3,025 — 2 — — — Derivatives not designated as hedging instruments: Currency exchange risks: Foreign exchange forwards 616 10 — 68 — — Foreign exchange forwards 184 — 2 567 — 20 Other derivative instruments: Equity warrant assets 301 266 — 253 203 — Client foreign exchange forwards 11,234 165 — 8,026 215 — Client foreign exchange forwards 10,717 — 153 7,491 — 188 Client foreign currency options 233 2 — 98 2 — Client foreign currency options 233 — 2 98 — 2 Client interest rate derivatives 1,306 65 — 1,082 68 — Client interest rate derivatives (2) 1,483 — 59 1,251 — 27 Total derivatives not designated as hedging instruments 508 216 488 237 Total derivatives $ 524 $ 218 $ 488 $ 237 (1) Derivative assets and liabilities are included in "accrued interest receivable and other assets" and "other liabilities " , respectively, on our consolidated balance sheets. (2) The amount reported reflects reductions of approximately $6 million and $45 million of derivative liabilities at June 30, 2021 and December 31, 2020, respectively, reflecting variation margin treated as settlement of the related derivative fair values for legal and accounting purposes as required by central clearing houses. A summary of our derivative activity and the related impact on our consolidated statements of income for the three and six months ended June 30, 2021 and 2020 is as follows: Three months ended June 30, Six months ended June 30, (Dollars in millions) Statement of income location 2021 2020 2021 2020 Derivatives designated as hedging instruments: Interest rate risks: Amounts reclassified from AOCI into income Interest income - loans $ 16 $ 16 $ 31 $ 18 Change in fair value of interest rate swaps hedging investment securities Interest income - investment securities taxable (14) — 4 — Change in fair value of hedged investment securities Interest income - investment securities taxable 4 — (13) — Net gains associated with interest rate risk derivatives $ 6 $ 16 $ 22 $ 18 Derivatives not designated as hedging instruments: Currency exchange risks: Gains (losses) on revaluations of internal foreign currency instruments, net Other noninterest income $ 7 $ 11 (21) $ 3 (Losses) gains on internal foreign exchange forward contracts, net Other noninterest income (6) (9) 21 (1) Net gains associated with internal currency risk $ 1 $ 2 $ — $ 2 Other derivative instruments: Gains (losses) on revaluations of client foreign currency instruments, net Other noninterest income $ 17 $ 5 $ 15 $ (3) (Losses) gains on client foreign exchange forward contracts, net Other noninterest income (12) (7) (10) 1 Net gains (losses) associated with client currency risk $ 5 $ (2) $ 5 $ (2) Net gains on equity warrant assets Gains on equity warrant assets, net $ 122 $ 27 $ 344 $ 40 Net (losses) gains on other derivatives Other noninterest income $ (2) $ — $ 2 $ (5) Balance Sheet Offsetting Certain of our derivative and other financial instruments are subject to enforceable master netting arrangements with our counterparties. These agreements provide for the net settlement of multiple contracts with a single counterparty through a single payment, in a single currency, in the event of default on or termination of any one contract. The following table summarizes our assets subject to enforceable master netting arrangements as of June 30, 2021 and December 31, 2020: Gross Amounts of Recognized Assets Gross Amounts offset in the Statement of Financial Position Net Amounts of Assets Presented in the Statement of Financial Position Gross Amounts Not Offset in the Statement of Financial Position but Subject to Master Netting Arrangements Net Amount (Dollars in millions) Financial Instruments Cash Collateral Received (1) June 30, 2021 Derivative assets: Interest rate swaps $ 16 $ — $ 16 $ (2) $ — $ 14 Foreign exchange forwards 175 — 175 (48) (31) 96 Foreign currency options 2 — 2 (1) — 1 Client interest rate derivatives 65 — 65 (62) (3) — Total derivative assets 258 — 258 (113) (34) 111 Reverse repurchase, securities borrowing, and similar arrangements 762 — 762 (762) — — Total $ 1,020 $ — $ 1,020 $ (875) $ (34) $ 111 December 31, 2020 Derivative assets: Interest rate swaps $ — $ — $ — $ — $ — $ — Foreign exchange forwards 215 — 215 (76) (21) 118 Foreign currency options 2 — 2 (1) — 1 Client interest rate derivatives 68 — 68 (68) — — Total derivative assets 285 — 285 (145) (21) 119 Reverse repurchase, securities borrowing, and similar arrangements 227 — 227 (227) — — Total $ 512 $ — $ 512 $ (372) $ (21) $ 119 (1) Cash collateral received from our counterparties in relation to market value exposures of derivative contracts in our favor is recorded as a component of “short-term borrowings” on our consolidated balance sheets. The following table summarizes our liabilities subject to enforceable master netting arrangements as of June 30, 2021 and December 31, 2020: Gross Amounts of Recognized Liabilities Gross Amounts offset in the Statement of Financial Position Net Amounts of Liabilities Presented in the Statement of Financial Position Gross Amounts Not Offset in the Statement of Financial Position but Subject to Master Netting Arrangements Net Amount (Dollars in millions) Financial Instruments Cash Collateral Pledged (1) June 30, 2021 Derivative liabilities: Interest rate swaps $ 2 $ — $ 2 $ (2) $ — $ — Foreign exchange forwards 155 — 155 (54) (42) 59 Foreign currency options 2 — 2 — (1) 1 Client interest rate derivatives 59 — 59 (37) (21) 1 Total derivative liabilities 218 — 218 (93) (64) 61 Repurchase, securities lending, and similar arrangements — — — — — — Total $ 218 $ — $ 218 $ (93) $ (64) $ 61 December 31, 2020 Derivative liabilities: Interest rate swaps $ — $ — $ — $ — $ — $ — Foreign exchange forwards 208 — 208 (84) (45) 79 Foreign currency options 2 — 2 (1) — 1 Client interest rate derivatives 27 — 27 — (26) 1 Total derivative liabilities 237 — 237 (85) (71) 81 Repurchase, securities lending, and similar arrangements — — — — — — Total $ 237 $ — $ 237 $ (85) $ (71) $ 81 (1) Cash collateral pledged to our counterparties in relation to market value exposures of derivative contracts in a liability position and repurchase agreements are recorded as a component of “cash and cash equivalents " on our consolidated balance sheets.

Noninterest Income

Noninterest Income	6 Months Ended
Noninterest Income	Jun. 30, 2021
Other Income and Expenses [Abstract]
Noninterest Income	Noninterest Income All of the Company's revenue from contracts with customers within the scope of ASC 606 is recognized within noninterest income. Included below is a summary of noninterest income for the three and six months ended June 30, 2021 and 2020: Three months ended June 30, Six months ended June 30, (Dollars in millions) 2021 2020 2021 2020 Noninterest income: Gains on investment securities, net $ 305 $ 35 $ 472 $ 81 Gains on equity warrant assets, net 122 27 344 40 Client investment fees 15 32 35 75 Foreign exchange fees 67 36 124 84 Credit card fees 31 21 59 50 Deposit service charges 28 21 53 45 Lending related fees 18 11 34 24 Letters of credit and standby letters of credit fees 13 11 26 23 Investment banking revenue 103 142 245 188 Commissions 17 17 41 33 Other 42 16 72 27 Total noninterest income $ 761 $ 369 $ 1,505 $ 670 Gains on investment securities, net Net gains on investment securities include both gains and losses from our non-marketable and other equity securities, which include public equity securities held as a result of exercised equity warrant assets, gains and losses from sales of our AFS debt securities portfolio, when applicable, and carried interest. Our non-marketable and other equity securities portfolio primarily represents investments in venture capital and private equity funds, SPD-SVB, debt funds, private and public portfolio companies, which includes public equity securities held as a result of exercised equity warrant assets, and qualified affordable housing projects. We experience variability in the performance of our non-marketable and other equity securities from period to period, which results in net gains or losses on investment securities (both realized and unrealized). This variability is due to a number of factors, including unrealized changes in the values of our investments, changes in the amount of realized gains from distributions, changes in liquidity events and general economic and market conditions. Unrealized gains from non-marketable and other equity securities for any single period are typically driven by valuation changes. The extent to which any unrealized gains or losses will become realized is subject to a variety of factors, including, among other things, the expiration of certain sales restrictions to which these equity securities may be subject to (e.g., lock-up agreements), changes in prevailing market prices, market conditions, the actual sales or distributions of securities, and the timing of such actual sales or distributions, which, to the extent such securities are managed by our managed funds, are subject to our funds' separate discretionary sales/distributions and governance processes. Carried interest is comprised of preferential allocations of profits recognizable when the return on assets of our individual managed fund of funds and direct venture funds exceeds certain performance targets and is payable to us, as the general partners of the managed funds. The carried interest we earn is often shared with employees, who are also members of the general partner entities. We record carried interest on a quarterly basis by measuring fund performance to date versus the performance target. For our unconsolidated managed funds, carried interest is recorded as gains on investment securities, net. For our consolidated managed funds, it is recorded as a component of net income attributable to noncontrolling interests. Carried interest allocated to others is recorded as a component of net income attributable to noncontrolling interests. Any carried interest paid to us (or our employees) may be subject to reversal to the extent fund performance declines to a level where inception to date carried interest is lower than actual payments made by the funds. The limited partnership agreements for our funds provide that carried interest is generally not paid to the general partners until the funds have provided a full return of contributed capital to the limited partners. Accrued, but unpaid carried interest may be subject to reversal to the extent that the fund performance declines to a level where inception-to-date carried interest is less than prior amounts recognized. Carried interest income is accounted for under an ownership model based on ASC 323 — Equity Method of Accounting and ASC 810 — Consolidation. Our AFS securities portfolio is a fixed income investment portfolio that is managed with the objective of earning an appropriate portfolio yield over the long-term while maintaining sufficient liquidity and credit diversification as well as addressing our asset/liability management objectives. Though infrequent, sales of debt securities in our AFS securities portfolio may result in net gains or losses and are conducted pursuant to the guidelines of our investment policy related to the management of our liquidity position and interest rate risk. Gains on investment securities are recognized outside of the scope of ASC 606 as it explicitly excludes noninterest income earned from our investment-related activities. A summary of gains and losses on investment securities for the three and six months ended June 30, 2021 and 2020 is as follows: Three months ended June 30, Six months ended June 30, (Dollars in millions) 2021 2020 2021 2020 Gains on non-marketable and other equity securities, net $ 305 $ 35 $ 472 $ 20 Gains on sales of AFS securities, net — — — 61 Total gains on investment securities, net $ 305 $ 35 $ 472 $ 81 Gains on equity warrant assets, net In connection with negotiating credit facilities and certain other services, we often obtain rights to acquire stock in the form of equity warrant assets in primarily private, venture-backed companies in the technology and life science/healthcare industries. Any changes in fair value from the grant date fair value of equity warrant assets will be recognized as increases or decreases to other assets on our balance sheet and as net gains or losses on equity warrant assets, in noninterest income, a component of consolidated net income. Gains on equity warrant assets are recognized outside of the scope of ASC 606 as it explicitly excludes noninterest income earned from our derivative-related activities. A summary of net gains on equity warrant assets for the three and six months ended June 30, 2021 and 2020 is as follows: Three months ended June 30, Six months ended June 30, (Dollars in millions) 2021 2020 2021 2020 Equity warrant assets: Gains on exercises, net $ 78 $ 9 $ 251 $ 33 Terminations (1) — (1) (1) Changes in fair value, net 45 18 94 8 Total net gains on equity warrant assets $ 122 $ 27 $ 344 $ 40 Client investment fees Client investment fees include fees earned from discretionary investment management services for substantially all clients, managing clients’ portfolios based on their investment policies, strategies and objectives and investment advisory fees. Revenue is recognized on a monthly basis upon completion of our performance obligation and consideration is typically received in the subsequent month. Included in our sweep money market fees are Rule 12(b)-1 fees, revenue sharing and customer transactional-based fees. Rule 12(b)-1 fees and revenue sharing are recognized as earned based on client funds that are invested in the period, typically monthly. Transactional based fees are earned and recognized on fixed income securities when the transaction is executed on the clients' behalf. Amounts paid to third-party service providers are predominantly expensed, such that client investment fees are recorded gross of payments made to third parties. A summary of client investment fees by instrument type for the three and six months ended June 30, 2021 and 2020 is as follows: Three months ended June 30, Six months ended June 30, (Dollars in millions) 2021 2020 2021 2020 Client investment fees by type: Sweep money market fees $ 7 $ 19 $ 18 $ 42 Asset management fees (1) 8 12 16 21 Repurchase agreement fees — 1 1 12 Total client investment fees (2) $ 15 $ 32 $ 35 $ 75 (1) Represents fees earned from investments in third-party money market mutual funds and fixed-income securities managed by SVB Asset Management. (2) Represents fees earned on client investment funds that are maintained at third-party financial institutions and are not recorded on our balance sheet. Foreign exchange fees Foreign exchange fees represent the income differential between purchases and sales of foreign currency on behalf of our clients, primarily from spot contracts. Foreign exchange spot contract fees are recognized upon the completion of the single performance obligation, the execution of a spot trade in exchange for a fee. In line with customary business practice, the legal right transfers to the client upon execution of a foreign exchange contract on the trade date, and as such, we currently recognize our fees based on the trade date and the transactions are typically settled within two business days. Forward contract and option premium fees are recognized outside of the scope of ASC 606 as it explicitly excludes noninterest income earned from our derivative-related activities. A summary of foreign exchange fee income by instrument type for the three and six months ended June 30, 2021 and 2020 is as follows: Three months ended June 30, Six months ended June 30, (Dollars in millions) 2021 2020 2021 2020 Foreign exchange fees by instrument type: Spot contract commissions $ 60 $ 33 $ 115 $ 74 Forward contract commissions 6 3 8 10 Option premium fees 1 — 1 — Total foreign exchange fees $ 67 $ 36 $ 124 $ 84 Credit card fees Credit card fees include interchange income from credit and debit cards and fees earned from processing transactions for merchants. Interchange income is earned after satisfying our performance obligation of providing nightly settlement services to a payment network. Costs related to rewards programs are recorded when the rewards are earned by the customer and presented as a reduction to interchange fee income. Rewards programs continue to be accounted for under ASC 310 - Receivables . Our performance obligations for merchant service fees are to transmit data and funds between the merchant and the payment network. Credit card interchange and merchant service fees are earned daily upon completion of transaction settlement services. Annual card service fees are recognized on a straight-line basis over a 12-month period and continue to be accounted for under ASC 310 - Receivables . A summary of credit card fees by instrument type for the three and six months ended June 30, 2021 and 2020 is as follows: Three months ended June 30, Six months ended June 30, (Dollars in millions) 2021 2020 2021 2020 Credit card fees by instrument type: Card interchange fees, net $ 26 $ 15 $ 49 $ 37 Merchant service fees 4 5 8 10 Card service fees 1 1 2 3 Total credit card fees $ 31 $ 21 $ 59 $ 50 Deposit service charges Deposit service charges include fees earned from performing cash management activities and other deposit account services. Deposit services include, but are not limited to, the following: receivables services, which include merchant services, remote capture, lockbox, electronic deposit capture, and fraud control services. Payment and cash management products and services include wire transfer and automated clearing house payment services to enable clients to transfer funds more quickly, as well as business bill pay, business credit and debit cards, account analysis, and disbursement services. Deposit service charges are recognized over the period in which the related performance obligation is provided, generally on a monthly basis, and are presented in the "Disaggregation of revenue from contracts with customers" table below. Lending related fees Unused commitment fees, minimum finance fees and unused line fees are recognized as earned on a monthly basis. Fees that qualify for syndication treatment are recognized at the completion of the syndicated loan deal for which the fees were received. Lending related fees are recognized outside of the scope of ASC 606 as it explicitly excludes noninterest income earned from our lending-related activities. A summary of lending related fees by instrument type for the three and six months ended June 30, 2021 and 2020 is as follows: Three months ended June 30, Six months ended June 30, (Dollars in millions) 2021 2020 2021 2020 Lending related fees by instrument type: Unused commitment fees $ 15 $ 8 $ 28 $ 17 Other 3 3 6 7 Total lending related fees $ 18 $ 11 $ 34 $ 24 Letters of credit and standby letters of credit fees Commercial and standby letters of credit represent conditional commitments issued by us on behalf of a client to guarantee the performance of the client to a third party when certain specified future events have occurred. Fees generated from letters of credit and standby letters of credit are deferred as a component of other liabilities and recognized in noninterest income over the commitment period using the straight-line method, based on the likelihood that the commitment being drawn down will be remote. Letters of credit and standby letters of credit fees are recognized outside of the scope of ASC 606 as it explicitly excludes noninterest income earned from our lending related activities. Investment banking revenue We earn investment banking revenue from clients for providing services related to securities underwriting, private placements and advisory services on strategic matters such as mergers and acquisitions. Underwriting fees are attributable to public and private offerings of equity and debt securities and are recognized at the point in time when the offering has been deemed to be completed by the lead manager of the underwriting group. Once the offering is completed, the performance obligation has been satisfied; we recognize the applicable management fee as well as the underwriting fee, net of consideration payable to customers. Private placement fees are recognized at the point in time when the private placement is completed, which is generally when the client accepts capital from the fund raise. Advisory fees from mergers and acquisitions engagements are generally recognized at the point in time when the related transaction is completed. Expenses are deferred only to the extent they are explicitly reimbursable by the client and the related revenue is recognized at a point in time. All other deal-related expenses are expensed as incurred. We have determined that we act as principal in the majority of these transactions and therefore present expenses gross within other operating expenses. A summary of investment banking revenue by instrument type for the three and six months ended June 30, 2021 and 2020 is as follows: Three months ended June 30, Six months ended June 30, (Dollars in millions) 2021 2020 2021 2020 Investment banking revenue: Underwriting fees $ 84 $ 131 $ 209 $ 162 Advisory fees 9 9 13 24 Private placements and other 10 2 23 2 Total investment banking revenue $ 103 $ 142 $ 245 $ 188 Commissions Commissions include commissions received from customers for the execution of agency-based brokerage transactions in listed and over-the-counter equities. The execution of each trade order represents a distinct performance obligation and the transaction price is fixed at the point in time or trade order execution. Trade execution is satisfied at the point in time that the customer has control of the asset and as such, fees are recorded on a trade date basis. Commissions are presented in the "Disaggregation of revenue from contracts with customers" table below. Other Other noninterest income primarily includes income from fund management fees, gains from conversion of convertible debt options and service revenue. Fund management fees are comprised of fees charged directly to our managed funds of funds and direct venture funds. Fund management fees are based upon the contractual terms of the limited partnership agreements and are generally recognized as earned over the specified contract period, which is generally equal to the life of the individual fund. Fund management fees are calculated as a percentage of committed capital and collected in advance and are received quarterly. Fund management fees for certain of our limited partnership agreements are calculated as a percentage of distributions made by the funds and revenue is recorded only at the time of a distribution event. As distribution events are not predetermined for these certain funds, management fees are considered variable and constrained under ASC 606. Gains from conversion of convertible debt options represent unrealized valuation gains on loan conversion derivative assets, and realized gains from the conversion of debt instruments, convertible into a third party’s common stock upon a triggering event such as an IPO. Gains from conversion of convertible debt options are recognized outside of the scope of ASC 606 as it explicitly excludes noninterest income earned from our derivative-related activities. Other service revenue primarily consists of dividend income on FHLB/FRB stock, correspondent bank rebate income, incentive fees, or performance fees related to carried interest and other fee income. We recognize revenue when our performance obligations are met and record revenues on a daily/monthly, quarterly, semi-annual or annual basis. For event driven revenue sources, we recognize revenue when: (i) persuasive evidence of an arrangement exists, (ii) we have performed the service, provided we have no other remaining obligations to the customer, (iii) the fee is fixed or determinable and (iv) collectability is probable. A summary of other noninterest income by instrument type for the three and six months ended June 30, 2021 and 2020 is as follows: Three months ended June 30, Six months ended June 30, (Dollars in millions) 2021 2020 2021 2020 Other noninterest income by instrument type: Fund management fees $ 21 $ 8 $ 36 $ 16 Net gains on revaluation of foreign currency instruments, net of foreign exchange forward contracts (1) 6 — 5 — Other service revenue 15 8 31 11 Total other noninterest income $ 42 $ 16 $ 72 $ 27 (1) Represents the net revaluation of client and internal foreign currency denominated financial instruments. We enter into foreign exchange forward contracts to economically reduce our foreign exchange exposure related to client and internal foreign currency denominated financial instruments. Disaggregation of revenue from contracts with customers The following tables present our revenues from contracts with customers disaggregated by revenue source and segment for the three and six months ended June 30, 2021 and 2020: Three months ended June 30, 2021 Global SVB Private SVB Capital (2) SVB Other Items Total (Dollars in millions) Revenue from contracts with customers: Client investment fees $ 14 $ 1 $ — $ — $ — $ 15 Spot contract commissions 60 — — — — 60 Card interchange fees, gross 48 — — — 1 49 Merchant service fees 4 — — — — 4 Deposit service charges 27 — — — 1 28 Investment banking revenue — — — 103 — 103 Commissions — — — 17 — 17 Fund management fees — — 20 1 — 21 Performance fees — — 8 — — 8 Correspondent bank rebates 1 — — — — 1 Total revenue from contracts with customers $ 154 $ 1 $ 28 $ 121 $ 2 $ 306 Revenues outside the scope of ASC 606 (1) 20 — 147 28 260 455 Total noninterest income $ 174 $ 1 $ 175 $ 149 $ 262 $ 761 (1) Amounts are accounted for under separate guidance than ASC 606. (2) Global Commercial Bank’s, SVB Capital’s and SVB Leerink's components of noninterest income are shown net of noncontrolling interests. Noncontrolling interest is included within “Other Items. " Three months ended June 30, 2020 Global SVB Private SVB Capital (2) SVB Other Items Total (Dollars in millions) Revenue from contracts with customers: Client investment fees $ 31 $ 1 $ — $ — $ — $ 32 Spot contract commissions 33 — — — — 33 Card interchange fees, gross 26 — — — — 26 Merchant service fees 5 — — — — 5 Deposit service charges 21 — — — — 21 Investment banking revenue — — — 142 — 142 Commissions — — — 17 — 17 Fund management fees — — 7 1 — 8 Correspondent bank rebates 1 — — — — 1 Total revenue from contracts with customers $ 117 $ 1 $ 7 $ 160 $ — $ 285 Revenues outside the scope of ASC 606 (1) 16 — 14 4 50 84 Total noninterest income $ 133 $ 1 $ 21 $ 164 $ 50 $ 369 (1) Amounts are accounted for under separate guidance than ASC 606. (2) Global Commercial Bank’s, SVB Capital’s and SVB Leerink's components of noninterest income are shown net of noncontrolling interests. Noncontrolling interest is included within “Other Items. " Six months ended June 30, 2021 Global SVB Private SVB Capital (2) SVB Other Items Total (Dollars in millions) Revenue from contracts with customers: Client investment fees $ 33 $ 2 $ — $ — $ — $ 35 Spot contract commissions 115 — — — — 115 Card interchange fees, gross 89 — — — 1 90 Merchant service fees 8 — — — — 8 Deposit service charges 52 — — — 1 53 Investment banking revenue — — — 245 — 245 Commissions — — — 41 — 41 Fund management fees — — 33 3 — 36 Performance fees — — 8 — — 8 Correspondent bank rebates 2 — — — — 2 Total revenue from contracts with customers $ 299 $ 2 $ 41 $ 289 $ 2 $ 633 Revenues outside the scope of ASC 606 (1) 34 — 203 30 605 872 Total noninterest income $ 333 $ 2 $ 244 $ 319 $ 607 $ 1,505 (1) Amounts are accounted for under separate guidance than ASC 606. (2) Global Commercial Bank’s, SVB Capital’s and SVB Leerink's components of noninterest income are shown net of noncontrolling interests. Noncontrolling interest is included within “Other Items. " Six months ended June 30, 2020 Global SVB Private SVB Capital (2) SVB Other Items Total (Dollars in millions) Revenue from contracts with customers: Client investment fees $ 74 $ 1 $ — $ — $ — $ 75 Spot contract commissions 74 — — — — 74 Card interchange fees, gross 62 — — — 1 63 Merchant service fees 10 — — — — 10 Deposit service charges 45 — — — — 45 Investment banking revenue — — — 188 — 188 Commissions — — — 33 — 33 Fund management fees — — 14 2 — 16 Correspondent bank rebates 2 — — — — 2 Total revenue from contracts with customers $ 267 $ 1 $ 14 $ 223 $ 1 $ 506 Revenues outside the scope of ASC 606 (1) 33 — 12 3 116 164 Total noninterest income $ 300 $ 1 $ 26 $ 226 $ 117 $ 670 (1) Amounts are accounted for under separate guidance than ASC 606. (2) Global Commercial Bank’s, SVB Capital’s and SVB Leerink's components of noninterest income are shown net of noncontrolling interests. Noncontrolling interest is included within “Other Items. " The timing of revenue recognition may differ from the timing of cash settlements or invoicing to customers. We record a receivable when revenue is recognized prior to invoicing, and unearned revenue when revenue is recognized subsequent to receipt of consideration. These assets and liabilities are reported on the consolidated balance sheets on a contract-by-contract basis at the end of each reporting period. During the three and six months ended June 30, 2021 and 2020, changes in our contract assets, contract liabilities and receivables were not material. Additionally, revenues recognized during the three and six months ended June 30, 2021 and 2020 that were included in the corresponding contract liability balance at the beginning of the periods were not material.

Other Noninterest Expense

Other Noninterest Expense	6 Months Ended
Other Noninterest Expense	Jun. 30, 2021
Other Income and Expenses [Abstract]
Other Noninterest Expense	Other Noninterest Expense A summary of other noninterest expense for the three and six months ended June 30, 2021 and 2020 is as follows: Three months ended June 30, Six months ended June 30, (Dollars in millions) 2021 2020 2021 2020 Lending and other client related processing costs $ 8 $ 7 $ 15 $ 16 Correspondent bank fees 5 4 9 8 Investment banking activities 3 8 9 11 Trade order execution costs 3 2 6 5 Data processing services 5 3 10 7 Telephone 2 2 4 4 Dues and publications 1 1 3 2 Postage and supplies 1 1 1 1 Other 17 11 33 26 Total other noninterest expense $ 45 $ 39 $ 90 $ 80

Segment Reporting

Segment Reporting	6 Months Ended
Segment Reporting	Jun. 30, 2021
Segment Reporting [Abstract]
Segment Reporting	Segment Reporting We have four reportable segments for management reporting purposes: Global Commercial Bank, SVB Private Bank, SVB Capital and SVB Leerink. The results of our reportable and operating segments are based on our internal management reporting process. Our Global Commercial Bank and SVB Private Bank segments primary source of revenue is from net interest income, which is primarily the difference between interest earned on loans, net of FTP, and interest paid on deposits, net of FTP. Accordingly, these segments are reported using net interest income, net of FTP. FTP is an internal measurement framework designed to assess the financial impact of a financial institution’s sources and uses of funds. It is the mechanism by which a funding credit is given for deposits raised, and a funding charge is made for funded loans. FTP is calculated at an instrument level based on account characteristics. We also evaluate performance based on provision for credit losses, noninterest income and noninterest expense, which are presented as components of segment operating profit or loss. In calculating each operating segment’s noninterest expense, we consider the direct costs incurred by the operating segment as well as certain allocated direct costs. As part of this review, we allocate certain corporate overhead costs to a corporate account. We do not allocate income tax expense or the provisions for unfunded credit commitments or HTM securities (included in provision for credit losses) to our segments. Additionally, our management reporting model is predicated on average asset balances; therefore, period-end asset balances are not presented for segment reporting purposes. Changes in an individual client’s primary relationship designation have resulted, and in the future may result, in the inclusion of certain clients in different segments in different periods. Unlike financial reporting, which benefits from the comprehensive structure provided by GAAP, our internal management reporting process is highly subjective, as there is no comprehensive, authoritative guidance for management reporting. Our management reporting process measures the performance of our operating segments based on our internal operating structure, which is subject to change from time to time, and is not necessarily comparable with similar information for other financial services companies. For reporting purposes, SVB Financial Group has four reportable segments for which we report our financial information: • Global Commercial Bank is comprised of results from the following operating segments: ◦ Our Commercial Bank products and services are provided by the Bank and its subsidiaries to commercial clients in key innovation markets. The Bank provides solutions to the financial needs of commercial clients through credit, treasury management, foreign exchange, trade finance, and other services. In addition, the Bank and its subsidiaries offer a variety of investment services and solutions to its clients that enable them to effectively manage their assets. ◦ Our Global Fund Banking Division provides banking products and services primarily to our private equity and venture capital clients. ◦ SVB Wine provides banking products and services to our premium wine industry clients, including vineyard development loans. • SVB Private Bank is the private banking division of the Bank, which provides a range of personal financial solutions for consumers. Our clients are primarily private equity/venture capital professionals and executive leaders of the innovation companies they support. We offer a customized suite of private banking services, including mortgages, home equity lines of credit, restricted and private stock loans, capital call lines of credit and other secured and unsecured lending products, as well as cash and wealth management services. In addition, we provide real estate secured loans to eligible employees through our EHOP. • SVB Capital is the funds management business of SVB Financial Group, which focuses primarily on venture capital investments. SVB Capital manages funds (primarily venture capital funds) on behalf of third-party limited partners and, on a more limited basis, SVB Financial Group. The SVB Capital family of funds is comprised of direct venture funds that invest in companies, funds of funds that invest in other venture capital funds, investments in certain debt funds in which we are a strategic investor and WestRiver Group's debt fund business. SVB Capital generates income for the Company primarily from investment returns (including carried interest allocations) and management fees. • SVB Leerink is an investment bank specializing in the equity and convertible capital markets, mergers and acquisitions, equity research and sales and trading for growth and innovation-minded healthcare and life science companies and operates as a wholly-owned subsidiary of SVB Financial. SVB Leerink provides investment banking services across all subsectors of healthcare including: biotechnology, pharmaceuticals, medical devices, diagnostic and life science tools, healthcare services and digital health. SVB Leerink focuses on two primary lines of business: (i) investment banking focused on providing companies with capital-raising services, financial advice on mergers and acquisitions, sales and trading services and equity research, and (ii) sponsorship of private investment funds. The following table presents a summary of financial results of our reportable segments along with a reconciliation to our consolidated interim results. Our reportable segment information for the three and six months ended June 30, 2021 and 2020 is as follows: (Dollars in millions) Global SVB Private SVB Capital (1) SVB Other Items (2) Total Three months ended June 30, 2021 Net interest income $ 715 $ 29 $ — $ — $ (16) $ 728 Provision for credit losses (11) (5) — — (19) (35) Noninterest income 174 1 175 149 262 761 Noninterest expense (3) (307) (15) (18) (98) (215) (653) Income before income tax expense (4) $ 571 $ 10 $ 157 $ 51 $ 12 $ 801 Total average loans, amortized cost $ 42,727 $ 5,154 $ — $ — $ 1,931 $ 49,812 Total average assets (5) (6) 131,885 5,199 613 729 12,291 150,717 Total average deposits 128,918 3,977 — — 865 133,760 Three months ended June 30, 2020 Net interest income $ 485 $ 19 $ — $ — $ 9 $ 513 Provision for credit losses (44) (4) — — (18) (66) Noninterest income 133 1 21 164 50 369 Noninterest expense (3) (241) (10) (8) (109) (112) (480) Income (loss) before income tax expense (4) $ 333 $ 6 $ 13 $ 55 $ (71) $ 336 Total average loans, amortized cost $ 30,472 $ 4,036 $ — $ — $ 2,004 $ 36,512 Total average assets (5) (6) 67,936 4,072 430 455 5,540 78,433 Total average deposits 65,091 2,120 — — 706 67,917 Six months ended June 30, 2021 Net interest income $ 1,334 $ 56 $ — $ — $ (2) $ 1,388 (Provision for) reduction of credit losses (56) 4 — — (2) (54) Noninterest income 333 2 244 319 607 1,505 Noninterest expense (3) (585) (28) (34) (235) (407) (1,289) Income before income tax expense (4) $ 1,026 $ 34 $ 210 $ 84 $ 196 $ 1,550 Total average loans, amortized cost $ 41,016 $ 5,066 $ — $ — $ 1,974 $ 48,056 Total average assets (5) (6) 120,470 5,114 595 748 10,910 137,837 Total average deposits 117,655 3,636 — — 957 122,248 Six months ended June 30, 2020 Net interest income $ 949 $ 34 $ — $ — $ 54 $ 1,037 Provision for credit losses (238) (59) — — (13) (310) Noninterest income 300 1 26 226 117 670 Noninterest expense (3) (466) (20) (17) (171) (205) (879) Income (loss) before income tax expense (4) $ 545 $ (44) $ 9 $ 55 $ (47) 518 Total average loans, amortized cost $ 29,805 $ 3,946 $ — $ — $ 1,335 $ 35,086 Total average assets (5) (6) 64,871 3,982 439 469 5,659 75,420 Total average deposits 62,153 2,021 — — 689 64,863 (1) Global Commercial Bank’s, SVB Capital’s and SVB Leerink's components of net interest income, noninterest income, noninterest expense and total average assets are shown net of noncontrolling interests for all periods presented. Noncontrolling interest is included within “Other Items." (2) The “Other Items” column reflects the adjustments necessary to reconcile the results of the reportable segments to the consolidated financial statements prepared in conformity with GAAP. Net interest income consists primarily of interest earned from our fixed income investment portfolio, net of FTP. Noninterest income consists primarily of gains or losses on equity warrant assets, gains or losses on the sale of AFS securities and gains or losses on equity securities from exercised warrant assets. Noninterest expense consists primarily of expenses associated with corporate support functions such as finance, human resources, marketing, legal and other expenses. (3) The Global Commercial Bank segment includes direct depreciation and amortization of $8 million and $6 million for the three months ended June 30, 2021 and 2020, respectively, and $14 million and $11 million for the six months ended June 30, 2021 and 2020, respectively. (4) The internal reporting model used by management to assess segment performance does not calculate income tax expense by segment. Our effective tax rate is a reasonable approximation of the segment rates. (5) Total average assets equal the greater of total average assets or the sum of total average liabilities and total average stockholders' equity for each segment to reconcile the results to the consolidated financial statements prepared in conformity with GAAP.

Off-Balance Sheet Arrangements,

Off-Balance Sheet Arrangements, Guarantees and Other Commitments	6 Months Ended
	Jun. 30, 2021
Disclosure Off Balance Sheet Arrangements Guarantees And Other Commitments Additional Information [Abstract]
Off-Balance Sheet Arrangements, Guarantees and Other Commitments	Off-Balance Sheet Arrangements, Guarantees and Other Commitments In the normal course of business, we use financial instruments with off-balance sheet risk to meet the financing needs of our customers. These financial instruments include commitments to extend credit, commercial and standby letters of credit and commitments to invest in venture capital and private equity fund investments. These instruments involve, to varying degrees, elements of credit risk. Credit risk is defined as the possibility of sustaining a loss because other parties to the financial instrument fail to perform in accordance with the terms of the contract. Commitments to Extend Credit The following table summarizes information related to our commitments to extend credit at June 30, 2021 and December 31, 2020: (Dollars in millions) June 30, 2021 December 31, 2020 Loan commitments available for funding: (1) $ 33,174 $ 28,975 Commercial and standby letters of credit (2) 3,211 3,007 Total unfunded credit commitments $ 36,385 $ 31,982 Allowance for unfunded credit commitments (3) 120 121 (1) Represents commitments which are available for funding, due to clients meeting all collateral, compliance and financial covenants required under loan commitment agreements. (2) See below for additional information on our commercial and standby letters of credit. (3) Our allowance for credit losses for unfunded credit commitments includes an allowance for both our unfunded loan commitments and our letters of credit. Commercial and Standby Letters of Credit The table below summarizes our commercial and standby letters of credit at June 30, 2021. The maximum potential amount of future payments represents the amount that could be remitted under letters of credit if there were a total default by the guaranteed parties, without consideration of possible recoveries under recourse provisions or from the collateral held or pledged. (Dollars in millions) Expires in One Expires After Total Amount Maximum Amount Financial standby letters of credit $ 2,916 $ 101 $ 3,017 $ 3,017 Performance standby letters of credit 121 5 126 126 Commercial letters of credit 23 45 68 68 Total $ 3,060 $ 151 $ 3,211 $ 3,211 Deferred fees related to financial and performance standby letters of credit were $18 million at June 30, 2021 and $17 million at December 31, 2020. At June 30, 2021, collateral in the form of cash of $1.9 billion was available to us to reimburse losses, if any, under financial and performance standby letters of credit. Commitments to Invest in Venture Capital and Private Equity Funds We make commitments to invest in venture capital and private equity funds, which generally make investments in privately-held companies. Commitments to invest in these funds are generally made for a 10-year period from the inception of the fund. Although the limited partnership agreements governing these investments typically do not restrict the general partners from calling 100% of committed capital in one year, it is customary for these funds to call most of the capital commitments over 5 to 7 years, and in certain cases, the funds may not call 100% of committed capital. The actual timing of future cash requirements to fund these commitments is generally dependent upon the investment cycle, overall market conditions, and the nature and type of industry in which the privately held companies operate. The following table details our total capital commitments, unfunded capital commitments, and our ownership percentage in each fund at June 30, 2021: (Dollars in millions) SVBFG Capital Commitments SVBFG Unfunded SVBFG Ownership CP II, LP (1) $ 1 $ — 5.1 % Capital Preferred Return Fund, LP 13 — 20.0 Growth Partners, LP 25 1 33.0 Strategic Investors Fund, LP 15 1 12.6 Strategic Investors Fund II, LP 15 1 8.6 Strategic Investors Fund III, LP 15 1 5.9 Strategic Investors Fund IV, LP 12 2 5.0 Strategic Investors Fund V funds 1 — Various Other venture capital and private equity fund investments (equity method accounting) 11 3 Various Debt funds (equity method accounting) 59 — Various Other fund investments (2) 267 16 Various Total $ 434 $ 25 (1) Our ownership includes direct ownership of 1.3 percent and indirect ownership interest of 3.8 percent through our investment in Strategic Investors Fund II, LP. (2) Represents commitments to 163 funds (primarily venture capital funds) where our ownership interest is generally less than five percent of the voting interests of each such fund. The following table details the amounts of remaining unfunded commitments to venture capital and private equity funds by our consolidated managed funds of funds (including our interest and the noncontrolling interests) at June 30, 2021: (Dollars in millions) Unfunded Commitments Capital Preferred Return Fund, LP $ 2 Growth Partners, LP 1 Total $ 3

Income Taxes

Income Taxes	6 Months Ended
Income Taxes	Jun. 30, 2021
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes We are subject to income tax and non-income based taxes by the U.S. federal tax authorities as well as various state and foreign tax authorities. We have identified the U.S. federal and California state jurisdictions as major tax filings. Our U.S. federal tax returns remain open to full examination for 2017 and subsequent tax years. Our California tax returns remain open to full examination for 2016 and subsequent tax years. At June 30, 2021, our unrecognized tax benefit was $22 million, the recognition of which would reduce our income tax expense by $18 million. We do not expect that our unrecognized tax benefit will materially change in the next 12 months. We recognize interest and penalties related to income tax matters as part of income before income taxes. Interest and penalties were not material for the three and six months ended June 30, 2021.

Fair Value of Financial Instrum

Fair Value of Financial Instruments	6 Months Ended
Fair Value of Financial Instruments	Jun. 30, 2021
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	Fair Value of Financial Instruments Fair Value Measurements Our AFS securities, derivative instruments and certain non-marketable and other equity securities are financial instruments recorded at fair value on a recurring basis. We make estimates regarding valuation of assets and liabilities measured at fair value in preparing our interim consolidated financial statements. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability (the “exit price”) in an orderly transaction between market participants at the measurement date. There is a three-level hierarchy for disclosure of assets and liabilities recorded at fair value. The classification of assets and liabilities within the hierarchy is based on whether the inputs to the valuation methodology used for measurement are observable or unobservable and on the significance of those inputs in the fair value measurement. Observable inputs reflect market-derived or market-based information obtained from independent sources, while unobservable inputs reflect our estimates about market data and views of market participants. The three levels for measuring fair value are based on the reliability of inputs and are as follows: Level 1 Fair value measurements based on quoted prices in active markets for identical assets or liabilities that we have the ability to access. Since valuations are based on quoted prices that are readily and regularly available in an active market, valuation of these instruments does not entail a significant degree of judgment. Assets utilizing Level 1 inputs include U.S. Treasury securities, foreign government debt securities, exchange-traded equity securities and certain marketable securities accounted for under fair value accounting. Level 2 Fair value measurements based on quoted prices in markets that are not active or for which all significant inputs are observable, directly or indirectly. Valuations for the AFS securities are provided by independent pricing service providers who have experience in valuing these securities and by comparison to and/or average of quoted market prices obtained from independent brokers. We perform a monthly analysis on the values received from third parties to ensure that the prices represent a reasonable estimate of the fair value. The procedures include, but are not limited to, initial and ongoing review of third-party pricing methodologies, review of pricing trends and monitoring of trading volumes. Additional corroboration, such as obtaining a non-binding price from a broker, may be obtained depending on the frequency of trades of the security and the level of liquidity or depth of the market. We ensure prices received from independent brokers represent a reasonable estimate of the fair value through the use of observable market inputs including comparable trades, yield curve, spreads and, when available, market indices. As a result of this analysis, if the Company determines that there is a more appropriate fair value based upon the available market data, the price received from the third party is adjusted accordingly. Below is a summary of the significant inputs used for each class of Level 2 assets and liabilities: U.S. agency debentures: Fair value measurements of U.S. agency debentures are based on the characteristics specific to bonds held, such as issuer name, issuance date, coupon rate, maturity date and any applicable issuer call option features. Valuations are based on market spreads relative to similar term benchmark market interest rates, generally U.S. Treasury securities. Agency-issued MBS: Agency-issued MBS are pools of individual conventional mortgage loans underwritten to U.S. agency standards with similar coupon rates, tenor, and other attributes such as geographic location, loan size and origination vintage. Fair value measurements of these securities are based on observable price adjustments relative to benchmark market interest rates taking into consideration estimated loan prepayment speeds. Agency-issued CMO: Agency-issued CMO are structured into classes or tranches with defined cash flow characteristics and are collateralized by U.S. agency-issued mortgage pass-through securities. Fair value measurements of these securities incorporate similar characteristics of mortgage pass-through securities such as coupon rate, tenor, geographic location, loan size and origination vintage, in addition to incorporating the effect of estimated prepayment speeds on the cash flow structure of the class or tranche. These measurements incorporate observable market spreads over an estimated average life after considering the inputs listed above. Agency-issued CMBS: Fair value measurements of these securities are based on spreads to benchmark market interest rates (usually U.S. Treasury rates or rates observable in the swaps market), prepayment speeds, loan default rate assumptions and loan loss severity assumptions on underlying loans. Foreign exchange forward and option contract assets and liabilities: Fair value measurements of these assets and liabilities are priced based on spot and forward foreign currency rates and option volatility assumptions. Interest rate derivative and interest rate swap assets and liabilities: Fair value measurements of interest rate derivatives and interest rate swaps are priced considering the coupon rate of the fixed leg of the contract and the variable coupon rate on the floating leg of the contract. Valuation is based on both spot and forward rates on the swap yield curve and the credit worthiness of the contract counterparty. Other equity securities: Fair value measurements of equity securities of public companies are priced based on quoted market prices less a discount if the securities are subject to certain sales restrictions. Certain sales restriction discounts generally range from 10 percent to 20 percent depending on the duration of the sale restrictions which typically range from three Equity warrant assets (public portfolio): Fair value measurements of equity warrant assets of publicly-traded portfolio companies are valued based on the Black-Scholes option pricing model. The model uses the price of publicly-traded companies (underlying stock price), stated strike prices, warrant expiration dates, the risk-free interest rate and market-observable option volatility assumptions. Level 3 The fair value measurement is derived from valuation techniques that use significant assumptions not observable in the market. These unobservable assumptions reflect our own estimates of assumptions we believe market participants would use in pricing the asset. The valuation techniques are consistent with the market approach, income approach and/or the cost approach used to measure fair value. Below is a summary of the valuation techniques used for each class of Level 3 assets: Venture capital and private equity fund investments not measured at net asset value: Fair value measurements are based on consideration of a range of factors including, but not limited to, the price at which the investment was acquired, the term and nature of the investment, local market conditions, values for comparable securities, and as it relates to the private company, the current and projected operating performance, exit strategies and financing transactions subsequent to the acquisition of the investment. The significant unobservable inputs used in the fair value measurement include the information about each portfolio company, including actual and forecasted results, cash position, recent or planned transactions and market comparable companies. Significant changes to any one of these inputs in isolation could result in a significant change in the fair value measurement; however, we generally consider all factors available through ongoing communication with the portfolio companies and venture capital fund managers to determine whether there are changes to the portfolio company or the environment that indicate a change in the fair value measurement. Equity warrant assets (public portfolio): Fair value measurements of equity warrant assets of publicly-traded portfolio companies are valued based on the Black-Scholes option pricing model. The model uses the price of publicly-traded companies (underlying stock price), stated strike prices, warrant expiration dates, the risk-free interest rate and market-observable option volatility assumptions. Modeled asset values are further adjusted by applying a discount of up to 20 percent for certain warrants that have certain sales restrictions or other features that indicate a discount to fair value is warranted. As sale restrictions are lifted, discounts are adjusted downward to zero once all restrictions expire or are removed. Equity warrant assets (private portfolio): Fair value measurements of equity warrant assets of private portfolio companies are priced based on a Black-Scholes option pricing model to estimate the asset value by using stated strike prices, option expiration dates, risk-free interest rates and option volatility assumptions. Option volatility assumptions used in the Black-Scholes model are based on public market indices whose members operate in similar industries as companies in our private company portfolio. Option expiration dates are modified to account for estimates to actual life relative to stated expiration. Overall model asset values are further adjusted for a general lack of liquidity due to the private nature of the associated underlying company. There is a direct correlation between changes in the volatility and remaining life assumptions in isolation and the fair value measurement while there is an inverse correlation between changes in the liquidity discount assumption and the fair value measurement. The following fair value hierarchy table presents information about our assets and liabilities that are measured at fair value on a recurring basis as of June 30, 2021: (Dollars in millions) Level 1 Level 2 Level 3 Balance at June 30, 2021 Assets: AFS securities: U.S. Treasury securities $ 6,235 $ — $ — $ 6,235 U.S. agency debentures — 81 — 81 Foreign government debt securities 15 — — 15 Residential MBS: Agency-issued MBS — 11,562 — 11,562 Agency-issued CMO — fixed rate — 4,424 — 4,424 Agency-issued CMBS — 1,559 — 1,559 Total AFS securities 6,250 17,626 — 23,876 Non-marketable and other equity securities (fair value accounting): Non-marketable securities: Venture capital and private equity fund investments measured at net asset value — — — 295 Other equity securities in public companies 35 72 — 107 Total non-marketable and other equity securities (fair value accounting) 35 72 — 402 Other assets: Foreign exchange forward and option contracts — 177 — 177 Equity warrant assets — 9 257 266 Interest rate swaps — 16 — 16 Client interest rate derivatives — 65 — 65 Total assets $ 6,285 $ 17,965 $ 257 $ 24,802 Liabilities: Foreign exchange forward and option contracts $ — $ 157 $ — $ 157 Interest rate swaps — 2 — 2 Client interest rate derivatives — 59 — 59 Total liabilities $ — $ 218 $ — $ 218 The following fair value hierarchy table presents information about our assets and liabilities that are measured at fair value on a recurring basis as of December 31, 2020: (Dollars in millions) Level 1 Level 2 Level 3 Balance at December 31, 2020 Assets: AFS securities: U.S. Treasury securities $ 4,470 $ — $ — $ 4,470 U.S. agency debentures — 237 — 237 Foreign government debt securities 24 — — 24 Residential MBS: Agency-issued MBS — 13,503 — 13,503 Agency-issued CMO—fixed rate — 8,107 — 8,107 Agency-issued CMBS — 4,572 — 4,572 Total AFS securities 4,494 26,419 — 30,913 Non-marketable and other equity securities (fair value accounting): Non-marketable securities: Venture capital and private equity fund investments measured at net asset value — — — 274 Other equity securities in public companies 43 238 — 281 Total non-marketable and other equity securities (fair value accounting) 43 238 — 555 Other assets: Foreign exchange forward and option contracts — 217 — 217 Equity warrant assets — 11 192 203 Client interest rate derivatives — 68 — 68 Total assets $ 4,537 $ 26,953 $ 192 $ 31,956 Liabilities: Foreign exchange forward and option contracts $ — $ 210 $ — $ 210 Client interest rate derivatives — 27 — 27 Total liabilities $ — $ 237 $ — $ 237 The following table presents additional information about Level 3 assets measured at fair value on a recurring basis for the three and six months ended June 30, 2021 and 2020: (Dollars in millions) Beginning Balance Total Net Gains Included in Net Income (1) Sales/Exits Issuances Transfers out of Level 3 Ending Balance Three months ended June 30, 2021 Equity warrant assets $ 233 $ 121 $ (104) $ 7 $ — $ 257 Three months ended June 30, 2020 Equity warrant assets 150 24 (15) 6 — 165 Six months ended June 30, 2021 Equity warrant assets 192 341 (285) 13 (4) 257 Six months ended June 30, 2020 Equity warrant assets 161 39 (46) 11 — 165 (1) Realized and unrealized gains (losses) are recorded in the line item “Gains on equity warrant assets, net," a component of noninterest income. The following table presents the amount of net unrealized gains and losses included in earnings attributable to Level 3 assets still held at June 30, 2021 and 2020: Three months ended June 30, Six months ended June 30, (Dollars in millions) 2021 2020 2021 2020 Other assets: Equity warrant assets (1) $ 31 $ 11 $ 92 $ 7 Total unrealized gains, net $ 31 $ 11 $ 92 $ 7 (1) Unrealized gains and losses are recorded in the line item “Gains on equity warrant assets, net, " a component of noninterest income. The extent to which any unrealized gains or losses will become realized is subject to a variety of factors, including, among other things, the expiration of current sales restrictions to which these securities are subject, the actual sales of securities and the timing of such actual sales. The following table presents quantitative information about the significant unobservable inputs used for certain of our Level 3 fair value measurements at June 30, 2021 and December 31, 2020. We have not included in this table our venture capital and private equity fund investments (fair value accounting) as we use net asset value per share (as obtained from the general partners of the investments) as a practical expedient to determine fair value. (Dollars in millions) Fair value Valuation Technique Significant Unobservable Inputs Input Range Weighted June 30, 2021: Equity warrant assets (public portfolio) 12 Black-Scholes option pricing model Volatility 48.2% - 58.5% 49.0 % Risk-Free interest rate 1.2- 1.5 1.2 Sales restrictions discount (1) 20.0 20.0 Equity warrant assets (private portfolio) 245 Black-Scholes option pricing model Volatility 25.4 - 58.5 46.3 Risk-Free interest rate 0.02 - 1.05 0.4 Marketability discount (2) 22.0 22.0 Remaining life assumption (3) 40.0 40.0 December 31, 2020: Equity warrant assets (public portfolio) 1 Black-Scholes option pricing model Volatility 46.0% - 56.8% 49.1 % Risk-Free interest rate 0.3- 0.9 0.6 Sales restrictions discount (1) 10.0 - 20.0 10.2 Equity warrant assets (private portfolio) 191 Black-Scholes option pricing model Volatility 24.4 - 56.8 43.2 Risk-Free interest rate 0.01 - 0.52 0.1 Marketability discount (2) 20.6 20.6 Remaining life assumption (3) 40.0 40.0 (1) We adjust quoted market prices of public companies, which are subject to certain sales restrictions. Sales restriction discounts generally range from 10 percent to 20 percent depending on the duration of the sales restrictions, which typically range from three (2) Our marketability discount is applied to all private company warrants to account for a general lack of liquidity due to the private nature of the associated underlying company. The quantitative measure used is based upon various option-pricing models. On a quarterly basis, a sensitivity analysis is performed on our marketability discount. (3) We adjust the contractual remaining term of private company warrants based on our estimate of the actual remaining life, which we determine by utilizing historical data on terminations and exercises. At June 30, 2021, the weighted average contractual remaining term was 6.7 years, compared to our estimated remaining life of 2.7 years. On a quarterly basis, a sensitivity analysis is performed on our remaining life assumption. For the three and six months ended June 30, 2021 and 2020, we did not have any transfers between Level 3 and Level 1. All transfers from Level 3 to Level 2 for the three and six months ended June 30, 2021 and 2020 were due to the transfer of equity warrant assets from our private portfolio to our public portfolio (see our Level 3 reconciliation above). Financial Instruments not Carried at Fair Value FASB guidance over financial instruments requires that we disclose estimated fair values for our financial instruments not carried at fair value. The following fair value hierarchy table presents the estimated fair values of our financial instruments that are not carried at fair value at June 30, 2021 and December 31, 2020: Estimated Fair Value (Dollars in millions) Carrying Amount Total Level 1 Level 2 Level 3 June 30, 2021: Financial assets: Cash and cash equivalents $ 23,959 $ 23,959 $ 23,959 $ — $ — HTM securities 59,992 60,107 — 60,107 — Non-marketable securities not measured at net asset value 262 262 — — 262 Non-marketable securities measured at net asset value 583 583 — — — Net commercial loans 45,108 46,353 — — 46,353 Net consumer loans 5,250 5,395 — — 5,395 FHLB and Federal Reserve Bank stock 83 83 — — 83 Financial liabilities: Short-term borrowings 34 34 — 34 — Non-maturity deposits (1) 145,193 145,193 145,193 — — Time deposits 645 645 — 645 — 3.50% Senior Notes 349 379 — 379 — 3.125% Senior Notes 495 534 — 534 — 1.80% Senior Notes 494 479 — 479 — 2.10% Senior Notes 496 507 — 507 — Off-balance sheet financial assets: Commitments to extend credit — 41 — — 41 December 31, 2020: Financial assets: Cash and cash equivalents $ 17,675 $ 17,675 $ 17,675 $ — $ — HTM securities 16,592 17,217 — 17,217 — Non-marketable securities not measured at net asset value 241 241 — — 241 Non-marketable securities measured at net asset value 390 390 — — — Net commercial loans 39,886 40,412 — — 40,412 Net consumer loans 4,847 4,911 — — 4,911 FHLB and Federal Reserve Bank stock 61 61 — — 61 Financial liabilities: Short-term borrowings 21 21 — 21 — Non-maturity deposits (1) 101,294 101,294 101,294 — — Time deposits 688 502 — 502 — 3.50% Senior Notes 349 383 — 383 — 3.125% Senior Notes 495 564 — 564 — Off-balance sheet financial assets: Commitments to extend credit — 37 — — 37 (1) Includes noninterest-bearing demand deposits, interest-bearing checking accounts, money market accounts and interest-bearing sweep deposits. Investments in Entities that Calculate Net Asset Value Per Share FASB guidance over certain fund investments requires that we disclose the fair value of funds, significant investment strategies of the investees, redemption features of the investees, restrictions on the ability to sell investments, estimate of the period of time over which the underlying assets are expected to be liquidated by the investee, and unfunded commitments related to the investments. Our investments in debt funds and venture capital and private equity fund investments generally cannot be redeemed. Alternatively, we expect distributions, if any, to be received primarily through IPO and M&A activity of the underlying assets of the fund. Subject to applicable requirements under the Volcker Rule, we do not have any plans to sell any of these fund investments. If we decide to sell these investments in the future, the investee fund’s management must approve of the buyer before the sale of the investments can be completed. The fair values of the fund investments have been estimated using the net asset value per share of the investments, adjusted for any differences between our measurement date and the date of the fund investment’s net asset value by using the most recently available financial information from the investee general partner, for example March 31 st for our June 30 th consolidated financial statements, adjusted for any contributions paid, distributions received from the investment, and significant fund transactions or market events during the reporting period. The following table is a summary of the estimated fair values of these investments and remaining unfunded commitments for each major category of these investments as of June 30, 2021: (Dollars in millions) Carrying Amount Fair Value Unfunded Commitments Non-marketable securities (fair value accounting): Venture capital and private equity fund investments (1) $ 295 $ 295 $ 19 Non-marketable securities (equity method accounting): Venture capital and private equity fund investments (2) 544 544 8 Debt funds (2) 7 7 — Other investments (2) 32 32 1 Total $ 878 $ 878 $ 28 (1) Venture capital and private equity fund investments within non-marketable securities (fair value accounting) include investments made by our managed funds of funds and one of our direct venture funds (consolidated VIEs) and investments in venture capital and private equity fund investments (unconsolidated VIEs). Collectively, these investments in venture capital and private equity funds are primarily in U.S. and global technology and life science/healthcare companies. Included in the fair value and unfunded commitments of fund investments under fair value accounting are $79 million and $2 million, respectively, attributable to noncontrolling interests. It is estimated that we will receive distributions from the fund investments over the next 10 to 13 years, depending on the age of the funds and any potential extensions of terms of the funds. (2) Venture capital and private equity fund investments, debt funds, and other fund investments within non-marketable securities (equity method accounting) include funds that invest in or lend money to primarily U.S. and global technology and life science/healthcare companies. It is estimated that we will receive distributions from the funds over the next 5 to 8 years, depending on the age of the funds and any potential extensions of the terms of the funds.

Legal Matters

Legal Matters	6 Months Ended
Legal Matters	Jun. 30, 2021
Commitments and Contingencies Disclosure [Abstract]
Legal Matters	Legal Matters Certain lawsuits and claims arising in the ordinary course of business have been filed or are pending against us and/or our affiliates, and we may from time to time be involved in other legal or regulatory proceedings. In accordance with applicable accounting guidance, we establish accruals for all such matters, including expected settlements, when we believe it is probable that a loss has been incurred and the amount of the loss is reasonably estimable. When a loss contingency is not both probable and estimable, we do not establish an accrual. Any such loss estimates are inherently uncertain, based on currently available information and are subject to management’s judgment and various assumptions. Due to the inherent subjectivity of these estimates and unpredictability of outcomes of legal proceedings, any amounts accrued may not represent the ultimate resolution of such matters. To the extent we believe any potential loss relating to such matters may have a material impact on our liquidity, consolidated financial position, results of operations, and/or our business as a whole and is reasonably possible but not probable, we aim to disclose information relating to such potential loss. We also aim to disclose information relating to any material potential loss that is probable but not reasonably estimable. In such cases, where reasonably practicable, we aim to provide an estimate of loss or range of potential loss. No disclosures are generally made for any loss contingencies that are deemed to be remote. Based upon information available to us, our review of lawsuits and claims filed or pending against us to date and consultation with our outside legal counsel, we have not recognized a material accrual liability for any such matters, nor do we currently expect that these matters will result in a material liability to the Company. However, the outcome of litigation and other legal and regulatory matters is inherently uncertain, and it is possible that one or more of such matters currently pending or threatened could have an unanticipated material adverse effect on our liquidity, consolidated financial position, results of operations, and/or our business as a whole, in the future.

Related Parties

Related Parties	6 Months Ended
Related Parties	Jun. 30, 2021
Related Party Transactions [Abstract]
Related Parties	Related PartiesWe have no material related party transactions requiring disclosure. In the ordinary course of business, the Bank may extend credit to related parties, including executive officers, directors, principal shareholders and their related interests. Additionally, we provide real estate secured loans to eligible employees through our EHOP. For additional details, see Note 19 — “Employee Compensation and Benefit Plans" under Part II, Item 8 of our 2020 Form 10-K.

Subsequent Events

Subsequent Events	6 Months Ended
Subsequent Events	Jun. 30, 2021
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events Acquisition of Boston Private On July 1, 2021 we completed the acquisition of Boston Private for approximately $1.2 billion in consideration. Under the terms of the merger agreement each share of Boston Private common stock was converted into the right to receive 0.228 shares of SIVB common stock and $2.10 in cash. For the transaction, we issued approximately 1.9 million shares of SIVB common stock and registered an additional 99,000 shares of SIVB common stock issuable upon the exercise, vesting or settlement of converted legacy Boston Private equity awards. The acquisition will be accounted for as a business combination. Accordingly, we will begin consolidating Boston Private's financial results in our consolidated financial statements in the third quarter of 2021. We are in the process of performing our valuation of the acquired assets and liabilities. Given the recent date of the acquisition, we have not finalized our determination of the fair value of the assets and liabilities as we continue to gather information to complete our valuations.

Basis of Presentation (Policies

Basis of Presentation (Policies)	6 Months Ended
Basis of Presentation (Policies)	Jun. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	SVB Financial Group is a diversified financial services company, as well as a bank holding company and a financial holding company. SVB Financial was incorporated in the state of Delaware in March 1999. Through our various subsidiaries and divisions, we offer a diverse set of banking and financial products and services to support our clients of all sizes and stages throughout their life cycles. In these notes to our unaudited interim consolidated financial statements, when we refer to “SVB Financial Group,” “SVBFG," the “Company,” “we,” “our,” “us” or use similar words, we mean SVB Financial Group and all of its subsidiaries collectively, including Silicon Valley Bank (the “Bank”), unless the context requires otherwise. When we refer to “SVB Financial” or the “Parent” we are referring only to the parent company, SVB Financial Group (not including subsidiaries).The accompanying unaudited interim consolidated financial statements reflect all adjustments of a normal and recurring nature that are, in the opinion of management, necessary to fairly present our financial position, results of operations and cash flows in accordance with GAAP. Such unaudited interim consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q pursuant to the rules and regulations of the SEC. Certain information and footnote disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. The results of operations for the three and six months ended June 30, 2021 are not necessarily indicative of results to be expected for any future periods. These unaudited interim consolidated financial statements should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2020 (“2020 Form 10-K”).
Use of Estimates	The preparation of unaudited interim consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Estimates may change as new information is obtained. Items that are subject to such estimates include: 1) measurements of fair value, the valuation of non-marketable and other equity securities and the valuation of equity warrant assets, 2) income taxes and 3) the adequacy of the ACL for loans and for unfunded credit commitments.
Principles of Consolidation and Presentation	Our unaudited interim consolidated financial statements include the accounts of SVB Financial Group and consolidated entities. We consolidate voting entities in which we have control through voting interests or entities through which we have a controlling financial interest in a VIE. We determine whether we have a controlling financial interest in a VIE by determining if we have: (a) the power to direct the activities of the VIE that most significantly impact the entity’s economic performance, (b) the obligation to absorb the expected losses or (c) the right to receive the expected returns of the entity. Generally, we have significant variable interests if our commitments to a limited partnership investment represent a significant amount of the total commitments to the entity. We also evaluate the impact of related parties on our determination of variable interests in our consolidation conclusions. We consolidate VIEs in which we are the primary beneficiary based on a controlling financial interest. If we are not the primary beneficiary of a VIE, we record our pro-rata interests based on our ownership percentage. VIEs are entities where investors lack sufficient equity at risk for the entity to finance its activities without additional subordinated financial support or equity investors, as a group, lack one of the following characteristics: (a) the power to direct the activities that most significantly impact the entity’s economic performance, (b) the obligation to absorb the expected losses of the entity or (c) the right to receive the expected returns of the entity. We assess VIEs to determine if we are the primary beneficiary of a VIE. A primary beneficiary is defined as a variable interest holder that has a controlling financial interest. A controlling financial interest requires both: (a) the power to direct the activities that most significantly impact the VIE’s economic performance and (b) obligation to absorb losses or receive benefits of a VIE that could potentially be significant to a VIE. Under this analysis, we also evaluate kick-out rights and other participating rights, which could provide us a controlling financial interest. The primary beneficiary of a VIE is required to consolidate the VIE. We also evaluate fees paid to managers of our limited partnership investments. We exclude those fee arrangements that are not deemed to be variable interests from the analysis of our interests in our investments in VIEs and the determination of a primary beneficiary, if any. Fee arrangements based on terms that are customary and commensurate with the services provided are deemed not to be variable interests and are, therefore, excluded.
Reclassifications	Certain prior period amounts primarily related to presentation changes to our table summarizing the activity relating to our ACL for loans and the consolidation of certain line items in our Consolidated Statement of Stockholders' Equity (unaudited), have been reclassified to conform to current period presentation.
Adoption of New Accounting Standards and Recent Accounting Pronouncements	In December 2019, the FASB issued ASU No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes (ASU 2019-12), which is part of the FASB’s initiative to reduce cost and complexity related to accounting for income taxes. ASU 2019-12 eliminates certain exceptions to the general principles of ASC 740, Income Taxes, and simplifies income tax accounting in several areas. We adopted the guidance on January 1, 2021, on a modified retrospective basis. The adoption did not have a material impact on our financial position, results of operations, cash flows or disclosures.

Stockholders' Equity and EPS (T

Stockholders' Equity and EPS (Tables)	6 Months Ended
Stockholders' Equity and EPS (Tables)	Jun. 30, 2021
Equity and Earnings Per Share [Abstract]
Reclassification out of Accumulated Other Comprehensive Income	The following table summarizes the items reclassified out of AOCI into the Consolidated Statements of Income (unaudited) for the three and six months ended June 30, 2021 and 2020: Three months ended June 30, Six months ended June 30, (Dollars in millions) Income Statement Location 2021 2020 2021 2020 Reclassification adjustment for gains on AFS securities included in net income Gains on investment securities, net $ — $ — $ — $ (61) Related tax expense Income tax expense — — — 17 Reclassification adjustment for gains on cash flow hedges included in net income Net interest income (16) (16) (31) (18) Related tax expense Income tax expense 5 4 9 5 Total reclassification adjustment for gains included in net income, net of tax $ (11) $ (12) $ (22) $ (57)
Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss)	The table below summarizes the activity relating to net gains and losses on our cash flow hedges included in AOCI for the three and six months ended June 30, 2021 and 2020. Refer to Note 9 — “Derivative Financial Instruments” for additional information regarding the termination of our cash flow hedges during the quarter ended March 31, 2020. Over the next 12 months, we expect that approximately $61 million in AOCI at June 30, 2021, related to unrealized gains will be reclassified out of AOCI and recognized in net income. Three months ended June 30, Six months ended June 30, (Dollars in millions) 2021 2020 2021 2020 Balance, beginning of period, net of tax $ 118 $ 164 $ 129 $ (2) Net increase in fair value, net of tax — — — 168 Net realized gain reclassified to net income, net of tax (11) (11) (22) (13) Balance, end of period, net of tax $ 107 $ 153 $ 107 $ 153
Reconciliation of Basic EPS to Diluted EPS	The following is a reconciliation of basic EPS to diluted EPS for the three and six months ended June 30, 2021 and 2020: Three months ended June 30, Six months ended June 30, (Dollars in millions except per share amounts, shares in thousands) 2021 2020 2021 2020 Numerator: Net income available to common stockholders $ 502 $ 229 $ 1,034 $ 361 Denominator: Weighted average common shares outstanding—basic 54,353 51,581 53,272 51,573 Weighted average effect of dilutive securities: Stock options and ESPP 272 114 274 140 Restricted stock units and awards 527 100 569 135 Weighted average common shares outstanding—diluted 55,152 51,795 54,115 51,848 Earnings per common share: Basic $ 9.23 $ 4.44 $ 19.40 $ 7.00 Diluted 9.09 4.42 19.10 6.97
Schedule of Antidilutive Securities Excluded from Computation of Earnings per Share	The following table summarizes the weighted-average common shares excluded from the diluted EPS calculation due to the antidilutive effect for the three and six months ended June 30, 2021 and 2020: Three months ended June 30, Six months ended June 30, (Shares in thousands) 2021 2020 2021 2020 Stock options 36 288 18 247 Restricted stock units — 312 44 310 Total 36 600 62 557
Schedule of Stock by Class	The following table summarizes our preferred stock at June 30, 2021: Series Description Amount outstanding (in millions) Carrying value Shares issued and outstanding Par Value Ownership interest per depositary share Liquidation preference per depositary share 2021 dividends paid per depositary share Series A 5.250% Fixed-Rate Non-Cumulative Perpetual Preferred Stock $ 350 $ 340 350,000 $ 0.001 1/40 th $ 25 $ 0.66 Series B 4.100% Fixed-Rate Non-Cumulative Perpetual Preferred Stock 750 739 7,500 0.001 1/100 th 1,000 1.17 Series C 4.000% Fixed-Rate Non-Cumulative Perpetual Preferred Stock 1,000 985 10,000 0.001 1/100 th 1,000 —
Schedule of Stockholders Equity	The following table summarizes the changes in our consolidated equity for the three months ended June 30, 2021 and 2020: Preferred Common Stock Additional Retained Accumulated Total SVBFG Noncontrolling Interests Total (Dollars in millions, except share data) Shares Amount Balance at March 31, 2020 $ 340 51,490,342 $ — $ 1,489 $ 4,613 $ 592 $ 7,034 $ 148 $ 7,182 Common stock issued under employee benefit plans and ESOP, net of restricted stock cancellations — 250,372 — 14 — — 14 — 14 Net income — — — — 234 — 234 14 248 Capital calls and distributions, net — — — — — — — (13) (13) Other comprehensive income, net of tax — — — — — 22 22 — 22 Share-based compensation, net — — — 20 — — 20 — 20 Dividends on preferred stock — — — — (5) — (5) — (5) Balance at June 30, 2020 $ 340 51,740,714 $ — $ 1,523 $ 4,842 $ 614 $ 7,319 $ 149 $ 7,468 Balance at March 31, 2021 $ 1,079 54,001,797 $ — $ 2,591 $ 6,204 $ 21 $ 9,895 $ 226 $ 10,121 Common stock issued under employee benefit plans and ESOP, net of restricted stock cancellations — 228,510 — (5) — — (5) — (5) Issuance of Common Stock — 300,000 — 146 — — 146 — 146 Issuance of Preferred Stock 985 — — — — — 985 — 985 Net income — — — — 515 — 515 113 628 Capital calls and distributions, net — — — — — — — (39) (39) Other comprehensive income, net of tax — — — — — 121 121 — 121 Share-based compensation, net — — — 28 — — 28 — 28 Dividends on preferred stock — — — — (13) — (13) — (13) Other, net — — — (5) — — (5) — (5) Balance at June 30, 2021 $ 2,064 54,530,307 $ — $ 2,755 $ 6,706 $ 142 $ 11,667 $ 300 $ 11,967

Variable Interest Entities (Tab

Variable Interest Entities (Tables)	6 Months Ended
Variable Interest Entities (Tables)	Jun. 30, 2021
Investments In Variable Interest Entities [Abstract]
Schedule of Variable Interest Entities	The following table presents the carrying amounts and classification of significant variable interests in consolidated and unconsolidated VIEs as of June 30, 2021 and December 31, 2020: (Dollars in millions) Consolidated VIEs Unconsolidated VIEs Maximum Exposure to Loss in Unconsolidated VIEs June 30, 2021: Assets: Cash and cash equivalents $ 13 $ — $ — Non-marketable and other equity securities (1) 618 955 955 Accrued interest receivable and other assets 24 — — Total assets $ 655 $ 955 $ 955 Liabilities: Other liabilities (1) 14 415 — Total liabilities $ 14 $ 415 $ — December 31, 2020: Assets: Cash and cash equivalents $ 15 $ — $ — Non-marketable and other equity securities (1) 422 859 859 Accrued interest receivable and other assets 1 — — Total assets $ 438 $ 859 $ 859 Liabilities: Other liabilities (1) 1 370 — Total liabilities $ 1 $ 370 $ — (1) Included in our unconsolidated non-marketable and other equity securities portfolio at June 30, 2021 and December 31, 2020 are investments in qualified affordable housing projects of $696 million and $616 million, respectively, and related other liabilities consisting of unfunded commitments of $415 million and $370 million, respectively.

Cash and Cash Equivalents (Tabl

Cash and Cash Equivalents (Tables)	6 Months Ended
Cash and Cash Equivalents (Tables)	Jun. 30, 2021
Cash and Cash Equivalents [Abstract]
Schedule of Cash and Cash Equivalents	The following table details our cash and cash equivalents at June 30, 2021 and December 31, 2020: (Dollars in millions) June 30, 2021 December 31, 2020 Cash and due from banks (1) $ 23,197 $ 17,448 Securities purchased under agreements to resell (2) 762 227 Total cash and cash equivalents $ 23,959 $ 17,675 (1) At June 30, 2021 and December 31, 2020, $16.4 billion and $13.7 billion, respectively, of our cash and due from banks was deposited at the Federal Reserve Bank and was earning interest at the Federal Funds target rate, and interest-earning deposits in other financial institutions were $5.8 billion and $3.0 billion, respectively. (2) At June 30, 2021 and December 31, 2020, securities purchased und er agreements to resell were collateralized by U.S. Treasury securities and U.S. agency securities with aggregate fair value s of $777 million a n d $232 million, respectively. None of these securities were sold or repledged as of June 30, 2021 and December 31, 2020.

Investment Securities (Tables)

Investment Securities (Tables)	6 Months Ended
Investment Securities (Tables)	Jun. 30, 2021
Investments, Debt and Equity Securities [Abstract]
Components of Available-for-Sale Securities Portfolio	The major components of our AFS investment securities portfolio at June 30, 2021 and December 31, 2020 are as follows: June 30, 2021 (Dollars in millions) Amortized Unrealized Unrealized Carrying AFS securities, at fair value: U.S. Treasury securities $ 6,051 $ 189 $ (5) $ 6,235 U.S. agency debentures 84 — (3) 81 Foreign government debt securities 15 — — 15 Residential MBS: Agency-issued MBS 11,606 80 (124) 11,562 Agency-issued CMO—fixed rate 4,497 17 (90) 4,424 Agency-issued CMBS 1,523 44 (8) 1,559 Total AFS securities $ 23,776 $ 330 $ (230) $ 23,876 December 31, 2020 (Dollars in millions) Amortized Unrealized Unrealized Carrying AFS securities, at fair value: U.S. Treasury securities $ 4,198 $ 272 $ — $ 4,470 U.S. agency debentures 234 4 (1) 237 Foreign government debt securities 24 — — 24 Residential MBS: Agency-issued MBS 13,271 233 (1) 13,503 Agency-issued CMO—fixed rate 8,077 40 (10) 8,107 Agency-issued CMBS 4,441 134 (3) 4,572 Total AFS securities $ 30,245 $ 683 $ (15) $ 30,913
Activity of Available-for-Sale Securities	The following table summarizes sale activity of AFS securities during the three and six months ended June 30, 2021 and 2020 as recorded in the line item “Gains on investment securities, net," a component of noninterest income: For the three and six months ended June 30, 2021 and three months ended June 30, 2020 we did not have any sales proceeds, gross unrealized gains, or gross unrealized losses from our AFS securities portfolio. Three months ended June 30, Six months ended June 30, (Dollars in millions) 2021 2020 2021 2020 Sales proceeds $ — $ — $ — $ 2,654 Net realized gains and losses: Gross realized gains $ — $ — $ — $ 61 Gross realized losses — — — — Net realized gains $ — $ — $ — $ 61
Summary of Unrealized Losses on Available for Sale Securities	The following tables summarize our AFS securities in an unrealized loss position for which an ACL has not been recorded and summarized into categories of less than 12 months, or 12 months or longer, as of June 30, 2021 and December 31, 2020: June 30, 2021 Less than 12 months 12 months or longer (1) Total (Dollars in millions) Fair Value of Unrealized Fair Value of Unrealized Fair Value of Unrealized AFS securities: U.S. Treasury securities $ 2,218 $ (5) $ — $ — $ 2,218 $ (5) U.S. agency debentures 81 (3) — — 81 (3) Residential MBS: Agency-issued MBS 8,268 (124) — — 8,268 (124) Agency-issued CMO —fixed rate 2,832 (89) 76 (1) 2,908 (90) Agency-issued CMBS 651 (8) — — 651 (8) Total AFS securities (1) $ 14,050 $ (229) $ 76 $ (1) $ 14,126 $ (230) (1) As of June 30, 2021, we identified a total of 344 investments that were in unrealized loss positions with 2 investments in an unrealized loss position for a period of time greater than 12 months. Based on our analysis of the securities in an unrealized loss position as of June 30, 2021, the decline in value is unrelated to credit loss and is related to changes in market interest rates since purchase and therefore changes in value for securities are included in other comprehensive income. Market valuations and credit loss analyses on assets in the AFS securities portfolio are reviewed and monitored on a quarterly basis. As of June 30, 2021, we do not intend to sell any of our securities in an unrealized loss position prior to recovery of our amortized cost basis, and it is more likely than not that we will not be required to sell any of our securities prior to recovery of our amortized cost basis. None of the investments in our AFS securities portfolio were past due as of June 30, 2021. December 31, 2020 Less than 12 months 12 months or longer Total (Dollars in millions) Fair Value of Unrealized Fair Value of Unrealized Fair Value of Unrealized AFS securities: U.S. Treasury securities (1) $ 60 $ — $ — $ — $ 60 $ — U.S. agency debentures 133 (1) — — 133 (1) Residential MBS: Agency-issued MBS 904 (1) — — 904 (1) Agency-issued CMO—fixed rate 2,199 (10) — — 2,199 (10) Agency-issued CMBS 989 (3) — — 989 (3) Total AFS securities (2) $ 4,285 $ (15) $ — $ — $ 4,285 $ (15) (1) At December 31, 2020, gross unrealized losses totaled less than $1 million for U.S. Treasury AFS securities with a loss duration of less than less than 12 months. (2) As of December 31, 2020, we identified a total of 93 investments that were in unrealized loss positions, of which no investments are in an unrealized loss position for a period of time greater than 12 months. None of the investments in our AFS securities portfolio were past due as of December 31, 2020.
Summary of Remaining Contractual Principal Maturities and Fully Taxable Equivalent Yields on Securities	The following table summarizes the fixed income securities, carried at fair value, classified as AFS as of June 30, 2021 by the remaining contractual principal maturities. For U.S. Treasury securities, U.S. agency debentures and foreign government debt securities, the expected maturity is the actual contractual maturity of the notes. Expected maturities for MBS may differ significantly from their contractual maturities because mortgage borrowers have the right to prepay outstanding loan obligations with or without penalties. MBS classified as AFS typically have original contractual maturities from 10 to 30 years whereas expected average lives of these securities tend to be significantly shorter and vary based upon structure and prepayments in lower interest rate environments. June 30, 2021 (Dollars in millions) Total One Year After One After Five After U.S. Treasury securities $ 6,235 $ 41 $ 6,037 $ 157 $ — U.S. agency debentures 81 — — 81 — Foreign government debt securities 15 15 — — — Residential MBS: Agency-issued MBS 11,562 — — — 11,562 Agency-issued CMO—fixed rate 4,424 — — — 4,424 Agency-issued CMBS 1,559 — — 1,559 — Total $ 23,876 $ 56 $ 6,037 $ 1,797 $ 15,986 The following table summarizes the remaining contractual principal maturities on fixed income investment securities classified as HTM as of June 30, 2021. For U.S. agency debentures, the expected maturity is the actual contractual maturity of the notes. Expected remaining maturities for certain U.S. agency debentures may occur earlier than their contractual maturities because the note issuers have the right to call outstanding amounts ahead of their contractual maturity. Expected maturities for MBS may differ significantly from their contractual maturities because mortgage borrowers have the right to prepay outstanding loan obligations with or without penalties. MBS classified as HTM typically have original contractual maturities from 10 to 30 years whereas expected average lives of these securities tend to be significantly shorter and vary based upon structure and prepayments in lower interest rate environments; however, we expect to collect substantially all of the recorded investment on these securities. June 30, 2021 Total One Year After One Year to After Five Years to After (Dollars in millions) Amortized Cost Fair Value Amortized Cost Fair Value Amortized Cost Fair Value Amortized Cost Fair Value Amortized Cost Fair Value U.S. agency debentures $ 552 $ 571 $ 4 $ 4 $ 141 $ 146 $ 407 $ 421 $ — $ — Residential MBS: Agency-issued MBS 36,724 36,616 3 4 9 9 449 465 36,263 36,138 Agency-issued CMO — fixed rate 4,474 4,480 — — 5 5 404 413 4,065 4,062 Agency-issued CMO — variable rate 117 118 — — — — — — 117 118 Agency-issued CMBS 12,492 12,507 — — — — 535 554 11,957 11,953 Municipal bonds and notes 5,265 5,438 61 61 113 118 833 881 4,258 4,378 Corporate bonds 373 377 — — — — 373 377 — — Total $ 59,997 $ 60,107 $ 68 $ 69 $ 268 $ 278 $ 3,001 $ 3,111 $ 56,660 $ 56,649
Held-to-maturity Securities	The components of our HTM investment securities portfolio at June 30, 2021 and December 31, 2020 are as follows: June 30, 2021 (Dollars in millions) Amortized Unrealized Unrealized Fair Value ACL HTM securities, at cost: U.S. agency debentures (1) $ 552 $ 19 $ — $ 571 $ — Residential MBS: Agency-issued MBS 36,724 194 (302) 36,616 — Agency-issued CMO—fixed rate 4,474 29 (23) 4,480 — Agency-issued CMO—variable rate 117 1 — 118 — Agency-issued CMBS 12,492 76 (61) 12,507 — Municipal bonds and notes 5,265 189 (16) 5,438 — Corporate bonds 373 4 — 377 5 Total HTM securities $ 59,997 $ 512 $ (402) $ 60,107 $ 5 (1) Consists of pools of Small Business Investment Company debentures issued and guaranteed by the U.S. Small Business Administration, an independent agency of the United States. December 31, 2020 (Dollars in millions) Amortized Unrealized Unrealized Fair Value ACL HTM securities, at amortized cost: U.S. agency debentures (1) $ 402 $ 19 $ — $ 421 $ — Residential MBS: Agency-issued MBS 7,740 240 (2) 7,978 — Agency-issued CMO—fixed rate 1,735 23 — 1,758 — Agency-issued CMO—variable rate 137 1 — 138 — Agency-issued CMBS 2,943 124 — 3,067 — Municipal bonds and notes 3,635 221 (1) 3,855 — Total HTM securities $ 16,592 $ 628 $ (3) $ 17,217 $ — (1) Consists of pools of Small Business Investment Company debentures issued and guaranteed by the U.S. Small Business Administration, an independent agency of the United States.
Debt Securities, Held-to-maturity, Credit Quality Indicator	On a quarterly basis, management monitors the credit quality for HTM securities through the use of standard credit ratings. The following table summarizes our amortized cost of HTM securities aggregated by credit quality indicator at June 30, 2021 and December 31, 2020: (Dollars in millions) June 30, 2021 December 31, 2020 Municipal bonds and notes: Aaa $ 2,680 $ 2,070 Aa1 1,619 1,145 Aa2 802 420 Aa3 152 — A1 12 — Total municipal bonds and notes $ 5,265 $ 3,635 Corporate bonds: Aa1 $ 10 $ — Aa2 28 — Aa3 24 — A1 158 — A2 153 — Total corporate bonds $ 373 $ —
Schedule of Nonmarketable and Other Securities	The major components of our non-marketable and other equity securities portfolio at June 30, 2021 and December 31, 2020 are as follows: (Dollars in millions) June 30, 2021 December 31, 2020 Non-marketable and other equity securities: Non-marketable securities (fair value accounting): Consolidated venture capital and private equity fund investments (1) $ 108 $ 89 Unconsolidated venture capital and private equity fund investments (2) 187 185 Other investments without a readily determinable fair value (3) 79 61 Other equity securities in public companies (fair value accounting) (4) 107 281 Non-marketable securities (equity method accounting) (5): Venture capital and private equity fund investments 544 362 Debt funds 7 5 Other investments 215 203 Investments in qualified affordable housing projects, net (6) 696 616 Total non-marketable and other equity securities $ 1,943 $ 1,802 (1) The following table shows the amounts of venture capital and private equity fund investments held by the following consolidated funds and our ownership percentage of each fund at June 30, 2021 and December 31, 2020 (fair value accounting): June 30, 2021 December 31, 2020 (Dollars in millions) Amount Ownership % Amount Ownership % Strategic Investors Fund, LP $ 5 12.6 % $ 5 12.6 % Capital Preferred Return Fund, LP 51 20.0 50 20.0 Growth Partners, LP 52 33.0 34 33.0 Total consolidated venture capital and private equity fund investments $ 108 $ 89 (2) The carrying value represents investments in 157 and 162 funds (primarily venture capital funds) at June 30, 2021 and December 31, 2020, respectively, where our ownership interest is typically less than 5% of the voting interests of each such fund and in which we do not have the ability to exercise significant influence over the partnerships operating activities and financial policies. We carry our unconsolidated venture capital and private equity fund investments at fair value based on the fund investments' net asset values per share as obtained from the general partners of the investments. For each fund investment, we adjust the net asset value per share for differences between our measurement date and the date of the fund investment’s net asset value by using the most recently available financial information from the investee general partner, for example March 31 st for our June 30 th consolidated financial statements, adjusted for any contributions paid, distributions received from the investment, and significant fund transactions or market events during the reporting period. (3) These investments include direct equity investments in private companies. The carrying value is based on the price at which the investment was acquired plus or minus changes resulting from observable price changes in orderly transactions for identical or similar investments. We consider a range of factors when adjusting the fair value of these investments, including, but not limited to, the term and nature of the investment, local market conditions, values for comparable securities, current and projected operating performance, exit strategies, financing transactions subsequent to the acquisition of the investment and a discount for certain investments that have lock-up restrictions or other features that indicate a discount to fair value is warranted. The following table shows the changes to the carrying amount of other investments without a readily determinable fair value for the six months ended June 30, 2021: (Dollars in millions) Six months ended June 30, 2021 Cumulative Adjustments Measurement alternative: Carrying value at June 30, 2021 $ 79 Carrying value adjustments: Impairment $ — $ (1) Upward changes for observable prices 12 16 Downward changes for observable prices (2) (6) (4) Investments classified as other equity securities (fair value accounting) represent shares held in public companies as a result of exercising public equity warrant assets and direct equity investments in public companies held by our consolidated funds. Changes in equity securities measured at fair value are recognized through net income. (5) The following table shows the carrying value and our ownership percentage of each investment at June 30, 2021 and December 31, 2020 (equity method accounting): June 30, 2021 December 31, 2020 (Dollars in millions) Amount Ownership % Amount Ownership % Venture capital and private equity fund investments: Strategic Investors Fund II, LP $ 4 8.6 % $ 4 8.6 % Strategic Investors Fund III, LP 28 5.9 16 5.9 Strategic Investors Fund IV, LP 36 5.0 25 5.0 Strategic Investors Fund V funds 87 Various 67 Various CP II, LP (i) 8 5.1 8 5.1 Other venture capital and private equity fund investments 381 Various 242 Various Total venture capital and private equity fund investments $ 544 $ 362 Debt funds: Gold Hill Capital 2008, LP (ii) $ 5 15.5 % $ 4 15.5 % Other debt funds 2 Various 1 Various Total debt funds $ 7 $ 5 Other investments: SPD Silicon Valley Bank Co., Ltd. $ 115 50.0 % $ 115 50.0 % Other investments 100 Various 88 Various Total other investments $ 215 $ 203 (i) Our ownership includes direct ownership interest of 1.3 percent and indirect ownership interest of 3.8 percent through our investments in Strategic Investors Fund II, LP. (ii) Our ownership includes direct ownership interest of 11.5 percent in the fund and an indirect interest in the fund through our investment in Gold Hill Capital 2008, LLC of 4.0 percent. (6) The following table presents the balances of our investments in qualified affordable housing projects and related unfunded commitments included as a component of “Other liabilities” on our consolidated balance sheets at June 30, 2021 and December 31, 2020: (Dollars in millions) June 30, 2021 December 31, 2020 Investments in qualified affordable housing projects, net $ 696 $ 616 Other liabilities 415 370 The following table presents other information relating to our investments in qualified affordable housing projects for the three months ended June 30, 2021 and 2020: Three months ended June 30, Six months ended June 30, (Dollars in millions) 2021 2020 2021 2020 Tax credits and other tax benefits recognized $ 26 $ 20 $ 54 $ 31 Amortization expense included in provision for income taxes (i) 14 10 30 22 (i) All investments are amortized using the proportional amortization method and amortization expense is included in the provision for income taxes.
Gain Loss On Investment Securities	The following table presents the net gains and losses on non-marketable and other equity securities for the three and six months ended June 30, 2021 and 2020 as recorded in the line item “Gains on investment securities, net," a component of noninterest income: Three months ended June 30, Six months ended June 30, (Dollars in millions) June 30, 2021 June 30, 2020 June 30, 2021 June 30, 2020 Net gains (losses) on non-marketable and other equity securities: Non-marketable securities (fair value accounting): Consolidated venture capital and private equity fund investments $ 19 $ 1 $ 36 $ 4 Unconsolidated venture capital and private equity fund investments 15 (2) 32 (1) Other investments without a readily determinable fair value (1) (1) 12 (4) Other equity securities in public companies (fair value accounting) 18 13 92 6 Non-marketable securities (equity method accounting): Venture capital and private equity fund investments 250 26 295 18 Debt funds 1 — 2 — Other investments 3 (2) 3 (3) Total net gains on non-marketable and other equity securities $ 305 $ 35 $ 472 $ 20 Less: realized net gains on sales of non-marketable and other equity securities 61 — 127 — Net gains on non-marketable and other equity securities still held $ 244 $ 35 $ 345 $ 20

Loans, Allowance for Loan Los_2

Loans, Allowance for Loan Losses and Allowance for Unfunded Credit Commitments (Tables)	6 Months Ended
	Jun. 30, 2021
Receivables [Abstract]
Loans and Allowance for Loan Losses	The composition of loans at amortized cost basis broken out by risk-based segment at June 30, 2021 and December 31, 2020 is presented in the following table: (Dollars in millions) June 30, 2021 December 31, 2020 Global fund banking $ 30,630 $ 25,543 Investor dependent: Early stage 1,565 1,486 Mid stage 1,708 1,565 Later stage 2,055 1,921 Total investor dependent 5,328 4,972 Cash flow dependent: Sponsor led buyout 1,917 1,989 Other 2,926 2,945 Total cash flow dependent 4,843 4,934 Private bank (4) 5,297 4,901 Balance sheet dependent 2,804 2,191 Premium wine (4) 1,002 1,053 Other (4) 7 28 SBA loans 843 1,559 Total loans (1) (2) (3) $ 50,754 $ 45,181 ACL (396) (448) Net loans $ 50,358 $ 44,733 (1) Total loans at amortized cost is net of unearned income of $248 million and $226 million at June 30, 2021 and December 31, 2020, respectively. (2) Included within our total loan portfolio are credit card loans of $509 million and $400 million at June 30, 2021 and December 31, 2020, respectively. (3) Included within our total loan portfolio are construction loans of $84 million and $118 million at June 30, 2021 and December 31, 2020, respectively. (4) Of our total loans, the table below includes those secured by real estate at amortized cost at June 30, 2021 and December 31, 2020 and were comprised of the following: (Dollars in millions) June 30, 2021 December 31, 2020 Real estate secured loans: Private bank: Loans for personal residence $ 3,773 $ 3,392 Loans to eligible employees 447 481 Home equity lines of credit 61 43 Other 131 143 Total private bank loans secured by real estate $ 4,412 $ 4,059 Premium wine 807 824 Other 34 57 Total real estate secured loans $ 5,253 $ 4,940
Credit Quality Indicators, Broken out by Portfolio Segment and Class of Financing Receivables	The following tables summarize the credit quality indicators, broken out by risk-based segment and vintage year, as of June 30, 2021 and December 31, 2020: Term Loans by Origination Year June 30, 2021 (Dollars in millions) 2021 2020 2019 2018 2017 Prior Revolving Loans Revolving Loans Converted to Term Loans Unallocated (1) Total Global fund banking: Risk rating: Pass $ 567 $ 165 $ 42 $ 55 $ 20 $ 7 $ 29,766 $ 1 $ — $ 30,623 Criticized — — — — — — 5 2 — 7 Nonperforming — — — — — — — — — — Total global fund banking $ 567 $ 165 $ 42 $ 55 $ 20 $ 7 $ 29,771 $ 3 $ — $ 30,630 Investor dependent: Early stage: Risk rating: Pass $ 392 $ 520 $ 237 $ 53 $ 10 $ — $ 144 $ 1 $ — $ 1,357 Criticized 8 93 51 14 2 5 24 — — 197 Nonperforming — 1 5 4 — — 1 — — 11 Total early stage $ 400 $ 614 $ 293 $ 71 $ 12 $ 5 $ 169 $ 1 $ — $ 1,565 Mid stage: Risk rating: Pass $ 505 $ 654 $ 215 $ 106 $ 16 $ 2 $ 100 $ 5 $ — $ 1,603 Criticized 8 49 9 13 3 — 18 — — 100 Nonperforming — — 2 3 — — — — — 5 Total mid stage $ 513 $ 703 $ 226 $ 122 $ 19 $ 2 $ 118 $ 5 $ — $ 1,708 Later stage: Risk rating: Pass $ 576 $ 829 $ 290 $ 63 $ 10 $ 2 $ 195 $ — $ — $ 1,965 Criticized 6 29 16 3 2 — 13 — — 69 Nonperforming — 15 — — — — 6 — — 21 Total later stage $ 582 $ 873 $ 306 $ 66 $ 12 $ 2 $ 214 $ — $ — $ 2,055 Total investor dependent $ 1,495 $ 2,190 $ 825 $ 259 $ 43 $ 9 $ 501 $ 6 $ — $ 5,328 Cash flow dependent: Sponsor led buyout: Risk rating: Pass $ 588 $ 548 $ 341 $ 141 $ 120 $ 4 $ 44 $ — $ — $ 1,786 Criticized — 14 15 40 10 13 5 — — 97 Nonperforming — — 12 10 7 — 5 — — 34 Total sponsor led buyout $ 588 $ 562 $ 368 $ 191 $ 137 $ 17 $ 54 $ — $ — $ 1,917 Other Risk rating: Pass $ 540 $ 720 $ 332 $ 137 $ 108 $ — $ 868 $ — $ — $ 2,705 Criticized — 10 35 37 — — 138 — — 220 Nonperforming — — — — — — 1 — — 1 Total other $ 540 $ 730 $ 367 $ 174 $ 108 $ — $ 1,007 $ — $ — $ 2,926 Total cash flow dependent $ 1,128 $ 1,292 $ 735 $ 365 $ 245 $ 17 $ 1,061 $ — $ — $ 4,843 Private bank: Risk rating: Pass $ 1,047 $ 1,748 $ 980 $ 321 $ 243 $ 513 $ 406 $ 1 $ — $ 5,259 Criticized — 1 8 3 4 11 4 — — 31 Nonperforming — — — 6 — 1 — — — 7 Total private bank $ 1,047 $ 1,749 $ 988 $ 330 $ 247 $ 525 $ 410 $ 1 $ — $ 5,297 Balance sheet dependent: Risk rating: Pass $ 657 $ 728 $ 130 $ 158 $ 31 $ — $ 928 $ — $ — $ 2,632 Criticized — 65 42 — — — 64 1 — 172 Nonperforming — — — — — — — — — — Total balance sheet dependent $ 657 $ 793 $ 172 $ 158 $ 31 $ — $ 992 $ 1 $ — $ 2,804 Premium wine: Risk rating: Pass $ 52 $ 128 $ 195 $ 72 $ 74 $ 210 $ 112 $ 36 $ — $ 879 Criticized 2 15 12 16 10 47 21 — — 123 Nonperforming — — — — — — — — — — Total Premium wine $ 54 $ 143 $ 207 $ 88 $ 84 $ 257 $ 133 $ 36 $ — $ 1,002 Other: Risk rating: Pass $ — $ 17 $ 13 $ — $ 1 $ — $ 3 $ — $ (27) $ 7 Criticized — — — — — — — — — — Nonperforming — — — — — — — — — — Total other $ — $ 17 $ 13 $ — $ 1 $ — $ 3 $ — $ (27) $ 7 SBA loans: Risk rating: Pass $ 401 $ 368 $ — $ — $ — $ — $ — $ — $ — $ 769 Criticized 46 28 — — — — — — — 74 Nonperforming — — — — — — — — — — Total SBA loans $ 447 $ 396 $ — $ — $ — $ — $ — $ — $ — $ 843 Total loans $ 5,395 $ 6,745 $ 2,982 $ 1,255 $ 671 $ 815 $ 32,871 $ 47 $ (27) $ 50,754 (1) These amounts consist of fees and clearing items that have not yet been allocated at the loan level. Term Loans by Origination Year December 31, 2020 (Dollars in millions) 2020 2019 2018 2017 2016 Prior Revolving Loans Revolving Loans Converted to Term Loans Total Global fund banking: Risk rating: Pass $ 440 $ 48 $ 69 $ 23 $ 2 $ 6 $ 24,947 $ 2 $ 25,537 Criticized — — — — — — — 6 6 Nonperforming — — — — — — — — — Total global fund banking $ 440 $ 48 $ 69 $ 23 $ 2 $ 6 $ 24,947 $ 8 $ 25,543 Investor dependent: Early stage: Risk rating: Pass $ 667 $ 370 $ 121 $ 32 $ 1 $ 1 $ 96 $ 1 $ 1,289 Criticized 47 73 26 10 4 — 19 — 179 Nonperforming 2 9 5 1 — — 1 — 18 Total early stage $ 716 $ 452 $ 152 $ 43 $ 5 $ 1 $ 116 $ 1 $ 1,486 Mid stage: Risk rating: Pass $ 840 $ 302 $ 146 $ 23 $ 5 $ 1 $ 101 $ 3 $ 1,421 Criticized 43 48 26 8 — 5 10 — 140 Nonperforming — 1 — 3 — — — — 4 Total mid stage $ 883 $ 351 $ 172 $ 34 $ 5 $ 6 $ 111 $ 3 $ 1,565 Later stage: Risk rating: Pass $ 906 $ 394 $ 170 $ 38 $ — $ 8 $ 224 $ 5 $ 1,745 Criticized 22 55 30 1 — 2 37 — 147 Nonperforming 17 2 4 — — — 6 — 29 Total later stage $ 945 $ 451 $ 204 $ 39 $ — $ 10 $ 267 $ 5 $ 1,921 Total investor dependent $ 2,544 $ 1,254 $ 528 $ 116 $ 10 $ 17 $ 494 $ 9 $ 4,972 Cash flow dependent: Sponsor led buyout: Risk rating: Pass $ 791 $ 452 $ 274 $ 167 $ 37 $ — $ 75 $ — $ 1,796 Criticized — 70 39 22 13 — 9 — 153 Nonperforming — 12 16 7 — — 5 — 40 Total sponsor led buyout $ 791 $ 534 $ 329 $ 196 $ 50 $ — $ 89 $ — $ 1,989 Other Risk rating: Pass $ 880 $ 513 $ 179 $ 133 $ 39 $ — $ 933 $ — $ 2,677 Criticized 19 68 34 4 — — 137 — 262 Nonperforming — — 5 — — — 1 — 6 Total other $ 899 $ 581 $ 218 $ 137 $ 39 $ — $ 1,071 $ — $ 2,945 Total cash flow dependent $ 1,690 $ 1,115 $ 547 $ 333 $ 89 $ — $ 1,160 $ — $ 4,934 Private bank: Risk rating: Pass $ 1,878 $ 1,153 $ 394 $ 353 $ 295 $ 406 $ 382 $ 1 $ 4,862 Criticized 3 10 5 1 5 8 1 — 33 Nonperforming — — 3 — — 2 1 — 6 Total private bank $ 1,881 $ 1,163 $ 402 $ 354 $ 300 $ 416 $ 384 $ 1 $ 4,901 Balance sheet dependent: Risk rating: Pass $ 838 $ 190 $ 199 $ 19 $ — $ — $ 858 $ 1 $ 2,105 Criticized 56 4 — — — — 26 — 86 Nonperforming — — — — — — — — — Total balance sheet dependent $ 894 $ 194 $ 199 $ 19 $ — $ — $ 884 $ 1 $ 2,191 Premium wine: Risk rating: Pass $ 127 $ 194 $ 71 $ 79 $ 115 $ 154 $ 135 $ 36 $ 911 Criticized 18 24 36 10 13 6 34 — 141 Nonperforming — — — — 1 — — — 1 Total Premium wine $ 145 $ 218 $ 107 $ 89 $ 129 $ 160 $ 169 $ 36 $ 1,053 Other: Risk rating: Pass $ — $ 16 $ 11 $ — $ — $ 1 $ — $ — $ 28 Criticized — — — — — — — — — Nonperforming — — — — — — — — — Total other $ — $ 16 $ 11 $ — $ — $ 1 $ — $ — $ 28 SBA loans: Risk rating: Pass $ 1,456 $ — $ — $ — $ — $ — $ — $ — $ 1,456 Criticized 103 — — — — — — — 103 Nonperforming — — — — — — — — — Total SBA loans $ 1,559 $ — $ — $ — $ — $ — $ — $ — $ 1,559 Total loans $ 9,153 $ 4,008 $ 1,863 $ 934 $ 530 $ 600 $ 28,038 $ 55 $ 45,181
Activity in Allowance for Loan Losses Broken out by Portfolio Segment	The following tables summarize the activity relating to our ACL for loans for the three and six months ended June 30, 2021 and 2020, broken out by portfolio segment: Three months ended June 30, 2021 Beginning Balance March 31, 2021 Charge-offs Recoveries Provision (Reduction) for Credit Losses Ending Balance June 30, 2021 (Dollars in millions) Global fund banking $ 60 $ — $ — $ 6 $ 66 Investor dependent: Early stage 62 (5) 2 (4) 55 Growth stage 106 (1) 1 (3) 103 Total investor dependent 168 (6) 3 (7) 158 Cash flow and balance sheet dependent 112 (7) — 14 119 Private bank 44 (2) — 5 47 Premium wine and other 8 — — (2) 6 Total ACL $ 392 $ (15) $ 3 $ 16 $ 396 Three months ended June 30, 2020 Beginning Balance March 31, 2020 Charge-offs Recoveries Provision (Reduction) for Credit Losses Ending Balance June 30, 2020 (Dollars in millions) Global fund banking $ 57 $ — $ — $ (3) $ 54 Investor dependent: Early stage 127 (2) 3 20 148 Growth stage 149 (4) 1 (2) 144 Total investor dependent 276 (6) 4 18 292 Cash flow and balance sheet dependent 104 (8) — 27 123 Private bank 88 (1) — 4 91 Premium wine and other 24 — — 2 26 SBA loans — — — 4 4 Total ACL $ 549 $ (15) $ 4 $ 52 $ 590 Six months ended June 30, 2021 Beginning Balance December 31, 2020 Charge-offs Recoveries Provision (Reduction) for Credit Losses Ending Balance June 30, 2021 (Dollars in millions) Global fund banking $ 46 $ (80) $ — $ 100 $ 66 Investor dependent: Early stage 86 (19) 3 (15) 55 Growth stage 127 (1) 5 (28) 103 Total investor dependent 213 (20) 8 (43) 158 Cash flow and balance sheet dependent 125 (7) — 1 119 Private bank 53 (2) — (4) 47 Premium wine and other 9 (1) — (2) 6 SBA loans 2 — — (2) — Total ACL $ 448 $ (110) $ 8 $ 50 $ 396 Six months ended June 30, 2020 Beginning Balance December 31, 2019 Impact of adopting ASC 326 Charge-offs Recoveries Provision for Credit Losses Foreign Currency Translation Adjustments Ending Balance June 30, 2020 (Dollars in millions) Global fund banking $ 107 $ (70) $ — $ — $ 17 $ — $ 54 Investor dependent: Early stage 26 40 (12) 4 91 (1) 148 Growth stage 56 32 (27) 5 79 (1) 144 Total investor dependent 82 72 (39) 9 170 (2) 292 Cash flow and balance sheet dependent 81 (1) (11) 3 51 — 123 Private bank 22 12 (2) — 59 — 91 Premium wine and other 13 12 — — — 1 26 SBA loans — — — — 4 — 4 Total ACL $ 305 $ 25 $ (52) $ 12 $ 301 $ (1) $ 590 The following table summarizes the activity relating to our ACL for unfunded credit commitments for the three and six months ended June 30, 2021 and 2020: Three months ended June 30, Six months ended June 30, (Dollars in millions) 2021 2020 2021 2020 ACL: unfunded credit commitments, beginning balance $ 105 $ 85 $ 121 $ 67 Impact of adopting ASC 326 — — — 23 Provision of credit losses 15 14 (1) 9 ACL: unfunded credit commitments, ending balance (1) $ 120 $ 99 $ 120 $ 99 (1) The “ACL: unfunded credit commitments” is included as a component of “other liabilities” on our unaudited interim consolidated balance sheets. See Note 13 — “Off-Balance Sheet Arrangements, Guarantees and Other Commitments” of the “Notes to Interim Consolidated Financial Statements (unaudited)” under Part I, Item 1 of this report for additional disclosures related to our commitments to extend credit.
Financing Receivable, Past Due	The following table summarizes the aging of our loans broken out by risk-based segment as of June 30, 2021 and December 31, 2020: (Dollars in millions) 30 - 59 60 - 89 Equal to or Greater Total Past Current Total Loans Past Due June 30, 2021: Global fund banking $ — $ — $ — $ — $ 30,630 $ 30,630 $ — Investor dependent: Early stage 1 — 1 2 1,563 1,565 — Mid stage — 2 — 2 1,706 1,708 — Later stage 1 — — 1 2,054 2,055 — Total investor dependent 2 2 1 5 5,323 5,328 — Cash flow dependent: Sponsor led buyout — — — — 1,917 1,917 — Other 5 — — 5 2,921 2,926 — Total cash flow dependent 5 — — 5 4,838 4,843 — Private bank — — 2 2 5,295 5,297 2 Balance sheet dependent 1 3 — 4 2,800 2,804 — Premium wine 2 — — 2 1,000 1,002 — Other — — — — 7 7 — SBA loans — 1 1 2 841 843 1 Total loans $ 10 $ 6 $ 4 $ 20 $ 50,734 $ 50,754 $ 3 December 31, 2020: Global fund banking $ 28 $ — $ — $ 28 $ 25,515 $ 25,543 $ — Investor dependent: Early stage 6 2 — 8 1,478 1,486 — Mid stage 6 — 1 7 1,558 1,565 — Later stage 5 — — 5 1,916 1,921 — Total investor dependent 17 2 1 20 4,952 4,972 — Cash flow dependent Sponsor led buyout — — — — 1,989 1,989 — Other 6 — — 6 2,939 2,945 — Total cash flow dependent 6 — — 6 4,928 4,934 — Private bank 4 4 — 8 4,893 4,901 — Balance sheet dependent 1 1 — 2 2,189 2,191 — Premium wine 3 — 1 4 1,049 1,053 — Other — — — — 28 28 — SBA loans — — — — 1,559 1,559 — Total loans $ 59 $ 7 $ 2 $ 68 $ 45,113 $ 45,181 $ —
Financing Receivable, Nonaccrual	The following table summarizes our nonaccrual loans with no allowance for credit loss at June 30, 2021 and December 31, 2020: June 30, 2021 December 31, 2020 (Dollars in millions) Nonaccrual Loans Nonaccrual Loans with no Allowance for Credit Loss Nonaccrual Loans Nonaccrual Loans with no Allowance for Credit Loss Investor dependent: Early stage $ 11 $ 3 $ 18 $ — Mid stage 5 — 4 3 Later stage 21 — 29 — Total investor dependent 37 3 51 3 Cash flow dependent: Sponsor led buyout 34 — 40 — Other 1 1 6 1 Total cash flow dependent 35 1 46 1 Private bank 7 2 6 3 Premium wine — — 1 1 Total nonaccrual loans $ 79 $ 6 $ 104 $ 8
Summary of Loans Modified in Troubled Debt Restructurings ("TDRs") by Risk-based Segment	The following table summarizes our loans modified in TDRs, broken out by risk-based segment, at June 30, 2021 and December 31, 2020: (Dollars in millions) June 30, 2021 December 31, 2020 Loans modified in TDRs: Investor dependent: Early stage $ 1 $ 7 Mid stage 5 4 Later stage 15 25 Total investor dependent 21 36 Cash flow dependent: Sponsor led buyout 34 22 Other 1 1 Total cash flow dependent 35 23 Private bank 3 — Premium wine 2 2 Total loans modified in TDRs $ 61 $ 61
Recorded Investment in Loans Modified in TDRs	The following table summarizes the recorded investment in loans modified in TDRs, broken out by risk-based segment, for modifications made during the three and six months ended June 30, 2021 and 2020: Three months ended June 30, Six months ended June 30, (Dollars in millions) 2021 2020 2021 2020 Loans modified in TDRs during the period: Investor dependent: Early stage $ 1 $ — $ 1 $ — Mid stage — 5 — 11 Later stage — 4 — 7 Total investor dependent 1 9 1 18 Cash flow dependent: Sponsor led buyout — — 13 — Other — 4 — 4 Total cash flow dependent — 4 13 4 Private bank 1 — 3 — Premium wine — 1 — 1 Total loans modified in TDRs during the period (1) $ 2 $ 14 $ 17 $ 23 (1) There were $6 million and $7 million of partial charge-offs for the three and six months ended June 30, 2021, respectively, and $5 million and $18 million of partial charge-offs for the three and six months ended June 30, 2020, respectively.
Troubled Debt Restructurings On Financing Receivables Subsequently Defaulted Table	The following table summarizes the recorded investment in loans modified in TDRs within the previous 12 months that subsequently defaulted during the three and six months ended June 30, 2021 and June 30, 2020: Three months ended June 30, Six months ended June 30, (Dollars in millions) 2021 2020 2021 2020 TDRs modified within the previous 12 months that defaulted during the period: Cash flow dependent: Sponsor led buyout $ — $ 10 $ — $ 10 Total cash flow dependent — 10 — 10 Total TDRs modified within the previous 12 months that defaulted in the period $ — $ 10 $ — $ 10

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets (Tables)	6 Months Ended
Goodwill and Other Intangible Assets (Tables)	Jun. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination	The components of net other intangible assets were as follows: June 30, 2021 December 31, 2020 (Dollars in millions) Gross Amount Accumulated Amortization Net Carrying Amount Gross Amount Accumulated Amortization Net Carrying Amount Other intangible assets: Customer relationships $ 42 $ 10 $ 32 $ 42 $ 8 $ 34 Other 36 11 25 36 9 27 Total other intangible assets $ 78 $ 21 $ 57 $ 78 $ 17 $ 61
Finite-lived Intangible Assets Amortization Expense	For the six months ended June 30, 2021, we recorded amortization expense of $4 million. Assuming no future impairments of other intangible assets or additional acquisitions or dispositions, the following table presents the Company's future expected amortization expense for other intangible assets that will continue to be amortized as of June 30, 2021: Years ended December 31, Other 2021 (excluding the six months ended June 30, 2021) $ 4 2022 8 2023 8 2024 8 2025 7 2026 and thereafter 22 Total future amortization expense $ 57

Short-Term Borrowings and Lon_2

Short-Term Borrowings and Long-Term Debt (Tables)	6 Months Ended
Short-Term Borrowings and Long-Term Debt (Tables)	Jun. 30, 2021
Debt Disclosure [Abstract]
Outstanding Short Term Borrowings and Long Term Debt	The following table represents outstanding short-term borrowings and long-term debt at June 30, 2021 and December 31, 2020: Carrying Value (Dollars in millions) Maturity Principal value at June 30, 2021 June 30, 2021 December 31, 2020 Short-term borrowings: Other short-term borrowings (1) $ 34 $ 34 $ 21 Total short-term borrowings $ 34 $ 21 Long-term debt: 3.50% Senior Notes January 29, 2025 $ 350 $ 349 $ 349 3.125% Senior Notes June 5, 2030 500 495 495 1.800% Senior Notes February 2, 2031 500 494 — 2.100% Senior Notes May 15, 2028 500 496 — Total long-term debt $ 1,834 $ 844 (1) Represents cash collateral received from certain counterparties in relation to market value exposures of derivative contracts in our favor.

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	6 Months Ended
Derivative Financial Instruments (Tables)	Jun. 30, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments	The following table summarizes the amortized cost basis of hedged assets that are designated and qualify as fair value hedges and the cumulative amount of fair value hedging adjustments included in the carrying value that have been recorded on our unaudited interim consolidated balance sheets as of June 30, 2021: June 30, 2021 (Dollars in millions) Amortized Cost Basis of the Hedged Assets Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Assets AFS securities (1) $ 21,817 $ 4 (1) These amounts include the amortized cost basis of closed portfolios used to designate hedging relationships in which the hedged item is the last layer expected to be remaining at the end of the hedging relationship. At June 30, 2021, the amortized cost basis of the closed portfolios used in these hedging relationships was $17.5 billion, the amounts of the designated hedged items was $8.8 billion and the cumulative basis adjustments associated with these hedging relationships was $6 million.
Total Notional or Contractual Amounts, Fair Value, Collateral and Net Exposure of Derivative Financial Instruments	The total notional or contractual amounts and fair value of our derivative financial instruments at June 30, 2021 and December 31, 2020 were as follows: June 30, 2021 December 31, 2020 Notional or Fair Value Notional or Fair Value (Dollars in millions) Derivative Assets (1) Derivative Liabilities (1) Derivative Assets (1) Derivative Liabilities (1) Derivatives designated as hedging instruments: Interest rate risks: Interest rate swaps $ 9,775 $ 16 $ — $ — $ — $ — Interest rate swaps 3,025 — 2 — — — Derivatives not designated as hedging instruments: Currency exchange risks: Foreign exchange forwards 616 10 — 68 — — Foreign exchange forwards 184 — 2 567 — 20 Other derivative instruments: Equity warrant assets 301 266 — 253 203 — Client foreign exchange forwards 11,234 165 — 8,026 215 — Client foreign exchange forwards 10,717 — 153 7,491 — 188 Client foreign currency options 233 2 — 98 2 — Client foreign currency options 233 — 2 98 — 2 Client interest rate derivatives 1,306 65 — 1,082 68 — Client interest rate derivatives (2) 1,483 — 59 1,251 — 27 Total derivatives not designated as hedging instruments 508 216 488 237 Total derivatives $ 524 $ 218 $ 488 $ 237 (1) Derivative assets and liabilities are included in "accrued interest receivable and other assets" and "other liabilities " , respectively, on our consolidated balance sheets. (2) The amount reported reflects reductions of approximately $6 million and $45 million of derivative liabilities at June 30, 2021 and December 31, 2020, respectively, reflecting variation margin treated as settlement of the related derivative fair values for legal and accounting purposes as required by central clearing houses.
Summary of Derivative Activity and Related Impact on Consolidated Statements of Income	A summary of our derivative activity and the related impact on our consolidated statements of income for the three and six months ended June 30, 2021 and 2020 is as follows: Three months ended June 30, Six months ended June 30, (Dollars in millions) Statement of income location 2021 2020 2021 2020 Derivatives designated as hedging instruments: Interest rate risks: Amounts reclassified from AOCI into income Interest income - loans $ 16 $ 16 $ 31 $ 18 Change in fair value of interest rate swaps hedging investment securities Interest income - investment securities taxable (14) — 4 — Change in fair value of hedged investment securities Interest income - investment securities taxable 4 — (13) — Net gains associated with interest rate risk derivatives $ 6 $ 16 $ 22 $ 18 Derivatives not designated as hedging instruments: Currency exchange risks: Gains (losses) on revaluations of internal foreign currency instruments, net Other noninterest income $ 7 $ 11 (21) $ 3 (Losses) gains on internal foreign exchange forward contracts, net Other noninterest income (6) (9) 21 (1) Net gains associated with internal currency risk $ 1 $ 2 $ — $ 2 Other derivative instruments: Gains (losses) on revaluations of client foreign currency instruments, net Other noninterest income $ 17 $ 5 $ 15 $ (3) (Losses) gains on client foreign exchange forward contracts, net Other noninterest income (12) (7) (10) 1 Net gains (losses) associated with client currency risk $ 5 $ (2) $ 5 $ (2) Net gains on equity warrant assets Gains on equity warrant assets, net $ 122 $ 27 $ 344 $ 40 Net (losses) gains on other derivatives Other noninterest income $ (2) $ — $ 2 $ (5)
Offsetting Assets	The following table summarizes our assets subject to enforceable master netting arrangements as of June 30, 2021 and December 31, 2020: Gross Amounts of Recognized Assets Gross Amounts offset in the Statement of Financial Position Net Amounts of Assets Presented in the Statement of Financial Position Gross Amounts Not Offset in the Statement of Financial Position but Subject to Master Netting Arrangements Net Amount (Dollars in millions) Financial Instruments Cash Collateral Received (1) June 30, 2021 Derivative assets: Interest rate swaps $ 16 $ — $ 16 $ (2) $ — $ 14 Foreign exchange forwards 175 — 175 (48) (31) 96 Foreign currency options 2 — 2 (1) — 1 Client interest rate derivatives 65 — 65 (62) (3) — Total derivative assets 258 — 258 (113) (34) 111 Reverse repurchase, securities borrowing, and similar arrangements 762 — 762 (762) — — Total $ 1,020 $ — $ 1,020 $ (875) $ (34) $ 111 December 31, 2020 Derivative assets: Interest rate swaps $ — $ — $ — $ — $ — $ — Foreign exchange forwards 215 — 215 (76) (21) 118 Foreign currency options 2 — 2 (1) — 1 Client interest rate derivatives 68 — 68 (68) — — Total derivative assets 285 — 285 (145) (21) 119 Reverse repurchase, securities borrowing, and similar arrangements 227 — 227 (227) — — Total $ 512 $ — $ 512 $ (372) $ (21) $ 119 (1) Cash collateral received from our counterparties in relation to market value exposures of derivative contracts in our favor is recorded as a component of “short-term borrowings” on our consolidated balance sheets.
Offsetting Liabilities	The following table summarizes our liabilities subject to enforceable master netting arrangements as of June 30, 2021 and December 31, 2020: Gross Amounts of Recognized Liabilities Gross Amounts offset in the Statement of Financial Position Net Amounts of Liabilities Presented in the Statement of Financial Position Gross Amounts Not Offset in the Statement of Financial Position but Subject to Master Netting Arrangements Net Amount (Dollars in millions) Financial Instruments Cash Collateral Pledged (1) June 30, 2021 Derivative liabilities: Interest rate swaps $ 2 $ — $ 2 $ (2) $ — $ — Foreign exchange forwards 155 — 155 (54) (42) 59 Foreign currency options 2 — 2 — (1) 1 Client interest rate derivatives 59 — 59 (37) (21) 1 Total derivative liabilities 218 — 218 (93) (64) 61 Repurchase, securities lending, and similar arrangements — — — — — — Total $ 218 $ — $ 218 $ (93) $ (64) $ 61 December 31, 2020 Derivative liabilities: Interest rate swaps $ — $ — $ — $ — $ — $ — Foreign exchange forwards 208 — 208 (84) (45) 79 Foreign currency options 2 — 2 (1) — 1 Client interest rate derivatives 27 — 27 — (26) 1 Total derivative liabilities 237 — 237 (85) (71) 81 Repurchase, securities lending, and similar arrangements — — — — — — Total $ 237 $ — $ 237 $ (85) $ (71) $ 81 (1) Cash collateral pledged to our counterparties in relation to market value exposures of derivative contracts in a liability position and repurchase agreements are recorded as a component of “cash and cash equivalents " on our consolidated balance sheets.

Noninterest Income (Tables)

Noninterest Income (Tables)	6 Months Ended
Noninterest Income (Tables)	Jun. 30, 2021
Other Income and Expenses [Abstract]
Summary of Noninterest Income	Included below is a summary of noninterest income for the three and six months ended June 30, 2021 and 2020: Three months ended June 30, Six months ended June 30, (Dollars in millions) 2021 2020 2021 2020 Noninterest income: Gains on investment securities, net $ 305 $ 35 $ 472 $ 81 Gains on equity warrant assets, net 122 27 344 40 Client investment fees 15 32 35 75 Foreign exchange fees 67 36 124 84 Credit card fees 31 21 59 50 Deposit service charges 28 21 53 45 Lending related fees 18 11 34 24 Letters of credit and standby letters of credit fees 13 11 26 23 Investment banking revenue 103 142 245 188 Commissions 17 17 41 33 Other 42 16 72 27 Total noninterest income $ 761 $ 369 $ 1,505 $ 670
Components of Gains and Losses (Realized and Unrealized) on Investment Securities	A summary of gains and losses on investment securities for the three and six months ended June 30, 2021 and 2020 is as follows: Three months ended June 30, Six months ended June 30, (Dollars in millions) 2021 2020 2021 2020 Gains on non-marketable and other equity securities, net $ 305 $ 35 $ 472 $ 20 Gains on sales of AFS securities, net — — — 61 Total gains on investment securities, net $ 305 $ 35 $ 472 $ 81
Components of Gains on Equity Warrant Assets	A summary of net gains on equity warrant assets for the three and six months ended June 30, 2021 and 2020 is as follows: Three months ended June 30, Six months ended June 30, (Dollars in millions) 2021 2020 2021 2020 Equity warrant assets: Gains on exercises, net $ 78 $ 9 $ 251 $ 33 Terminations (1) — (1) (1) Changes in fair value, net 45 18 94 8 Total net gains on equity warrant assets $ 122 $ 27 $ 344 $ 40
Components of Client Investment Fees	A summary of client investment fees by instrument type for the three and six months ended June 30, 2021 and 2020 is as follows: Three months ended June 30, Six months ended June 30, (Dollars in millions) 2021 2020 2021 2020 Client investment fees by type: Sweep money market fees $ 7 $ 19 $ 18 $ 42 Asset management fees (1) 8 12 16 21 Repurchase agreement fees — 1 1 12 Total client investment fees (2) $ 15 $ 32 $ 35 $ 75 (1) Represents fees earned from investments in third-party money market mutual funds and fixed-income securities managed by SVB Asset Management. (2) Represents fees earned on client investment funds that are maintained at third-party financial institutions and are not recorded on our balance sheet.
Components of Foreign Exchange Fees	A summary of foreign exchange fee income by instrument type for the three and six months ended June 30, 2021 and 2020 is as follows: Three months ended June 30, Six months ended June 30, (Dollars in millions) 2021 2020 2021 2020 Foreign exchange fees by instrument type: Spot contract commissions $ 60 $ 33 $ 115 $ 74 Forward contract commissions 6 3 8 10 Option premium fees 1 — 1 — Total foreign exchange fees $ 67 $ 36 $ 124 $ 84
Components of Credit Card Fees	A summary of credit card fees by instrument type for the three and six months ended June 30, 2021 and 2020 is as follows: Three months ended June 30, Six months ended June 30, (Dollars in millions) 2021 2020 2021 2020 Credit card fees by instrument type: Card interchange fees, net $ 26 $ 15 $ 49 $ 37 Merchant service fees 4 5 8 10 Card service fees 1 1 2 3 Total credit card fees $ 31 $ 21 $ 59 $ 50
Components of Lending Related Fees	A summary of lending related fees by instrument type for the three and six months ended June 30, 2021 and 2020 is as follows: Three months ended June 30, Six months ended June 30, (Dollars in millions) 2021 2020 2021 2020 Lending related fees by instrument type: Unused commitment fees $ 15 $ 8 $ 28 $ 17 Other 3 3 6 7 Total lending related fees $ 18 $ 11 $ 34 $ 24
Schedule of Investment Banking Revenue	A summary of investment banking revenue by instrument type for the three and six months ended June 30, 2021 and 2020 is as follows: Three months ended June 30, Six months ended June 30, (Dollars in millions) 2021 2020 2021 2020 Investment banking revenue: Underwriting fees $ 84 $ 131 $ 209 $ 162 Advisory fees 9 9 13 24 Private placements and other 10 2 23 2 Total investment banking revenue $ 103 $ 142 $ 245 $ 188
Summary of Other Noninterest Income	A summary of other noninterest income by instrument type for the three and six months ended June 30, 2021 and 2020 is as follows: Three months ended June 30, Six months ended June 30, (Dollars in millions) 2021 2020 2021 2020 Other noninterest income by instrument type: Fund management fees $ 21 $ 8 $ 36 $ 16 Net gains on revaluation of foreign currency instruments, net of foreign exchange forward contracts (1) 6 — 5 — Other service revenue 15 8 31 11 Total other noninterest income $ 42 $ 16 $ 72 $ 27 (1) Represents the net revaluation of client and internal foreign currency denominated financial instruments. We enter into foreign exchange forward contracts to economically reduce our foreign exchange exposure related to client and internal foreign currency denominated financial instruments.
Disaggregation of Revenue	The following tables present our revenues from contracts with customers disaggregated by revenue source and segment for the three and six months ended June 30, 2021 and 2020: Three months ended June 30, 2021 Global SVB Private SVB Capital (2) SVB Other Items Total (Dollars in millions) Revenue from contracts with customers: Client investment fees $ 14 $ 1 $ — $ — $ — $ 15 Spot contract commissions 60 — — — — 60 Card interchange fees, gross 48 — — — 1 49 Merchant service fees 4 — — — — 4 Deposit service charges 27 — — — 1 28 Investment banking revenue — — — 103 — 103 Commissions — — — 17 — 17 Fund management fees — — 20 1 — 21 Performance fees — — 8 — — 8 Correspondent bank rebates 1 — — — — 1 Total revenue from contracts with customers $ 154 $ 1 $ 28 $ 121 $ 2 $ 306 Revenues outside the scope of ASC 606 (1) 20 — 147 28 260 455 Total noninterest income $ 174 $ 1 $ 175 $ 149 $ 262 $ 761 (1) Amounts are accounted for under separate guidance than ASC 606. (2) Global Commercial Bank’s, SVB Capital’s and SVB Leerink's components of noninterest income are shown net of noncontrolling interests. Noncontrolling interest is included within “Other Items. " Three months ended June 30, 2020 Global SVB Private SVB Capital (2) SVB Other Items Total (Dollars in millions) Revenue from contracts with customers: Client investment fees $ 31 $ 1 $ — $ — $ — $ 32 Spot contract commissions 33 — — — — 33 Card interchange fees, gross 26 — — — — 26 Merchant service fees 5 — — — — 5 Deposit service charges 21 — — — — 21 Investment banking revenue — — — 142 — 142 Commissions — — — 17 — 17 Fund management fees — — 7 1 — 8 Correspondent bank rebates 1 — — — — 1 Total revenue from contracts with customers $ 117 $ 1 $ 7 $ 160 $ — $ 285 Revenues outside the scope of ASC 606 (1) 16 — 14 4 50 84 Total noninterest income $ 133 $ 1 $ 21 $ 164 $ 50 $ 369 (1) Amounts are accounted for under separate guidance than ASC 606. (2) Global Commercial Bank’s, SVB Capital’s and SVB Leerink's components of noninterest income are shown net of noncontrolling interests. Noncontrolling interest is included within “Other Items. " Six months ended June 30, 2021 Global SVB Private SVB Capital (2) SVB Other Items Total (Dollars in millions) Revenue from contracts with customers: Client investment fees $ 33 $ 2 $ — $ — $ — $ 35 Spot contract commissions 115 — — — — 115 Card interchange fees, gross 89 — — — 1 90 Merchant service fees 8 — — — — 8 Deposit service charges 52 — — — 1 53 Investment banking revenue — — — 245 — 245 Commissions — — — 41 — 41 Fund management fees — — 33 3 — 36 Performance fees — — 8 — — 8 Correspondent bank rebates 2 — — — — 2 Total revenue from contracts with customers $ 299 $ 2 $ 41 $ 289 $ 2 $ 633 Revenues outside the scope of ASC 606 (1) 34 — 203 30 605 872 Total noninterest income $ 333 $ 2 $ 244 $ 319 $ 607 $ 1,505 (1) Amounts are accounted for under separate guidance than ASC 606. (2) Global Commercial Bank’s, SVB Capital’s and SVB Leerink's components of noninterest income are shown net of noncontrolling interests. Noncontrolling interest is included within “Other Items. " Six months ended June 30, 2020 Global SVB Private SVB Capital (2) SVB Other Items Total (Dollars in millions) Revenue from contracts with customers: Client investment fees $ 74 $ 1 $ — $ — $ — $ 75 Spot contract commissions 74 — — — — 74 Card interchange fees, gross 62 — — — 1 63 Merchant service fees 10 — — — — 10 Deposit service charges 45 — — — — 45 Investment banking revenue — — — 188 — 188 Commissions — — — 33 — 33 Fund management fees — — 14 2 — 16 Correspondent bank rebates 2 — — — — 2 Total revenue from contracts with customers $ 267 $ 1 $ 14 $ 223 $ 1 $ 506 Revenues outside the scope of ASC 606 (1) 33 — 12 3 116 164 Total noninterest income $ 300 $ 1 $ 26 $ 226 $ 117 $ 670 (1) Amounts are accounted for under separate guidance than ASC 606. (2) Global Commercial Bank’s, SVB Capital’s and SVB Leerink's components of noninterest income are shown net of noncontrolling interests. Noncontrolling interest is included within “Other Items. "

Other Noninterest Expense (Tabl

Other Noninterest Expense (Tables)	6 Months Ended
Other Noninterest Expense (Tables)	Jun. 30, 2021
Other Income and Expenses [Abstract]
Summary of Other Noninterest Expense	A summary of other noninterest expense for the three and six months ended June 30, 2021 and 2020 is as follows: Three months ended June 30, Six months ended June 30, (Dollars in millions) 2021 2020 2021 2020 Lending and other client related processing costs $ 8 $ 7 $ 15 $ 16 Correspondent bank fees 5 4 9 8 Investment banking activities 3 8 9 11 Trade order execution costs 3 2 6 5 Data processing services 5 3 10 7 Telephone 2 2 4 4 Dues and publications 1 1 3 2 Postage and supplies 1 1 1 1 Other 17 11 33 26 Total other noninterest expense $ 45 $ 39 $ 90 $ 80

Segment Reporting (Tables)

Segment Reporting (Tables)	6 Months Ended
Segment Reporting (Tables)	Jun. 30, 2021
Segment Reporting [Abstract]
Segment Reporting	Our reportable segment information for the three and six months ended June 30, 2021 and 2020 is as follows: (Dollars in millions) Global SVB Private SVB Capital (1) SVB Other Items (2) Total Three months ended June 30, 2021 Net interest income $ 715 $ 29 $ — $ — $ (16) $ 728 Provision for credit losses (11) (5) — — (19) (35) Noninterest income 174 1 175 149 262 761 Noninterest expense (3) (307) (15) (18) (98) (215) (653) Income before income tax expense (4) $ 571 $ 10 $ 157 $ 51 $ 12 $ 801 Total average loans, amortized cost $ 42,727 $ 5,154 $ — $ — $ 1,931 $ 49,812 Total average assets (5) (6) 131,885 5,199 613 729 12,291 150,717 Total average deposits 128,918 3,977 — — 865 133,760 Three months ended June 30, 2020 Net interest income $ 485 $ 19 $ — $ — $ 9 $ 513 Provision for credit losses (44) (4) — — (18) (66) Noninterest income 133 1 21 164 50 369 Noninterest expense (3) (241) (10) (8) (109) (112) (480) Income (loss) before income tax expense (4) $ 333 $ 6 $ 13 $ 55 $ (71) $ 336 Total average loans, amortized cost $ 30,472 $ 4,036 $ — $ — $ 2,004 $ 36,512 Total average assets (5) (6) 67,936 4,072 430 455 5,540 78,433 Total average deposits 65,091 2,120 — — 706 67,917 Six months ended June 30, 2021 Net interest income $ 1,334 $ 56 $ — $ — $ (2) $ 1,388 (Provision for) reduction of credit losses (56) 4 — — (2) (54) Noninterest income 333 2 244 319 607 1,505 Noninterest expense (3) (585) (28) (34) (235) (407) (1,289) Income before income tax expense (4) $ 1,026 $ 34 $ 210 $ 84 $ 196 $ 1,550 Total average loans, amortized cost $ 41,016 $ 5,066 $ — $ — $ 1,974 $ 48,056 Total average assets (5) (6) 120,470 5,114 595 748 10,910 137,837 Total average deposits 117,655 3,636 — — 957 122,248 Six months ended June 30, 2020 Net interest income $ 949 $ 34 $ — $ — $ 54 $ 1,037 Provision for credit losses (238) (59) — — (13) (310) Noninterest income 300 1 26 226 117 670 Noninterest expense (3) (466) (20) (17) (171) (205) (879) Income (loss) before income tax expense (4) $ 545 $ (44) $ 9 $ 55 $ (47) 518 Total average loans, amortized cost $ 29,805 $ 3,946 $ — $ — $ 1,335 $ 35,086 Total average assets (5) (6) 64,871 3,982 439 469 5,659 75,420 Total average deposits 62,153 2,021 — — 689 64,863 (1) Global Commercial Bank’s, SVB Capital’s and SVB Leerink's components of net interest income, noninterest income, noninterest expense and total average assets are shown net of noncontrolling interests for all periods presented. Noncontrolling interest is included within “Other Items." (2) The “Other Items” column reflects the adjustments necessary to reconcile the results of the reportable segments to the consolidated financial statements prepared in conformity with GAAP. Net interest income consists primarily of interest earned from our fixed income investment portfolio, net of FTP. Noninterest income consists primarily of gains or losses on equity warrant assets, gains or losses on the sale of AFS securities and gains or losses on equity securities from exercised warrant assets. Noninterest expense consists primarily of expenses associated with corporate support functions such as finance, human resources, marketing, legal and other expenses. (3) The Global Commercial Bank segment includes direct depreciation and amortization of $8 million and $6 million for the three months ended June 30, 2021 and 2020, respectively, and $14 million and $11 million for the six months ended June 30, 2021 and 2020, respectively. (4) The internal reporting model used by management to assess segment performance does not calculate income tax expense by segment. Our effective tax rate is a reasonable approximation of the segment rates. (5) Total average assets equal the greater of total average assets or the sum of total average liabilities and total average stockholders' equity for each segment to reconcile the results to the consolidated financial statements prepared in conformity with GAAP.

Off-Balance Sheet Arrangement_2

Off-Balance Sheet Arrangements, Guarantees and Other Commitments (Tables)	6 Months Ended
	Jun. 30, 2021
Disclosure Off Balance Sheet Arrangements Guarantees And Other Commitments Additional Information [Abstract]
Summary Information Related to Commitments to Extend Credit (Excluding Letters of Credit)	The following table summarizes information related to our commitments to extend credit at June 30, 2021 and December 31, 2020: (Dollars in millions) June 30, 2021 December 31, 2020 Loan commitments available for funding: (1) $ 33,174 $ 28,975 Commercial and standby letters of credit (2) 3,211 3,007 Total unfunded credit commitments $ 36,385 $ 31,982 Allowance for unfunded credit commitments (3) 120 121 (1) Represents commitments which are available for funding, due to clients meeting all collateral, compliance and financial covenants required under loan commitment agreements. (2) See below for additional information on our commercial and standby letters of credit. (3) Our allowance for credit losses for unfunded credit commitments includes an allowance for both our unfunded loan commitments and our letters of credit.
Summary of Commercial and Standby Letters of Credit	The table below summarizes our commercial and standby letters of credit at June 30, 2021. The maximum potential amount of future payments represents the amount that could be remitted under letters of credit if there were a total default by the guaranteed parties, without consideration of possible recoveries under recourse provisions or from the collateral held or pledged. (Dollars in millions) Expires in One Expires After Total Amount Maximum Amount Financial standby letters of credit $ 2,916 $ 101 $ 3,017 $ 3,017 Performance standby letters of credit 121 5 126 126 Commercial letters of credit 23 45 68 68 Total $ 3,060 $ 151 $ 3,211 $ 3,211
Total Capital Commitments, Unfunded Capital Commitments, and Ownership in Each Fund	The following table details our total capital commitments, unfunded capital commitments, and our ownership percentage in each fund at June 30, 2021: (Dollars in millions) SVBFG Capital Commitments SVBFG Unfunded SVBFG Ownership CP II, LP (1) $ 1 $ — 5.1 % Capital Preferred Return Fund, LP 13 — 20.0 Growth Partners, LP 25 1 33.0 Strategic Investors Fund, LP 15 1 12.6 Strategic Investors Fund II, LP 15 1 8.6 Strategic Investors Fund III, LP 15 1 5.9 Strategic Investors Fund IV, LP 12 2 5.0 Strategic Investors Fund V funds 1 — Various Other venture capital and private equity fund investments (equity method accounting) 11 3 Various Debt funds (equity method accounting) 59 — Various Other fund investments (2) 267 16 Various Total $ 434 $ 25 (1) Our ownership includes direct ownership of 1.3 percent and indirect ownership interest of 3.8 percent through our investment in Strategic Investors Fund II, LP. (2) Represents commitments to 163 funds (primarily venture capital funds) where our ownership interest is generally less than five percent of the voting interests of each such fund.
Remaining Unfunded Commitments to Venture Capital or Private Equity Funds by Consolidated Managed Funds	The following table details the amounts of remaining unfunded commitments to venture capital and private equity funds by our consolidated managed funds of funds (including our interest and the noncontrolling interests) at June 30, 2021: (Dollars in millions) Unfunded Commitments Capital Preferred Return Fund, LP $ 2 Growth Partners, LP 1 Total $ 3

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	6 Months Ended
Fair Value of Financial Instruments (Tables)	Jun. 30, 2021
Fair Value Disclosures [Abstract]
Fair Value Hierarchy Tables Present Information about Assets and Liabilities Measured at Fair Value on a Recurring Basis	The following fair value hierarchy table presents information about our assets and liabilities that are measured at fair value on a recurring basis as of June 30, 2021: (Dollars in millions) Level 1 Level 2 Level 3 Balance at June 30, 2021 Assets: AFS securities: U.S. Treasury securities $ 6,235 $ — $ — $ 6,235 U.S. agency debentures — 81 — 81 Foreign government debt securities 15 — — 15 Residential MBS: Agency-issued MBS — 11,562 — 11,562 Agency-issued CMO — fixed rate — 4,424 — 4,424 Agency-issued CMBS — 1,559 — 1,559 Total AFS securities 6,250 17,626 — 23,876 Non-marketable and other equity securities (fair value accounting): Non-marketable securities: Venture capital and private equity fund investments measured at net asset value — — — 295 Other equity securities in public companies 35 72 — 107 Total non-marketable and other equity securities (fair value accounting) 35 72 — 402 Other assets: Foreign exchange forward and option contracts — 177 — 177 Equity warrant assets — 9 257 266 Interest rate swaps — 16 — 16 Client interest rate derivatives — 65 — 65 Total assets $ 6,285 $ 17,965 $ 257 $ 24,802 Liabilities: Foreign exchange forward and option contracts $ — $ 157 $ — $ 157 Interest rate swaps — 2 — 2 Client interest rate derivatives — 59 — 59 Total liabilities $ — $ 218 $ — $ 218 The following fair value hierarchy table presents information about our assets and liabilities that are measured at fair value on a recurring basis as of December 31, 2020: (Dollars in millions) Level 1 Level 2 Level 3 Balance at December 31, 2020 Assets: AFS securities: U.S. Treasury securities $ 4,470 $ — $ — $ 4,470 U.S. agency debentures — 237 — 237 Foreign government debt securities 24 — — 24 Residential MBS: Agency-issued MBS — 13,503 — 13,503 Agency-issued CMO—fixed rate — 8,107 — 8,107 Agency-issued CMBS — 4,572 — 4,572 Total AFS securities 4,494 26,419 — 30,913 Non-marketable and other equity securities (fair value accounting): Non-marketable securities: Venture capital and private equity fund investments measured at net asset value — — — 274 Other equity securities in public companies 43 238 — 281 Total non-marketable and other equity securities (fair value accounting) 43 238 — 555 Other assets: Foreign exchange forward and option contracts — 217 — 217 Equity warrant assets — 11 192 203 Client interest rate derivatives — 68 — 68 Total assets $ 4,537 $ 26,953 $ 192 $ 31,956 Liabilities: Foreign exchange forward and option contracts $ — $ 210 $ — $ 210 Client interest rate derivatives — 27 — 27 Total liabilities $ — $ 237 $ — $ 237
Additional Information about Level 3 Assets Measured at Fair Value on a Recurring Basis	The following table presents additional information about Level 3 assets measured at fair value on a recurring basis for the three and six months ended June 30, 2021 and 2020: (Dollars in millions) Beginning Balance Total Net Gains Included in Net Income (1) Sales/Exits Issuances Transfers out of Level 3 Ending Balance Three months ended June 30, 2021 Equity warrant assets $ 233 $ 121 $ (104) $ 7 $ — $ 257 Three months ended June 30, 2020 Equity warrant assets 150 24 (15) 6 — 165 Six months ended June 30, 2021 Equity warrant assets 192 341 (285) 13 (4) 257 Six months ended June 30, 2020 Equity warrant assets 161 39 (46) 11 — 165 (1) Realized and unrealized gains (losses) are recorded in the line item “Gains on equity warrant assets, net," a component of noninterest income.
Unrealized Gains Included in Earnings Attributable to Level 3 Assets Held	The following table presents the amount of net unrealized gains and losses included in earnings attributable to Level 3 assets still held at June 30, 2021 and 2020: Three months ended June 30, Six months ended June 30, (Dollars in millions) 2021 2020 2021 2020 Other assets: Equity warrant assets (1) $ 31 $ 11 $ 92 $ 7 Total unrealized gains, net $ 31 $ 11 $ 92 $ 7 (1) Unrealized gains and losses are recorded in the line item “Gains on equity warrant assets, net, " a component of noninterest income.
Quantitative Information About Significant Unobservable Inputs	The following table presents quantitative information about the significant unobservable inputs used for certain of our Level 3 fair value measurements at June 30, 2021 and December 31, 2020. We have not included in this table our venture capital and private equity fund investments (fair value accounting) as we use net asset value per share (as obtained from the general partners of the investments) as a practical expedient to determine fair value. (Dollars in millions) Fair value Valuation Technique Significant Unobservable Inputs Input Range Weighted June 30, 2021: Equity warrant assets (public portfolio) 12 Black-Scholes option pricing model Volatility 48.2% - 58.5% 49.0 % Risk-Free interest rate 1.2- 1.5 1.2 Sales restrictions discount (1) 20.0 20.0 Equity warrant assets (private portfolio) 245 Black-Scholes option pricing model Volatility 25.4 - 58.5 46.3 Risk-Free interest rate 0.02 - 1.05 0.4 Marketability discount (2) 22.0 22.0 Remaining life assumption (3) 40.0 40.0 December 31, 2020: Equity warrant assets (public portfolio) 1 Black-Scholes option pricing model Volatility 46.0% - 56.8% 49.1 % Risk-Free interest rate 0.3- 0.9 0.6 Sales restrictions discount (1) 10.0 - 20.0 10.2 Equity warrant assets (private portfolio) 191 Black-Scholes option pricing model Volatility 24.4 - 56.8 43.2 Risk-Free interest rate 0.01 - 0.52 0.1 Marketability discount (2) 20.6 20.6 Remaining life assumption (3) 40.0 40.0 (1) We adjust quoted market prices of public companies, which are subject to certain sales restrictions. Sales restriction discounts generally range from 10 percent to 20 percent depending on the duration of the sales restrictions, which typically range from three (2) Our marketability discount is applied to all private company warrants to account for a general lack of liquidity due to the private nature of the associated underlying company. The quantitative measure used is based upon various option-pricing models. On a quarterly basis, a sensitivity analysis is performed on our marketability discount.
Summary of Estimated Fair Values of Financial Instruments Not Carried at Fair Value	The following fair value hierarchy table presents the estimated fair values of our financial instruments that are not carried at fair value at June 30, 2021 and December 31, 2020: Estimated Fair Value (Dollars in millions) Carrying Amount Total Level 1 Level 2 Level 3 June 30, 2021: Financial assets: Cash and cash equivalents $ 23,959 $ 23,959 $ 23,959 $ — $ — HTM securities 59,992 60,107 — 60,107 — Non-marketable securities not measured at net asset value 262 262 — — 262 Non-marketable securities measured at net asset value 583 583 — — — Net commercial loans 45,108 46,353 — — 46,353 Net consumer loans 5,250 5,395 — — 5,395 FHLB and Federal Reserve Bank stock 83 83 — — 83 Financial liabilities: Short-term borrowings 34 34 — 34 — Non-maturity deposits (1) 145,193 145,193 145,193 — — Time deposits 645 645 — 645 — 3.50% Senior Notes 349 379 — 379 — 3.125% Senior Notes 495 534 — 534 — 1.80% Senior Notes 494 479 — 479 — 2.10% Senior Notes 496 507 — 507 — Off-balance sheet financial assets: Commitments to extend credit — 41 — — 41 December 31, 2020: Financial assets: Cash and cash equivalents $ 17,675 $ 17,675 $ 17,675 $ — $ — HTM securities 16,592 17,217 — 17,217 — Non-marketable securities not measured at net asset value 241 241 — — 241 Non-marketable securities measured at net asset value 390 390 — — — Net commercial loans 39,886 40,412 — — 40,412 Net consumer loans 4,847 4,911 — — 4,911 FHLB and Federal Reserve Bank stock 61 61 — — 61 Financial liabilities: Short-term borrowings 21 21 — 21 — Non-maturity deposits (1) 101,294 101,294 101,294 — — Time deposits 688 502 — 502 — 3.50% Senior Notes 349 383 — 383 — 3.125% Senior Notes 495 564 — 564 — Off-balance sheet financial assets: Commitments to extend credit — 37 — — 37 (1) Includes noninterest-bearing demand deposits, interest-bearing checking accounts, money market accounts and interest-bearing sweep deposits.
Summary of Estimated Fair Values of Investments and Remaining Unfunded Commitments for Each Major Category of Investments	The following table is a summary of the estimated fair values of these investments and remaining unfunded commitments for each major category of these investments as of June 30, 2021: (Dollars in millions) Carrying Amount Fair Value Unfunded Commitments Non-marketable securities (fair value accounting): Venture capital and private equity fund investments (1) $ 295 $ 295 $ 19 Non-marketable securities (equity method accounting): Venture capital and private equity fund investments (2) 544 544 8 Debt funds (2) 7 7 — Other investments (2) 32 32 1 Total $ 878 $ 878 $ 28 (1) Venture capital and private equity fund investments within non-marketable securities (fair value accounting) include investments made by our managed funds of funds and one of our direct venture funds (consolidated VIEs) and investments in venture capital and private equity fund investments (unconsolidated VIEs). Collectively, these investments in venture capital and private equity funds are primarily in U.S. and global technology and life science/healthcare companies. Included in the fair value and unfunded commitments of fund investments under fair value accounting are $79 million and $2 million, respectively, attributable to noncontrolling interests. It is estimated that we will receive distributions from the fund investments over the next 10 to 13 years, depending on the age of the funds and any potential extensions of terms of the funds. (2) Venture capital and private equity fund investments, debt funds, and other fund investments within non-marketable securities (equity method accounting) include funds that invest in or lend money to primarily U.S. and global technology and life science/healthcare companies. It is estimated that we will receive distributions from the funds over the next 5 to 8 years, depending on the age of the funds and any potential extensions of the terms of the funds.

Stockholders' Equity and EPS -

Stockholders' Equity and EPS - Reclassification out of AOCI (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Gains on investment securities, net	$ 305	$ 35	$ 472	$ 81
Related tax benefit	(173)	(88)	(360)	(137)
Net interest income	728	513	1,388	1,037
Total reclassification adjustment for gains included in net income, net of tax	502	229	1,034	361
Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total reclassification adjustment for gains included in net income, net of tax	(11)	(12)	(22)	(57)
Accumulated Net Investment Gain (Loss) Attributable to Parent \| Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Gains on investment securities, net	0	0	0	(61)
Related tax benefit	0	0	0	17
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent \| Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Related tax benefit	(5)	(4)	9	5
Net interest income	$ (16)	$ (16)	$ (31)	$ (18)

Stockholders' Equity and EPS _2

Stockholders' Equity and EPS - Activity Related to Net Gains on Cash Flow Hedges in AOCI (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Accumulated Other Comprehensive Income (Loss) [Line Items]
Cash flow hedge gains expected to reclassified out of AOCI over next 12 months	$ 61
Balance, beginning of period, net of tax	10,121	$ 7,182	$ 8,433	$ 6,621
Balance, end of period, net of tax	11,967	7,468	11,967	7,468
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance, beginning of period, net of tax	118	164	129	(2)
Net increase in fair value, net of tax	0	0	0	168
Net realized gain reclassified to net income, net of tax	(11)	(11)	(22)	(13)
Balance, end of period, net of tax	$ 107	$ 153	$ 107	$ 153

Stockholders' Equity and EPS _3

Stockholders' Equity and EPS - Reconciliation of Basic EPS to Diluted EPS (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Numerator:
Net income available to common stockholders	$ 502	$ 229	$ 1,034	$ 361
Denominator:
Weighted average common shares outstanding-basic (in shares)	54,353	51,581	53,272	51,573
Weighted average common shares outstanding—diluted (in shares)	55,152	51,795	54,115	51,848
Earnings per common share:
Basic (dollars per share)	$ 9.23	$ 4.44	$ 19.40	$ 7
Diluted (dollars per share)	$ 9.09	$ 4.42	$ 19.10	$ 6.97
Stock options and ESPP
Denominator:
Weighted average effect of dilutive securities (in shares)	272	114	274	140
Restricted stock units and awards
Denominator:
Weighted average effect of dilutive securities (in shares)	527	100	569	135

Stockholders' Equity and EPS _4

Stockholders' Equity and EPS - Common Shares Excluded from Diluted EPS Calculation as They Were Deemed to be Anti-Dilutive (Details) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from diluted earnings per share calculation	36	600	62	557
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from diluted earnings per share calculation	36	288	18	247
Restricted stock units and awards
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from diluted earnings per share calculation	0	312	44	310

Stockholders' Equity and EPS _5

Stockholders' Equity and EPS - Common Stock (Details) - USD ($) $ / shares in Units, $ in Millions	Apr. 14, 2021	Mar. 22, 2021	Jun. 30, 2021	Dec. 31, 2020
Class of Stock [Line Items]
Common stock, shares, issued			54,530,307	51,888,463
Common Stock
Class of Stock [Line Items]
Common stock, shares, issued	300,000	2,000,000
Shares Issued, Price Per Share		$ 500
Net proceeds after deducting discounts and commissions	$ 146	$ 972

Stockholders' Equity and EPS _6

Stockholders' Equity and EPS - Preferred Stock (Details)	May 13, 2021$ / sharesshares	Feb. 02, 2021$ / sharesshares	Dec. 09, 2019$ / sharesshares	Jun. 30, 2021$ / shares	Dec. 31, 2020$ / shares
Class of Stock [Line Items]
Preferred stock, par value, in usd per share				$ 0.001	$ 0.001
Preferred Stock, Series A
Class of Stock [Line Items]
Preferred stock, dividend rate, percentage			5.25%
Preferred stock, depositary shares issued \| shares			14,000,000
Preferred stock, depository share ownership interest				0.025
Preferred stock, par value, in usd per share			$ 0.001	$ 0.001
Preferred stock, liquidation preference per share, in usd per share			1,000
Preferred stock, liquidation preference per depositary share			$ 25
Series B Preferred Stock
Class of Stock [Line Items]
Preferred stock, dividend rate, percentage		4.10%
Preferred stock, depositary shares issued \| shares		750,000
Preferred stock, depository share ownership interest				0.01
Preferred stock, par value, in usd per share		$ 0.001		$ 0.001
Preferred stock, liquidation preference per share, in usd per share		100,000
Preferred stock, liquidation preference per depositary share		$ 1,000
Preferred stock, period dividend rate reset using the ten-year treasury rate		10 years
Preferred stock, number of business days prior to each reset date dividend rate calculated		3 days
Preferred stock, number of days used for average yields on actively traded US Treasury securities		5 days
Preferred stock, margin used for dividend rate at reset		3.064%
Series C Preferred Stock
Class of Stock [Line Items]
Preferred stock, dividend rate, percentage	4.00%
Preferred stock, depositary shares issued \| shares	1,000,000
Preferred stock, depository share ownership interest				0.01
Preferred stock, par value, in usd per share	$ 0.001			$ 0.001
Preferred stock, liquidation preference per share, in usd per share	100,000
Preferred stock, liquidation preference per depositary share	$ 1,000	$ 1,000
Preferred stock, number of business days prior to each reset date dividend rate calculated		3 days
Preferred stock, number of days used for average yields on actively traded US Treasury securities	5 days
Preferred stock, period dividend rate reset using the five-year treasury rate	5 years
Preferred stock, margin used for dividend rate at reset	3.202%

Stockholders' Equity and EPS _7

Stockholders' Equity and EPS - Preferred Stock Summary (Details) $ / shares in Units, $ in Millions	6 Months Ended
	Jun. 30, 2021USD ($)$ / sharesshares	May 13, 2021$ / shares	Feb. 02, 2021$ / shares	Dec. 31, 2020USD ($)$ / sharesshares	Dec. 09, 2019$ / shares
Class of Stock [Line Items]
Carrying value \| $	$ 2,064			$ 340
Shares issued and outstanding \| shares	367,500			350,000
Par Value	$ 0.001			$ 0.001
Preferred Stock, Series A
Class of Stock [Line Items]
Amount outstanding \| $	$ 350
Carrying value \| $	$ 340
Shares issued and outstanding \| shares	350,000
Par Value	$ 0.001				$ 0.001
Preferred stock, depository share ownership interest	0.025
Preferred stock, liquidation preference per depositary share					$ 25
2021 dividends paid per depository share, usd per share	$ 0.66
Series B Preferred Stock
Class of Stock [Line Items]
Amount outstanding \| $	$ 750
Carrying value \| $	$ 739
Shares issued and outstanding \| shares	7,500
Par Value	$ 0.001		$ 0.001
Preferred stock, depository share ownership interest	0.01
Preferred stock, liquidation preference per depositary share			1,000
2021 dividends paid per depository share, usd per share	$ 1.17
Series C Preferred Stock
Class of Stock [Line Items]
Amount outstanding \| $	$ 1,000
Carrying value \| $	$ 985
Shares issued and outstanding \| shares	10,000
Par Value	$ 0.001	$ 0.001
Preferred stock, depository share ownership interest	0.01
Preferred stock, liquidation preference per depositary share		$ 1,000	$ 1,000
2021 dividends paid per depository share, usd per share	$ 0

Stockholders' Equity and EPS _8

Stockholders' Equity and EPS - QTD Stockholders' Equity (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Stockholders Equity Note [Line Items]
Balance, beginning of period, net of tax	$ 10,121	$ 7,182	$ 8,433	$ 6,621
Common stock issued under employee benefit plans, net of restricted stock cancellations	(5)	14	(3)	14
Net income	628	248	1,190	381
Capital calls and distributions, net	(39)	(13)	(51)	(14)
Other comprehensive income, net of tax	121	22	(481)	530
Share-based compensation, net	28	20	55	39
Dividends on preferred stock	(13)	(5)	(18)	(8)
Other	(5)
Balance, end of period, net of tax	11,967	7,468	11,967	7,468
Common Stock
Stockholders Equity Note [Line Items]
Issuance of stock	146		1,118
Noncumulative Preferred Stock
Stockholders Equity Note [Line Items]
Issuance of stock	985		1,724
Preferred Stock
Stockholders Equity Note [Line Items]
Balance, beginning of period, net of tax	1,079	340	340	340
Balance, end of period, net of tax	$ 2,064	$ 340	$ 2,064	$ 340
Preferred Stock \| Noncumulative Preferred Stock
Stockholders Equity Note [Line Items]
Issuance of stock (in shares)	985,000,000		1,724,000,000
Common Stock
Stockholders Equity Note [Line Items]
Balance (in shares)	54,001,797	51,490,342	51,888,463	51,655,607
Balance, beginning of period, net of tax	$ 0	$ 0	$ 0	$ 0
Common stock issued under employee benefit plans, net of restricted stock cancellations (in shares)	228,510	250,372	341,844	329,330
Common stock issued under employee benefit plans, net of restricted stock cancellations			$ 0	$ 0
Balance (in shares)	54,530,307	51,740,714	54,530,307	51,740,714
Balance, end of period, net of tax	$ 0	$ 0	$ 0	$ 0
Common Stock \| Common Stock
Stockholders Equity Note [Line Items]
Issuance of stock (in shares)	300,000		2,300,000
Issuance of stock	$ 0		$ 0
Additional Paid-in Capital
Stockholders Equity Note [Line Items]
Balance, beginning of period, net of tax	2,591	1,489	1,585	1,470
Common stock issued under employee benefit plans, net of restricted stock cancellations	(5)	14	(3)	14
Share-based compensation, net	28	20	55	39
Other	(5)
Balance, end of period, net of tax	2,755	1,523	2,755	1,523
Additional Paid-in Capital \| Common Stock
Stockholders Equity Note [Line Items]
Issuance of stock	146		1,118
Retained Earnings
Stockholders Equity Note [Line Items]
Balance, beginning of period, net of tax	6,204	4,613	5,672	4,576
Net income	515	234	1,052
Dividends on preferred stock	(13)	(5)	(18)	(8)
Balance, end of period, net of tax	6,706	4,842	6,706	4,842
Accumulated Other Comprehensive Income
Stockholders Equity Note [Line Items]
Balance, beginning of period, net of tax	21	592	623	84
Other comprehensive income, net of tax	121	22	(481)	530
Balance, end of period, net of tax	142	614	142	614
Total SVBFG Stockholders’ Equity
Stockholders Equity Note [Line Items]
Balance, beginning of period, net of tax	9,895	7,034	8,220	6,470
Common stock issued under employee benefit plans, net of restricted stock cancellations	(5)	14	(3)	14
Net income	515	234	1,052	369
Other comprehensive income, net of tax	121	22	(481)	530
Share-based compensation, net	28	20	55	39
Dividends on preferred stock	(13)	(5)	(18)	(8)
Other	(5)
Balance, end of period, net of tax	11,667	7,319	11,667	7,319
Total SVBFG Stockholders’ Equity \| Common Stock
Stockholders Equity Note [Line Items]
Issuance of stock	146		1,118
Total SVBFG Stockholders’ Equity \| Noncumulative Preferred Stock
Stockholders Equity Note [Line Items]
Issuance of stock	985		1,724
Noncontrolling Interests
Stockholders Equity Note [Line Items]
Balance, beginning of period, net of tax	226	148	213	151
Net income	113	14	138	12
Capital calls and distributions, net	(39)	(13)	(51)	(14)
Balance, end of period, net of tax	$ 300	$ 149	$ 300	$ 149

Variable Interest Entities - Ca

Variable Interest Entities - Carrying Amounts and Classification of Significant Variable Interests (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Variable Interest Entity [Line Items]
Cash and cash equivalents	$ 23,959	$ 17,675
Non-marketable and other equity securities	1,943	1,802
Accrued interest receivable and other assets	2,650	3,206
Total assets	163,399	115,511
Other liabilities	3,449	3,972
Total liabilities	151,432	107,078
Maximum exposure to loss in unconsolidated VIEs	955	859
Investments in qualified affordable housing projects, net	696	616
Consolidated
Variable Interest Entity [Line Items]
Cash and cash equivalents	13	15
Non-marketable and other equity securities	618	422
Accrued interest receivable and other assets	24	1
Total assets	655	438
Other liabilities	14	1
Total liabilities	14	1
Maximum exposure to loss in unconsolidated VIEs	641
Unconsolidated
Variable Interest Entity [Line Items]
Cash and cash equivalents	0	0
Non-marketable and other equity securities	955	859
Accrued interest receivable and other assets	0	0
Total assets	955	859
Other liabilities	415	370
Total liabilities	415	370
Non-marketable securities \| Unconsolidated
Variable Interest Entity [Line Items]
Maximum exposure to loss in unconsolidated VIEs	$ 955	$ 859

Variable Interest Entities - Ad

Variable Interest Entities - Additional Information (Details) $ in Millions	Jun. 30, 2021USD ($)entity	Dec. 31, 2020USD ($)
Investments In Variable Interest Entities [Abstract]
Number of consolidated entities \| entity	3
Variable Interest Entity [Line Items]
Maximum exposure to loss in unconsolidated VIEs	$ 955	$ 859
Total assets	163,399	115,511
Consolidated
Variable Interest Entity [Line Items]
Maximum exposure to loss in unconsolidated VIEs	641
Total assets	655	438
Unconsolidated
Variable Interest Entity [Line Items]
Total assets	$ 955	$ 859

Cash and Cash Equivalents - Sum

Cash and Cash Equivalents - Summary of Cash and Cash Equivalents (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Cash and Cash Equivalents [Abstract]
Cash and due from banks	$ 23,197	$ 17,448
Securities purchased under agreements to resell	762	227
Total cash and cash equivalents	$ 23,959	$ 17,675

Cash and Cash Equivalents - S_2

Cash and Cash Equivalents - Summary of Cash and Cash Equivalents (Footnote Information) (Details) - USD ($)	3 Months Ended	6 Months Ended
	Mar. 31, 2021	Jun. 30, 2021	Dec. 31, 2020
Cash and Cash Equivalents [Abstract]
Deposits at the Federal Reserve Bank earning interest at the Federal Funds target rate		$ 16,400,000,000	$ 13,700,000,000
Interest-earning deposits in other financial institutions		5,800,000,000	3,000,000,000
Fair value of securities purchased under agreements to resell		777,000,000	$ 232,000,000
Securities received as collateral, amount repledged and sold	$ 0	$ 0

Investment Securities - Compone

Investment Securities - Components of Available-for-Sale Investment Securities Portfolio (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 23,776,000	$ 30,245,000
Unrealized Gains	330,000	683,000
Unrealized Losses	(230,000)	(15,000)
Carrying Value	23,876,000	30,913,000
U.S. treasury securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	6,051,000	4,198,000
Unrealized Gains	189,000	272,000
Unrealized Losses	(5,000)	0
Carrying Value	6,235,000	4,470,000
U.S. agency debentures
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	84,000	234,000
Unrealized Gains	0	4,000
Unrealized Losses	(3,000)	(1,000)
Carrying Value	81,000	237,000
Foreign government debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	15,000	24,000
Unrealized Gains	0	0
Unrealized Losses	0	0
Carrying Value	15,000	24,000
Residential mortgage-backed securities \| Agency-issued mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	11,606,000	13,271,000
Unrealized Gains	80,000	233,000
Unrealized Losses	(124,000)	(1,000)
Carrying Value	11,562,000	13,503,000
Residential mortgage-backed securities \| Agency-issued collateralized mortgage obligations—fixed rate
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	4,497,000	8,077,000
Unrealized Gains	17,000	40,000
Unrealized Losses	(90,000)	(10,000)
Carrying Value	4,424,000	8,107,000
Agency-issued commercial mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	1,523,000	4,441,000
Unrealized Gains	44,000	134,000
Unrealized Losses	(8,000)	(3,000)
Carrying Value	$ 1,559,000	$ 4,572,000

Investment Securities - Activit

Investment Securities - Activity of Available-for-Sale Securities (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Investments, Debt and Equity Securities [Abstract]
Sales proceeds	$ 0	$ 0	$ 0	$ 2,654
Gross realized gains	0	0	0	61
Gross realized losses	0	0	0	0
Net realized gains	$ 0	$ 0	$ 0	$ 61

Investment Securities - Summary

Investment Securities - Summary of Unrealized Losses on Available-for-Sale Securities (Details) $ in Millions	Jun. 30, 2021USD ($)Investment	Dec. 31, 2020USD ($)Investment
Debt Securities, Available-for-sale [Line Items]
Less than 12 months - Fair Value of Investments	$ 14,050	$ 4,285
Less than 12 months - Unrealized Losses	(229)	(15)
12 months or longer - Fair Value of Investments	76	0
12 months or longer - Unrealized Losses	(1)	0
Fair Value of Investments	14,126	4,285
Unrealized Losses	$ (230)	$ (15)
Number of investments in unrealized loss position \| Investment	344	93
Number of investments with unrealized losses greater than 12 months \| Investment	2	0
U.S. treasury securities
Debt Securities, Available-for-sale [Line Items]
Less than 12 months - Fair Value of Investments	$ 2,218	$ 60
Less than 12 months - Unrealized Losses	(5)	0
12 months or longer - Fair Value of Investments	0	0
12 months or longer - Unrealized Losses	0	0
Fair Value of Investments	2,218	60
Unrealized Losses	(5)	0
U.S. agency debentures
Debt Securities, Available-for-sale [Line Items]
Less than 12 months - Fair Value of Investments	81	133
Less than 12 months - Unrealized Losses	(3)	(1)
12 months or longer - Fair Value of Investments	0	0
12 months or longer - Unrealized Losses	0	0
Fair Value of Investments	81	133
Unrealized Losses	(3)	(1)
Residential mortgage-backed securities \| Agency-issued mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Less than 12 months - Fair Value of Investments	8,268	904
Less than 12 months - Unrealized Losses	(124)	(1)
12 months or longer - Fair Value of Investments	0	0
12 months or longer - Unrealized Losses	0	0
Fair Value of Investments	8,268	904
Unrealized Losses	(124)	(1)
Residential mortgage-backed securities \| Agency-issued collateralized mortgage obligations—fixed rate
Debt Securities, Available-for-sale [Line Items]
Less than 12 months - Fair Value of Investments	2,832	2,199
Less than 12 months - Unrealized Losses	(89)	(10)
12 months or longer - Fair Value of Investments	76	0
12 months or longer - Unrealized Losses	(1)	0
Fair Value of Investments	2,908	2,199
Unrealized Losses	(90)	(10)
Agency-issued commercial mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Less than 12 months - Fair Value of Investments	651	989
Less than 12 months - Unrealized Losses	(8)	(3)
12 months or longer - Fair Value of Investments	0	0
12 months or longer - Unrealized Losses	0	0
Fair Value of Investments	651	989
Unrealized Losses	$ (8)	$ (3)

Investment Securities - Summa_2

Investment Securities - Summary of Remaining Contractual Principal Maturities for Available-for-Sale Securities (Details) $ in Millions	3 Months Ended
	Jun. 30, 2021USD ($)
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
Total	$ 23,876
One Year or Less	56
After One Year to Five Years	6,037
After Five Years to Ten Years	1,797
After Ten Years	15,986
U.S. treasury securities
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
Total	6,235
One Year or Less	41
After One Year to Five Years	6,037
After Five Years to Ten Years	157
After Ten Years	0
U.S. agency debentures
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
Total	81
One Year or Less	0
After One Year to Five Years	0
After Five Years to Ten Years	81
After Ten Years	0
Foreign government debt securities
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
Total	15
One Year or Less	15
After One Year to Five Years	0
After Five Years to Ten Years	0
After Ten Years	0
Residential mortgage-backed securities \| Agency-issued mortgage-backed securities
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
Total	11,562
One Year or Less	0
After One Year to Five Years	0
After Five Years to Ten Years	0
After Ten Years	11,562
Residential mortgage-backed securities \| Agency-issued collateralized mortgage obligations—fixed rate
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
Total	4,424
One Year or Less	0
After One Year to Five Years	0
After Five Years to Ten Years	0
After Ten Years	4,424
Agency-issued commercial mortgage-backed securities
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
Total	1,559
One Year or Less	0
After One Year to Five Years	0
After Five Years to Ten Years	1,559
After Ten Years	$ 0
Available-for-sale Securities \| Lower Limit
Debt Securities, Available-for-sale [Line Items]
Mortgage-backed securities contractual maturities (in years)	10 years
Available-for-sale Securities \| Upper Limit
Debt Securities, Available-for-sale [Line Items]
Mortgage-backed securities contractual maturities (in years)	30 years

Investment Securities - Compo_2

Investment Securities - Components of Held-to-Maturity Investment Securities (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019
Schedule of Held-to-maturity Securities [Line Items]
Available-for-sale securities, transferred to held-to-maturity Securities	$ 5,700,000
Available-for-sale securities, transferred to held-to-maturity securities, unrealized gain (loss)	78,000
Amortized Cost	59,997,000		$ 16,592,000
Unrealized Gains	512,000		628,000
Unrealized Losses	(402,000)		(3,000)
Fair Value	60,107,000		17,217,000
Allowance for Credit Losses	5,000	$ 1,000	0	$ 1,000	$ 1,000	$ 1,000
U.S. agency debentures
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	552,000		402,000
Unrealized Gains	19,000		19,000
Unrealized Losses	0		0
Fair Value	571,000		421,000
Allowance for Credit Losses	0		0
Residential mortgage-backed securities \| Agency-issued mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	36,724,000		7,740,000
Unrealized Gains	194,000		240,000
Unrealized Losses	(302,000)		(2,000)
Fair Value	36,616,000		7,978,000
Allowance for Credit Losses	0		0
Residential mortgage-backed securities \| Agency-issued collateralized mortgage obligations—fixed rate
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	4,474,000		1,735,000
Unrealized Gains	29,000		23,000
Unrealized Losses	(23,000)		0
Fair Value	4,480,000		1,758,000
Allowance for Credit Losses	0		0
Residential mortgage-backed securities \| Agency-issued collateralized mortgage obligations—variable rate
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	117,000		137,000
Unrealized Gains	1,000		1,000
Unrealized Losses	0		0
Fair Value	118,000		138,000
Allowance for Credit Losses	0		0
Agency-issued commercial mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	12,492,000		2,943,000
Unrealized Gains	76,000		124,000
Unrealized Losses	(61,000)		0
Fair Value	12,507,000		3,067,000
Allowance for Credit Losses	0		0
Municipal bonds and notes
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	5,265,000		3,635,000
Unrealized Gains	189,000		221,000
Unrealized Losses	(16,000)		(1,000)
Fair Value	5,438,000		3,855,000
Allowance for Credit Losses	0		0
Corporate bonds
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	373,000		$ 0
Unrealized Gains	4,000
Unrealized Losses	0
Fair Value	377,000
Allowance for Credit Losses	$ 5,000

Investment Securities - Allowan

Investment Securities - Allowance for Credit Losses for HTM Securities (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]
Beginning Balance / Day One Impact of adopting ASC 326	$ 1,000	$ 1,000	$ 0	$ 1,000
Provision for Credit Losses	4,000	1,000	5,000	1,000
Ending Balance	5,000	1,000	5,000	1,000
Accrued interest receivable and other assets \| Held-to-maturity Securities
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]
Accrued interest receivable	144,000		144,000		$ 55,000
Municipal bonds and notes
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]
Beginning Balance / Day One Impact of adopting ASC 326			0
Ending Balance	0		0
Corporate bonds
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]
Ending Balance	$ 5,000		$ 5,000
Cumulative adjustment for the adoption of amendment
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]
Beginning Balance / Day One Impact of adopting ASC 326		$ 1,000		$ 1,000

Investment Securities - Credit

Investment Securities - Credit Quality Indicators (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Financing Receivable, Credit Quality Indicator [Line Items]
Held-to-maturity securities, amortized cost	$ 59,997	$ 16,592
Municipal bonds and notes
Financing Receivable, Credit Quality Indicator [Line Items]
Held-to-maturity securities, amortized cost	5,265	3,635
Municipal bonds and notes \| Aaa
Financing Receivable, Credit Quality Indicator [Line Items]
Held-to-maturity securities, amortized cost	2,680	2,070
Municipal bonds and notes \| Aa1
Financing Receivable, Credit Quality Indicator [Line Items]
Held-to-maturity securities, amortized cost	1,619	1,145
Municipal bonds and notes \| Aa2
Financing Receivable, Credit Quality Indicator [Line Items]
Held-to-maturity securities, amortized cost	802	420
Municipal bonds and notes \| Aa3
Financing Receivable, Credit Quality Indicator [Line Items]
Held-to-maturity securities, amortized cost	152	0
Municipal bonds and notes \| A1
Financing Receivable, Credit Quality Indicator [Line Items]
Held-to-maturity securities, amortized cost	12	0
Corporate bonds
Financing Receivable, Credit Quality Indicator [Line Items]
Held-to-maturity securities, amortized cost	373	0
Corporate bonds \| Aa1
Financing Receivable, Credit Quality Indicator [Line Items]
Held-to-maturity securities, amortized cost	10	0
Corporate bonds \| Aa2
Financing Receivable, Credit Quality Indicator [Line Items]
Held-to-maturity securities, amortized cost	28	0
Corporate bonds \| Aa3
Financing Receivable, Credit Quality Indicator [Line Items]
Held-to-maturity securities, amortized cost	24	0
Corporate bonds \| A1
Financing Receivable, Credit Quality Indicator [Line Items]
Held-to-maturity securities, amortized cost	158	0
Corporate bonds \| A2
Financing Receivable, Credit Quality Indicator [Line Items]
Held-to-maturity securities, amortized cost	$ 153	$ 0

Investment Securities - Summa_3

Investment Securities - Summary of Remaining Contractual Principal Maturities for Held-to-Maturity Securities (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Schedule of Held-to-maturity Securities [Line Items]
Fair Value	$ 60,107,000	$ 17,217,000
U.S. agency debentures
Schedule of Held-to-maturity Securities [Line Items]
Fair Value	571,000	421,000
Residential mortgage-backed securities \| Agency-issued mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Fair Value	36,616,000	7,978,000
Residential mortgage-backed securities \| Agency-issued collateralized mortgage obligations—fixed rate
Schedule of Held-to-maturity Securities [Line Items]
Fair Value	4,480,000	1,758,000
Residential mortgage-backed securities \| Agency-issued collateralized mortgage obligations—variable rate
Schedule of Held-to-maturity Securities [Line Items]
Fair Value	118,000	138,000
Agency-issued commercial mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Fair Value	12,507,000	3,067,000
Municipal bonds and notes
Schedule of Held-to-maturity Securities [Line Items]
Fair Value	5,438,000	$ 3,855,000
After One Year to Five Years, Amortized Cost	113,000
After Five Years to Ten Years, Amortized Cost	833,000
Corporate bonds
Schedule of Held-to-maturity Securities [Line Items]
Fair Value	377,000
After One Year to Five Years, Amortized Cost	0
After Five Years to Ten Years, Amortized Cost	373,000
Held-to-maturity Securities
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	59,997,000
Fair Value	60,107,000
One Year or Less, Amortized Cost	68,000
One Year or Less, Fair Value	69,000
After One Year to Five Years, Amortized Cost	268,000
After One Year to Five Years, Fair Value	278,000
After Five Years to Ten Years, Amortized Cost	3,001,000
After Five Years to Ten Years, Fair Value	3,111,000
After Ten Years, Amortized Cost	56,660,000
After Ten Years, Fair Value	$ 56,649,000
Held-to-maturity Securities \| Lower Limit
Schedule of Held-to-maturity Securities [Line Items]
Mortgage-backed securities contractual maturities (in years)	10 years
Held-to-maturity Securities \| Upper Limit
Schedule of Held-to-maturity Securities [Line Items]
Mortgage-backed securities contractual maturities (in years)	30 years
Held-to-maturity Securities \| U.S. agency debentures
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	$ 552,000
Fair Value	571,000
One Year or Less, Amortized Cost	4,000
One Year or Less, Fair Value	4,000
After One Year to Five Years, Amortized Cost	141,000
After One Year to Five Years, Fair Value	146,000
After Five Years to Ten Years, Amortized Cost	407,000
After Five Years to Ten Years, Fair Value	421,000
After Ten Years, Amortized Cost	0
After Ten Years, Fair Value	0
Held-to-maturity Securities \| Residential mortgage-backed securities \| Agency-issued mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	36,724,000
Fair Value	36,616,000
One Year or Less, Amortized Cost	3,000
One Year or Less, Fair Value	4,000
After One Year to Five Years, Amortized Cost	9,000
After One Year to Five Years, Fair Value	9,000
After Five Years to Ten Years, Amortized Cost	449,000
After Five Years to Ten Years, Fair Value	465,000
After Ten Years, Amortized Cost	36,263,000
After Ten Years, Fair Value	36,138,000
Held-to-maturity Securities \| Residential mortgage-backed securities \| Agency-issued collateralized mortgage obligations—fixed rate
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	4,474,000
Fair Value	4,480,000
One Year or Less, Amortized Cost	0
One Year or Less, Fair Value	0
After One Year to Five Years, Amortized Cost	5,000
After One Year to Five Years, Fair Value	5,000
After Five Years to Ten Years, Amortized Cost	404,000
After Five Years to Ten Years, Fair Value	413,000
After Ten Years, Amortized Cost	4,065,000
After Ten Years, Fair Value	4,062,000
Held-to-maturity Securities \| Residential mortgage-backed securities \| Agency-issued collateralized mortgage obligations—variable rate
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	117,000
Fair Value	118,000
One Year or Less, Amortized Cost	0
One Year or Less, Fair Value	0
After One Year to Five Years, Amortized Cost	0
After One Year to Five Years, Fair Value	0
After Five Years to Ten Years, Amortized Cost	0
After Five Years to Ten Years, Fair Value	0
After Ten Years, Amortized Cost	117,000
After Ten Years, Fair Value	118,000
Held-to-maturity Securities \| Agency-issued commercial mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	12,492,000
Fair Value	12,507,000
One Year or Less, Amortized Cost	0
One Year or Less, Fair Value	0
After One Year to Five Years, Amortized Cost	0
After One Year to Five Years, Fair Value	0
After Five Years to Ten Years, Amortized Cost	535,000
After Five Years to Ten Years, Fair Value	554,000
After Ten Years, Amortized Cost	11,957,000
After Ten Years, Fair Value	11,953,000
Held-to-maturity Securities \| Municipal bonds and notes
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	5,265,000
Fair Value	5,438,000
One Year or Less, Amortized Cost	61,000
One Year or Less, Fair Value	61,000
After One Year to Five Years, Fair Value	118,000
After Five Years to Ten Years, Fair Value	881,000
After Ten Years, Amortized Cost	4,258,000
After Ten Years, Fair Value	4,378,000
Held-to-maturity Securities \| Corporate bonds
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	373,000
Fair Value	377,000
One Year or Less, Amortized Cost	0
One Year or Less, Fair Value	0
After One Year to Five Years, Fair Value	0
After Five Years to Ten Years, Fair Value	377,000
After Ten Years, Amortized Cost	0
After Ten Years, Fair Value	$ 0

Investment Securities - Compo_3

Investment Securities - Components of Non-marketable and Other Equity Securities (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Investment Holdings [Line Items]
Investments in qualified affordable housing projects, net	$ 696	$ 616
Non-marketable and other equity securities	1,943	1,802
Fair value accounting \| Consolidated venture capital and private equity fund investments
Investment Holdings [Line Items]
Nonmarketable securities	108	89
Fair value accounting \| Unconsolidated venture capital and private equity fund investments
Investment Holdings [Line Items]
Nonmarketable securities	187	185
Fair value accounting \| Equity securities
Investment Holdings [Line Items]
Other equity securities in public companies (fair value accounting)	107	281
Fair value accounting \| Other investments
Investment Holdings [Line Items]
Nonmarketable securities	79	61
Equity method accounting \| Consolidated venture capital and private equity fund investments
Investment Holdings [Line Items]
Nonmarketable securities	544	362
Equity method accounting \| Unconsolidated venture capital and private equity fund investments
Investment Holdings [Line Items]
Nonmarketable securities	544	362
Equity method accounting \| Debt funds
Investment Holdings [Line Items]
Nonmarketable securities	7	5
Equity method accounting \| Other investments
Investment Holdings [Line Items]
Nonmarketable securities	$ 215	$ 203

Investment Securities - Summa_4

Investment Securities - Summary of Venture Capital and Private Equity Fund Investments Held by Consolidated Funds and Percentage Ownership (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Fair value accounting \| Consolidated venture capital and private equity fund investments
Investment Holdings [Line Items]
Nonmarketable securities	$ 108	$ 89

Investment Securities - Non-mar

Investment Securities - Non-marketable and Other Securities Additional Information (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021USD ($)Investment	Jun. 30, 2020USD ($)	Jun. 30, 2021USD ($)Investment	Jun. 30, 2020USD ($)	Dec. 31, 2020USD ($)Investment
Investment Holdings [Line Items]
Investments in qualified affordable housing projects, net	$ 696		$ 696		$ 616
Other liabilities	415		415		370
Tax credits and other tax benefits recognized	26	$ 20	54	$ 31
Amortization expense included in provision for income taxes	14	$ 10	30	$ 22
Fair value accounting \| Unconsolidated venture capital and private equity fund investments
Investment Holdings [Line Items]
Nonmarketable securities	$ 187		$ 187		$ 185
Upper Limit
Investment Holdings [Line Items]
Percentage of ownership	5.00%
Non-marketable securities \| Fair value accounting \| Unconsolidated venture capital and private equity fund investments
Investment Holdings [Line Items]
Number of investments \| Investment	157		157		162

Investment Securities - Changes

Investment Securities - Changes to Carrying Amount of Other Investments without Readily Determinable Fair Value (Details) $ in Millions	6 Months Ended
	Jun. 30, 2021USD ($)
Investments, Debt and Equity Securities [Abstract]
June 30, 2021	$ 79
Year End Adjustments:
Impairment	0
Upward changes for observable prices	12
Downward changes for observable prices	(2)
Cumulative Adjustments
Impairment	(1)
Upward changes for observable prices	16
Downward changes for observable prices	$ (6)

Investment Securities - Carryin

Investment Securities - Carrying Value and Ownership Percentage of Investments (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Consolidated venture capital and private equity fund investments \| Fair value accounting
Investment Holdings [Line Items]
Nonmarketable securities	$ 108		$ 89
Consolidated venture capital and private equity fund investments \| Fair value accounting \| Strategic Investors Fund, LP
Investment Holdings [Line Items]
Nonmarketable securities	5		5
Consolidated venture capital and private equity fund investments \| Fair value accounting \| Capital Preferred Return Fund, LP
Investment Holdings [Line Items]
Nonmarketable securities	51		50
Consolidated venture capital and private equity fund investments \| Fair value accounting \| Growth Partners, LP
Investment Holdings [Line Items]
Nonmarketable securities	52		34
Consolidated venture capital and private equity fund investments \| Equity method accounting
Investment Holdings [Line Items]
Nonmarketable securities	544		362
Consolidated venture capital and private equity fund investments \| Equity method accounting \| Strategic Investors Fund II, LP
Investment Holdings [Line Items]
Nonmarketable securities	4		4
Consolidated venture capital and private equity fund investments \| Equity method accounting \| Strategic Investors Fund III, LP
Investment Holdings [Line Items]
Nonmarketable securities	28		16
Consolidated venture capital and private equity fund investments \| Equity method accounting \| Strategic Investors Fund IV, LP
Investment Holdings [Line Items]
Nonmarketable securities	36		25
Consolidated venture capital and private equity fund investments \| Equity method accounting \| Strategic Investors Fund V funds
Investment Holdings [Line Items]
Nonmarketable securities	87		67
Consolidated venture capital and private equity fund investments \| Equity method accounting \| CP II, LP
Investment Holdings [Line Items]
Nonmarketable securities	8		8
Consolidated venture capital and private equity fund investments \| Equity method accounting \| Other venture capital and private equity fund investments
Investment Holdings [Line Items]
Nonmarketable securities	381		242
Debt funds \| Equity method accounting
Investment Holdings [Line Items]
Nonmarketable securities	7		5
Debt funds \| Equity method accounting \| Gold Hill Capital 2008, LP
Investment Holdings [Line Items]
Nonmarketable securities	5		4
Debt funds \| Equity method accounting \| Other debt funds
Investment Holdings [Line Items]
Nonmarketable securities	2		1
Other investments \| Fair value accounting
Investment Holdings [Line Items]
Nonmarketable securities	79		61
Other investments \| Equity method accounting
Investment Holdings [Line Items]
Nonmarketable securities	215		203
Other investments \| Equity method accounting \| SPD Silicon Valley Bank Co., Ltd.
Investment Holdings [Line Items]
Nonmarketable securities	115		115
Other investments \| Equity method accounting \| Other investments
Investment Holdings [Line Items]
Nonmarketable securities	$ 100		$ 88
Non-marketable securities \| Consolidated venture capital and private equity fund investments \| Fair value accounting \| Strategic Investors Fund, LP
Investment Holdings [Line Items]
Percentage of ownership	12.60%	12.60%
Non-marketable securities \| Consolidated venture capital and private equity fund investments \| Fair value accounting \| Capital Preferred Return Fund, LP
Investment Holdings [Line Items]
Percentage of ownership	20.00%	20.00%
Non-marketable securities \| Consolidated venture capital and private equity fund investments \| Fair value accounting \| Growth Partners, LP
Investment Holdings [Line Items]
Percentage of ownership	33.00%	33.00%
Non-marketable securities \| Consolidated venture capital and private equity fund investments \| Equity method accounting \| Strategic Investors Fund II, LP
Investment Holdings [Line Items]
Percentage of ownership	8.60%	8.60%
Non-marketable securities \| Consolidated venture capital and private equity fund investments \| Equity method accounting \| Strategic Investors Fund III, LP
Investment Holdings [Line Items]
Percentage of ownership	5.90%	5.90%
Non-marketable securities \| Consolidated venture capital and private equity fund investments \| Equity method accounting \| Strategic Investors Fund IV, LP
Investment Holdings [Line Items]
Percentage of ownership	5.00%	5.00%
Non-marketable securities \| Consolidated venture capital and private equity fund investments \| Equity method accounting \| CP II, LP
Investment Holdings [Line Items]
Percentage of ownership	5.10%	5.10%
Non-marketable securities \| Consolidated venture capital and private equity fund investments \| Equity method accounting \| CP II, LP \| Direct ownership interest
Investment Holdings [Line Items]
Percentage of ownership	1.30%
Non-marketable securities \| Consolidated venture capital and private equity fund investments \| Equity method accounting \| CP II, LP \| Indirect ownership interest
Investment Holdings [Line Items]
Percentage of ownership	3.80%
Non-marketable securities \| Debt funds \| Equity method accounting \| Direct ownership interest
Investment Holdings [Line Items]
Percentage of ownership	11.50%
Non-marketable securities \| Debt funds \| Equity method accounting \| Indirect ownership interest
Investment Holdings [Line Items]
Percentage of ownership	4.00%
Non-marketable securities \| Debt funds \| Equity method accounting \| Gold Hill Capital 2008, LP
Investment Holdings [Line Items]
Percentage of ownership	15.50%	15.50%
Non-marketable securities \| Other investments \| Equity method accounting \| SPD Silicon Valley Bank Co., Ltd.
Investment Holdings [Line Items]
Percentage of ownership	50.00%	50.00%

Investment Securities - Net Gai

Investment Securities - Net Gains on Non-marketable and Other Equity Securities (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Gain (Loss) on Securities [Line Items]
Total net gains on non-marketable and other equity securities	$ 305	$ 35	$ 472	$ 20
Non-marketable securities
Gain (Loss) on Securities [Line Items]
Less: realized net gains on sales of non-marketable and other equity securities	61	0	127	0
Net gains on non-marketable and other equity securities still held	244	35	345	20
Non-marketable securities \| Fair value accounting \| Consolidated venture capital and private equity fund investments
Gain (Loss) on Securities [Line Items]
Total net gains on non-marketable and other equity securities	19	1	36	4
Non-marketable securities \| Fair value accounting \| Unconsolidated venture capital and private equity fund investments
Gain (Loss) on Securities [Line Items]
Total net gains on non-marketable and other equity securities	15	(2)	32	(1)
Non-marketable securities \| Fair value accounting \| Other investments
Gain (Loss) on Securities [Line Items]
Total net gains on non-marketable and other equity securities	(1)	(1)	12	(4)
Non-marketable securities \| Equity method accounting \| Consolidated venture capital and private equity fund investments
Gain (Loss) on Securities [Line Items]
Total net gains on non-marketable and other equity securities	250	26	295	18
Non-marketable securities \| Equity method accounting \| Debt funds
Gain (Loss) on Securities [Line Items]
Total net gains on non-marketable and other equity securities	1	0	2	0
Non-marketable securities \| Equity method accounting \| Other investments
Gain (Loss) on Securities [Line Items]
Total net gains on non-marketable and other equity securities	3	(2)	3	(3)
Other equity securities \| Fair value accounting
Gain (Loss) on Securities [Line Items]
Total net gains on non-marketable and other equity securities	$ 18	$ 13	$ 92	$ 6

Loans, Allowance for Loan Los_3

Loans, Allowance for Loan Losses and Allowance for Unfunded Credit Commitments - Composition of Loans, Net of Unearned Income (Details) - USD ($) $ in Millions	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	$ 50,754		$ 45,181
ACL	(396)	$ (392)	(448)	$ (590)	$ (549)	$ (305)
Net loans	50,358		44,733
Global fund banking
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	30,630		25,543
Investor dependent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	5,328		4,972
ACL	(158)	(168)	(213)	(292)	(276)	(82)
Investor dependent \| Early stage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	1,565		1,486
ACL	(55)	(62)	(86)	(148)	(127)	(26)
Investor dependent \| Mid stage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	1,708		1,565
Investor dependent \| Later stage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	2,055		1,921
Cash flow dependent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	4,843		4,934
Cash flow dependent \| Sponsor led buyout
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	1,917		1,989
Cash flow dependent \| Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	2,926		2,945
Private bank
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	5,297		4,901
ACL	(47)	$ (44)	(53)	$ (91)	$ (88)	$ (22)
Balance sheet dependent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	2,804		2,191
Premium wine
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	1,002		1,053
Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	7		28
SBA loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	$ 843		$ 1,559

Loans, Allowance for Loan Los_4

Loans, Allowance for Loan Losses and Allowance for Unfunded Credit Commitments - Composition of Loans, Net of Unearned Income (Additional Information) (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unearned income on loans	$ 248	$ 226
Loans, at amortized cost	50,754	45,181
Credit cards
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	509	400
Construction loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	84	118
Private bank
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	5,297	4,901
Premium wine
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	1,002	1,053
Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	7	28
Real estate secured loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	5,253	4,940
Real estate secured loans \| Private bank
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	4,412	4,059
Real estate secured loans \| Private bank \| Loans for personal residence
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	3,773	3,392
Real estate secured loans \| Private bank \| Loans to eligible employees
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	447	481
Real estate secured loans \| Private bank \| Home equity lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	61	43
Real estate secured loans \| Private bank \| Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	131	143
Real estate secured loans \| Premium wine
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	807	824
Real estate secured loans \| Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	$ 34	$ 57

Loans, Allowance for Loan Los_5

Loans, Allowance for Loan Losses and Allowance for Unfunded Credit Commitments - Credit Quality Indicators, Broken out by Risk-Based Segments (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	$ 50,754	$ 45,181
Global fund banking
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	30,630	25,543
Global fund banking \| Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	0	0
Global fund banking \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	30,623	25,537
Global fund banking \| Criticized
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	7	6
Investor dependent
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	5,328	4,972
Investor dependent \| Early stage
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	1,565	1,486
Investor dependent \| Mid stage
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	1,708	1,565
Investor dependent \| Later stage
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	2,055	1,921
Investor dependent \| Nonperforming \| Early stage
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	11	18
Investor dependent \| Nonperforming \| Mid stage
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	5	4
Investor dependent \| Nonperforming \| Later stage
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	21	29
Investor dependent \| Pass \| Early stage
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	1,357	1,289
Investor dependent \| Pass \| Mid stage
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	1,603	1,421
Investor dependent \| Pass \| Later stage
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	1,965	1,745
Investor dependent \| Criticized \| Early stage
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	197	179
Investor dependent \| Criticized \| Mid stage
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	100	140
Investor dependent \| Criticized \| Later stage
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	69	147
Cash flow dependent
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	4,843	4,934
Cash flow dependent \| Sponsor led buyout
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	1,917	1,989
Cash flow dependent \| Other
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	2,926	2,945
Cash flow dependent \| Nonperforming \| Sponsor led buyout
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	34	40
Cash flow dependent \| Nonperforming \| Other
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	1	6
Cash flow dependent \| Pass \| Sponsor led buyout
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	1,786	1,796
Cash flow dependent \| Pass \| Other
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	2,705	2,677
Cash flow dependent \| Criticized \| Sponsor led buyout
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	97	153
Cash flow dependent \| Criticized \| Other
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	220	262
Private bank
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	5,297	4,901
Private bank \| Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	7	6
Private bank \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	5,259	4,862
Private bank \| Criticized
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	31	33
Balance sheet dependent
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	2,804	2,191
Balance sheet dependent \| Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	0	0
Balance sheet dependent \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	2,632	2,105
Balance sheet dependent \| Criticized
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	172	86
Premium wine
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	1,002	1,053
Premium wine \| Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	0	1
Premium wine \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	879	911
Premium wine \| Criticized
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	123	141
Other
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	7	28
Other \| Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	0	0
Other \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	7	28
Other \| Criticized
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	0	0
SBA loans
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	843	1,559
SBA loans \| Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	0	0
SBA loans \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	769	1,456
SBA loans \| Criticized
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, at amortized cost	$ 74	$ 103

Loans, Allowance for Loan Los_6

Loans, Allowance for Loan Losses and Allowance for Unfunded Credit Commitments - Credit Quality Indicators, Broken out by Risk-Based Segments and Vintage Year (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Financing Receivable, Credit Quality Indicator [Line Items]
2021	$ 5,395	$ 9,153
2020	6,745	4,008
2019	2,982	1,863
2018	1,255	934
2017	671	530
Prior	815	600
Revolving Loans	32,871	28,038
Revolving Loans Converted to Term Loans	47	55
Unallocated	(27)
Loans, amortized cost	50,754	45,181
Global fund banking
Financing Receivable, Credit Quality Indicator [Line Items]
2021	567	440
2020	165	48
2019	42	69
2018	55	23
2017	20	2
Prior	7	6
Revolving Loans	29,771	24,947
Revolving Loans Converted to Term Loans	3	8
Unallocated	0
Loans, amortized cost	30,630	25,543
Global fund banking \| Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	0
2020	0	0
2019	0	0
2018	0	0
2017	0	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	0	0
Global fund banking \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021	567	440
2020	165	48
2019	42	69
2018	55	23
2017	20	2
Prior	7	6
Revolving Loans	29,766	24,947
Revolving Loans Converted to Term Loans	1	2
Unallocated	0
Loans, amortized cost	30,623	25,537
Global fund banking \| Criticized
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	0
2020	0	0
2019	0	0
2018	0	0
2017	0	0
Prior	0	0
Revolving Loans	5	0
Revolving Loans Converted to Term Loans	2	6
Unallocated	0
Loans, amortized cost	7	6
Investor dependent
Financing Receivable, Credit Quality Indicator [Line Items]
2021	1,495	2,544
2020	2,190	1,254
2019	825	528
2018	259	116
2017	43	10
Prior	9	17
Revolving Loans	501	494
Revolving Loans Converted to Term Loans	6	9
Unallocated	0
Loans, amortized cost	5,328	4,972
Investor dependent \| Early stage
Financing Receivable, Credit Quality Indicator [Line Items]
2021	400	716
2020	614	452
2019	293	152
2018	71	43
2017	12	5
Prior	5	1
Revolving Loans	169	116
Revolving Loans Converted to Term Loans	1	1
Unallocated	0
Loans, amortized cost	1,565	1,486
Investor dependent \| Early stage \| Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	2
2020	1	9
2019	5	5
2018	4	1
2017	0	0
Prior	0	0
Revolving Loans	1	1
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	11	18
Investor dependent \| Early stage \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021	392	667
2020	520	370
2019	237	121
2018	53	32
2017	10	1
Prior	0	1
Revolving Loans	144	96
Revolving Loans Converted to Term Loans	1	1
Unallocated	0
Loans, amortized cost	1,357	1,289
Investor dependent \| Early stage \| Criticized
Financing Receivable, Credit Quality Indicator [Line Items]
2021	8	47
2020	93	73
2019	51	26
2018	14	10
2017	2	4
Prior	5	0
Revolving Loans	24	19
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	197	179
Investor dependent \| Mid stage
Financing Receivable, Credit Quality Indicator [Line Items]
2021	513	883
2020	703	351
2019	226	172
2018	122	34
2017	19	5
Prior	2	6
Revolving Loans	118	111
Revolving Loans Converted to Term Loans	5	3
Unallocated	0
Loans, amortized cost	1,708	1,565
Investor dependent \| Mid stage \| Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	0
2020	0	1
2019	2	0
2018	3	3
2017	0	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	5	4
Investor dependent \| Mid stage \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021	505	840
2020	654	302
2019	215	146
2018	106	23
2017	16	5
Prior	2	1
Revolving Loans	100	101
Revolving Loans Converted to Term Loans	5	3
Unallocated	0
Loans, amortized cost	1,603	1,421
Investor dependent \| Mid stage \| Criticized
Financing Receivable, Credit Quality Indicator [Line Items]
2021	8	43
2020	49	48
2019	9	26
2018	13	8
2017	3	0
Prior	0	5
Revolving Loans	18	10
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	100	140
Investor dependent \| Later stage
Financing Receivable, Credit Quality Indicator [Line Items]
2021	582	945
2020	873	451
2019	306	204
2018	66	39
2017	12	0
Prior	2	10
Revolving Loans	214	267
Revolving Loans Converted to Term Loans	0	5
Unallocated	0
Loans, amortized cost	2,055	1,921
Investor dependent \| Later stage \| Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	17
2020	15	2
2019	0	4
2018	0	0
2017	0	0
Prior	0	0
Revolving Loans	6	6
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	21	29
Investor dependent \| Later stage \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021	576	906
2020	829	394
2019	290	170
2018	63	38
2017	10	0
Prior	2	8
Revolving Loans	195	224
Revolving Loans Converted to Term Loans	0	5
Unallocated	0
Loans, amortized cost	1,965	1,745
Investor dependent \| Later stage \| Criticized
Financing Receivable, Credit Quality Indicator [Line Items]
2021	6	22
2020	29	55
2019	16	30
2018	3	1
2017	2	0
Prior	0	2
Revolving Loans	13	37
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	69	147
Cash flow dependent
Financing Receivable, Credit Quality Indicator [Line Items]
2021	1,128	1,690
2020	1,292	1,115
2019	735	547
2018	365	333
2017	245	89
Prior	17	0
Revolving Loans	1,061	1,160
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	4,843	4,934
Cash flow dependent \| Sponsor led buyout
Financing Receivable, Credit Quality Indicator [Line Items]
2021	588	791
2020	562	534
2019	368	329
2018	191	196
2017	137	50
Prior	17	0
Revolving Loans	54	89
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	1,917	1,989
Cash flow dependent \| Sponsor led buyout \| Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	0
2020	0	12
2019	12	16
2018	10	7
2017	7	0
Prior	0	0
Revolving Loans	5	5
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	34	40
Cash flow dependent \| Sponsor led buyout \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021	588	791
2020	548	452
2019	341	274
2018	141	167
2017	120	37
Prior	4	0
Revolving Loans	44	75
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	1,786	1,796
Cash flow dependent \| Sponsor led buyout \| Criticized
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	0
2020	14	70
2019	15	39
2018	40	22
2017	10	13
Prior	13	0
Revolving Loans	5	9
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	97	153
Cash flow dependent \| Other
Financing Receivable, Credit Quality Indicator [Line Items]
2021	540	899
2020	730	581
2019	367	218
2018	174	137
2017	108	39
Prior	0	0
Revolving Loans	1,007	1,071
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	2,926	2,945
Cash flow dependent \| Other \| Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	0
2020	0	0
2019	0	5
2018	0	0
2017	0	0
Prior	0	0
Revolving Loans	1	1
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	1	6
Cash flow dependent \| Other \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021	540	880
2020	720	513
2019	332	179
2018	137	133
2017	108	39
Prior	0	0
Revolving Loans	868	933
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	2,705	2,677
Cash flow dependent \| Other \| Criticized
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	19
2020	10	68
2019	35	34
2018	37	4
2017	0	0
Prior	0	0
Revolving Loans	138	137
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	220	262
Private bank
Financing Receivable, Credit Quality Indicator [Line Items]
2021	1,047	1,881
2020	1,749	1,163
2019	988	402
2018	330	354
2017	247	300
Prior	525	416
Revolving Loans	410	384
Revolving Loans Converted to Term Loans	1	1
Unallocated	0
Loans, amortized cost	5,297	4,901
Private bank \| Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	0
2020	0	0
2019	0	3
2018	6	0
2017	0	0
Prior	1	2
Revolving Loans	0	1
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	7	6
Private bank \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021	1,047	1,878
2020	1,748	1,153
2019	980	394
2018	321	353
2017	243	295
Prior	513	406
Revolving Loans	406	382
Revolving Loans Converted to Term Loans	1	1
Unallocated	0
Loans, amortized cost	5,259	4,862
Private bank \| Criticized
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	3
2020	1	10
2019	8	5
2018	3	1
2017	4	5
Prior	11	8
Revolving Loans	4	1
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	31	33
Balance sheet dependent
Financing Receivable, Credit Quality Indicator [Line Items]
2021	657	894
2020	793	194
2019	172	199
2018	158	19
2017	31	0
Prior	0	0
Revolving Loans	992	884
Revolving Loans Converted to Term Loans	1	1
Unallocated	0
Loans, amortized cost	2,804	2,191
Balance sheet dependent \| Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	0
2020	0	0
2019	0	0
2018	0	0
2017	0	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	0	0
Balance sheet dependent \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021	657	838
2020	728	190
2019	130	199
2018	158	19
2017	31	0
Prior	0	0
Revolving Loans	928	858
Revolving Loans Converted to Term Loans	0	1
Unallocated	0
Loans, amortized cost	2,632	2,105
Balance sheet dependent \| Criticized
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	56
2020	65	4
2019	42	0
2018	0	0
2017	0	0
Prior	0	0
Revolving Loans	64	26
Revolving Loans Converted to Term Loans	1	0
Unallocated	0
Loans, amortized cost	172	86
Premium wine
Financing Receivable, Credit Quality Indicator [Line Items]
2021	54	145
2020	143	218
2019	207	107
2018	88	89
2017	84	129
Prior	257	160
Revolving Loans	133	169
Revolving Loans Converted to Term Loans	36	36
Unallocated	0
Loans, amortized cost	1,002	1,053
Premium wine \| Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	0
2020	0	0
2019	0	0
2018	0	0
2017	0	1
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	0	1
Premium wine \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021	52	127
2020	128	194
2019	195	71
2018	72	79
2017	74	115
Prior	210	154
Revolving Loans	112	135
Revolving Loans Converted to Term Loans	36	36
Unallocated	0
Loans, amortized cost	879	911
Premium wine \| Criticized
Financing Receivable, Credit Quality Indicator [Line Items]
2021	2	18
2020	15	24
2019	12	36
2018	16	10
2017	10	13
Prior	47	6
Revolving Loans	21	34
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	123	141
Other
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	0
2020	17	16
2019	13	11
2018	0	0
2017	1	0
Prior	0	1
Revolving Loans	3	0
Revolving Loans Converted to Term Loans	0	0
Unallocated	(27)
Loans, amortized cost	7	28
Other \| Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	0
2020	0	0
2019	0	0
2018	0	0
2017	0	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	0	0
Other \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	0
2020	17	16
2019	13	11
2018	0	0
2017	1	0
Prior	0	1
Revolving Loans	3	0
Revolving Loans Converted to Term Loans	0	0
Unallocated	(27)
Loans, amortized cost	7	28
Other \| Criticized
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	0
2020	0	0
2019	0	0
2018	0	0
2017	0	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	0	0
SBA loans
Financing Receivable, Credit Quality Indicator [Line Items]
2021	447	1,559
2020	396	0
2019	0	0
2018	0	0
2017	0	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	843	1,559
SBA loans \| Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	0
2020	0	0
2019	0	0
2018	0	0
2017	0	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	0	0
SBA loans \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021	401	1,456
2020	368	0
2019	0	0
2018	0	0
2017	0	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	769	1,456
SBA loans \| Criticized
Financing Receivable, Credit Quality Indicator [Line Items]
2021	46	103
2020	28	0
2019	0	0
2018	0	0
2017	0	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Unallocated	0
Loans, amortized cost	$ 74	$ 103

Loans, Allowance for Loan Los_7

Loans, Allowance for Loan Losses and Allowance for Unfunded Credit Commitments - Activity Relating to our Allowance for Credit Losses for Loans (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Financing Receivable, Allowance for Credit Loss [Line Items]
Increase in allowance for credit loss	$ 4
Allowance for credit loss, beginning balance	392	$ 549	$ 448	$ 305
Charge-offs	(15)	(15)	(110)	(52)
Recoveries	3	4	8	12
Provision (Reduction) for Credit Losses	16	52	50	301
Foreign Currency Translation Adjustments				(1)
Allowance for credit loss, ending balance	396	590	396	590
Accrued interest receivable and other assets \| Loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Accrued interest receivable	143		143		$ 126
Impact of adopting ASC 326
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, beginning balance				25
Investor dependent
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, beginning balance	168	276	213	82
Charge-offs	(6)	(6)	(20)	(39)
Recoveries	3	4	8	9
Provision (Reduction) for Credit Losses	(7)	18	(43)	170
Foreign Currency Translation Adjustments				(2)
Allowance for credit loss, ending balance	158	292	158	292
Investor dependent \| Impact of adopting ASC 326
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, beginning balance				72
Investor dependent \| Early stage
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, beginning balance	62	127	86	26
Charge-offs	(5)	(2)	(19)	(12)
Recoveries	2	3	3	4
Provision (Reduction) for Credit Losses	(4)	20	(15)	91
Foreign Currency Translation Adjustments				(1)
Allowance for credit loss, ending balance	55	148	55	148
Investor dependent \| Early stage \| Impact of adopting ASC 326
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, beginning balance				40
Investor dependent \| Growth Stage
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, beginning balance	106	149	127	56
Charge-offs	(1)	(4)	(1)	(27)
Recoveries	1	1	5	5
Provision (Reduction) for Credit Losses	(3)	(2)	(28)	79
Foreign Currency Translation Adjustments				(1)
Allowance for credit loss, ending balance	103	144	103	144
Investor dependent \| Growth Stage \| Impact of adopting ASC 326
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, beginning balance				32
Private bank
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, beginning balance	44	88	53	22
Charge-offs	(2)	(1)	(2)	(2)
Recoveries	0	0	0	0
Provision (Reduction) for Credit Losses	5	4	(4)	59
Foreign Currency Translation Adjustments				0
Allowance for credit loss, ending balance	47	91	47	91
Private bank \| Impact of adopting ASC 326
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, beginning balance				12
Global Fund Banking
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, beginning balance	60	57	46	107
Charge-offs	0	0	(80)	0
Recoveries	0	0	0	0
Provision (Reduction) for Credit Losses	6	(3)	100	17
Foreign Currency Translation Adjustments				0
Allowance for credit loss, ending balance	66	54	66	54
Global Fund Banking \| Impact of adopting ASC 326
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, beginning balance				(70)
Cash Flow And Balance Sheet Dependent
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, beginning balance	112	104	125	81
Charge-offs	(7)	(8)	(7)	(11)
Recoveries	0	0	0	3
Provision (Reduction) for Credit Losses	14	27	1	51
Foreign Currency Translation Adjustments				0
Allowance for credit loss, ending balance	119	123	119	123
Cash Flow And Balance Sheet Dependent \| Impact of adopting ASC 326
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, beginning balance				(1)
Premium Wine And Other
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, beginning balance	8	24	9	13
Charge-offs	0	0	(1)	0
Recoveries	0	0	0	0
Provision (Reduction) for Credit Losses	(2)	2	(2)	0
Foreign Currency Translation Adjustments				1
Allowance for credit loss, ending balance	6	26	6	26
Premium Wine And Other \| Impact of adopting ASC 326
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, beginning balance				12
SBA loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, beginning balance		0	2	0
Charge-offs		0	0	0
Recoveries		0	0	0
Provision (Reduction) for Credit Losses		4	(2)	4
Foreign Currency Translation Adjustments				0
Allowance for credit loss, ending balance	$ 0	$ 4	$ 0	4
SBA loans \| Impact of adopting ASC 326
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, beginning balance				$ 0

Loans, Allowance for Loan Los_8

Loans, Allowance for Loan Losses and Allowance for Unfunded Credit Commitments - Summary of the Aging of Loans Broken out by Risk-based Segments (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	$ 50,754	$ 45,181
Loans Past Due 90 Days or More Still Accruing Interest	3	0
30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	10	59
60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	6	7
Equal to or Greater Than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	4	2
Total Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	20	68
Current
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	50,734	45,113
Global Fund Banking
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	30,630	25,543
Loans Past Due 90 Days or More Still Accruing Interest	0	0
Global Fund Banking \| 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	0	28
Global Fund Banking \| 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	0	0
Global Fund Banking \| Equal to or Greater Than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	0	0
Global Fund Banking \| Total Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	0	28
Global Fund Banking \| Current
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	30,630	25,515
Investor dependent
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	5,328	4,972
Loans Past Due 90 Days or More Still Accruing Interest	0	0
Investor dependent \| 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	2	17
Investor dependent \| 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	2	2
Investor dependent \| Equal to or Greater Than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	1	1
Investor dependent \| Total Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	5	20
Investor dependent \| Current
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	5,323	4,952
Investor dependent \| Early stage
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	1,565	1,486
Loans Past Due 90 Days or More Still Accruing Interest	0	0
Investor dependent \| Early stage \| 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	1	6
Investor dependent \| Early stage \| 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	0	2
Investor dependent \| Early stage \| Equal to or Greater Than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	1	0
Investor dependent \| Early stage \| Total Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	2	8
Investor dependent \| Early stage \| Current
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	1,563	1,478
Investor dependent \| Mid stage
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	1,708	1,565
Loans Past Due 90 Days or More Still Accruing Interest	0	0
Investor dependent \| Mid stage \| 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	0	6
Investor dependent \| Mid stage \| 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	2	0
Investor dependent \| Mid stage \| Equal to or Greater Than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	0	1
Investor dependent \| Mid stage \| Total Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	2	7
Investor dependent \| Mid stage \| Current
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	1,706	1,558
Investor dependent \| Later stage
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	2,055	1,921
Loans Past Due 90 Days or More Still Accruing Interest	0	0
Investor dependent \| Later stage \| 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	1	5
Investor dependent \| Later stage \| 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	0	0
Investor dependent \| Later stage \| Equal to or Greater Than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	0	0
Investor dependent \| Later stage \| Total Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	1	5
Investor dependent \| Later stage \| Current
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	2,054	1,916
Cash flow dependent
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	4,843	4,934
Loans Past Due 90 Days or More Still Accruing Interest	0	0
Cash flow dependent \| 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	5	6
Cash flow dependent \| 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	0	0
Cash flow dependent \| Equal to or Greater Than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	0	0
Cash flow dependent \| Total Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	5	6
Cash flow dependent \| Current
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	4,838	4,928
Cash flow dependent \| Sponsor led buyout
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	1,917	1,989
Loans Past Due 90 Days or More Still Accruing Interest	0	0
Cash flow dependent \| Sponsor led buyout \| 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	0	0
Cash flow dependent \| Sponsor led buyout \| 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	0	0
Cash flow dependent \| Sponsor led buyout \| Equal to or Greater Than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	0	0
Cash flow dependent \| Sponsor led buyout \| Total Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	0	0
Cash flow dependent \| Sponsor led buyout \| Current
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	1,917	1,989
Cash flow dependent \| Other
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	2,926	2,945
Loans Past Due 90 Days or More Still Accruing Interest	0	0
Cash flow dependent \| Other \| 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	5	6
Cash flow dependent \| Other \| 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	0	0
Cash flow dependent \| Other \| Equal to or Greater Than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	0	0
Cash flow dependent \| Other \| Total Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	5	6
Cash flow dependent \| Other \| Current
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	2,921	2,939
Private bank
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	5,297	4,901
Loans Past Due 90 Days or More Still Accruing Interest	2	0
Private bank \| 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	0	4
Private bank \| 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	0	4
Private bank \| Equal to or Greater Than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	2	0
Private bank \| Total Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	2	8
Private bank \| Current
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	5,295	4,893
Balance sheet dependent
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	2,804	2,191
Loans Past Due 90 Days or More Still Accruing Interest	0	0
Balance sheet dependent \| 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	1	1
Balance sheet dependent \| 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	3	1
Balance sheet dependent \| Equal to or Greater Than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	0	0
Balance sheet dependent \| Total Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	4	2
Balance sheet dependent \| Current
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	2,800	2,189
Premium wine
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	1,002	1,053
Loans Past Due 90 Days or More Still Accruing Interest	0	0
Premium wine \| 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	2	3
Premium wine \| 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	0	0
Premium wine \| Equal to or Greater Than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	0	1
Premium wine \| Total Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	2	4
Premium wine \| Current
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	1,000	1,049
Other
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	7	28
Loans Past Due 90 Days or More Still Accruing Interest	0	0
Other \| 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	0	0
Other \| 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	0	0
Other \| Equal to or Greater Than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	0	0
Other \| Total Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	0	0
Other \| Current
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	7	28
SBA loans
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	843	1,559
Loans Past Due 90 Days or More Still Accruing Interest	1	0
SBA loans \| 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	0	0
SBA loans \| 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	1	0
SBA loans \| Equal to or Greater Than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	1	0
SBA loans \| Total Past Due
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	2	0
SBA loans \| Current
Financing Receivable, Past Due [Line Items]
Loans, amortized cost	$ 841	$ 1,559

Loans, Allowance for Loan Los_9

Loans, Allowance for Loan Losses and Allowance for Unfunded Credit Commitments - Nonaccrual Loans with No Allowance for Credit Loss (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Loans	$ 79	$ 104
Nonaccrual Loans with no Allowance for Credit Loss	6	8
Investor dependent
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Loans	37	51
Nonaccrual Loans with no Allowance for Credit Loss	3	3
Cash flow dependent
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Loans	35	46
Nonaccrual Loans with no Allowance for Credit Loss	1	1
Private bank
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Loans	7	6
Nonaccrual Loans with no Allowance for Credit Loss	2	3
Premium wine
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Loans	0	1
Nonaccrual Loans with no Allowance for Credit Loss	0	1
Early stage \| Investor dependent
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Loans	11	18
Nonaccrual Loans with no Allowance for Credit Loss	3	0
Mid stage \| Investor dependent
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Loans	5	4
Nonaccrual Loans with no Allowance for Credit Loss	0	3
Later stage \| Investor dependent
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Loans	21	29
Nonaccrual Loans with no Allowance for Credit Loss	0	0
Sponsor led buyout \| Cash flow dependent
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Loans	34	40
Nonaccrual Loans with no Allowance for Credit Loss	0	0
Other \| Cash flow dependent
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Loans	1	6
Nonaccrual Loans with no Allowance for Credit Loss	$ 1	$ 1

Loans, Allowance for Loan Lo_10

Loans, Allowance for Loan Losses and Allowance for Unfunded Credit Commitments - Summary of Loans Modified in Troubled Debt Restructurings (TDRs) (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021USD ($)	Jun. 30, 2020USD ($)	Jun. 30, 2021USD ($)troubled_debt_restructuring	Jun. 30, 2020USD ($)	Dec. 31, 2020USD ($)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of TDRs \| troubled_debt_restructuring			12
Loans modified in TDRs	$ 61		$ 61		$ 61
Unfunded commitments available for funding associated with TDRs	0		0
Partial charge-offs on loans classified as TDRs	6	$ 5	7	$ 18
Investor dependent
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs	21		21		36
Investor dependent \| Early stage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs	1		1		7
Investor dependent \| Mid stage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs	5		5		4
Investor dependent \| Later stage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs	15		15		25
Cash flow dependent
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs	35		35		23
Cash flow dependent \| Sponsor led buyout
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs	34		34		22
Cash flow dependent \| Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs	1		1		1
Private bank
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs	3		3		0
Premium wine
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs	$ 2		$ 2		$ 2

Loans, Allowance for Loan Lo_11

Loans, Allowance for Loan Losses and Allowance for Unfunded Credit Commitments - Recorded Investment in Loans Modified in TDRs (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs during the period (less than for six months ended June 30, 2020 for forgiveness of principal)	$ 2,000,000	$ 14,000,000	$ 17,000,000	$ 23,000,000
Payment deferrals
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs during the period (less than for six months ended June 30, 2020 for forgiveness of principal)	1,000,000	14,000,000	14,000,000	23,000,000
Principal forgiveness
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs during the period (less than for six months ended June 30, 2020 for forgiveness of principal)	1,000,000	0	3,000,000	1,000,000
Investor dependent
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs during the period (less than for six months ended June 30, 2020 for forgiveness of principal)	1,000,000	9,000,000	1,000,000	18,000,000
Investor dependent \| Early stage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs during the period (less than for six months ended June 30, 2020 for forgiveness of principal)	1,000,000	0	1,000,000	0
Investor dependent \| Mid stage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs during the period (less than for six months ended June 30, 2020 for forgiveness of principal)	0	5,000,000	0	11,000,000
Investor dependent \| Later stage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs during the period (less than for six months ended June 30, 2020 for forgiveness of principal)	0	4,000,000	0	7,000,000
Cash flow dependent
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs during the period (less than for six months ended June 30, 2020 for forgiveness of principal)	0	4,000,000	13,000,000	4,000,000
Cash flow dependent \| Sponsor led buyout
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs during the period (less than for six months ended June 30, 2020 for forgiveness of principal)	0	0	13,000,000	0
Cash flow dependent \| Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs during the period (less than for six months ended June 30, 2020 for forgiveness of principal)	0	4,000,000	0	4,000,000
Private bank
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs during the period (less than for six months ended June 30, 2020 for forgiveness of principal)	1,000,000	0	3,000,000	0
Premium wine
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified in TDRs during the period (less than for six months ended June 30, 2020 for forgiveness of principal)	$ 0	$ 1,000,000	$ 0	$ 1,000,000

Loans, Allowance for Loan Lo_12

Loans, Allowance for Loan Losses and Allowance for Unfunded Credit Commitments - Recorded Investment in Loans Modified in TDRs within Previous 12 months Subsequently Defaulted (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment in loans modified in TDRs	$ 0	$ 10	$ 0	$ 10
Cash flow dependent
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment in loans modified in TDRs	0	10	0	10
Cash flow dependent \| Sponsor led buyout
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment in loans modified in TDRs	$ 0	$ 10	$ 0	$ 10

Loans, Allowance for Loan Lo_13

Loans, Allowance for Loan Losses and Allowance for Unfunded Credit Commitments - Allowance for Credit Losses: Unfunded Credit Commitments (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, beginning balance	$ 392	$ 549	$ 448	$ 305
Provision of credit losses	16	52	50	301
Allowance for credit loss, ending balance	396	590	396	590
Cumulative adjustment for the adoption of amendment
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, beginning balance				25
Unfunded Credit Commitments
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, beginning balance	105	85	121	67
Provision of credit losses	15	14	(1)	9
Allowance for credit loss, ending balance	120	99	120	99
Unfunded Credit Commitments \| Cumulative adjustment for the adoption of amendment
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss, beginning balance	$ 0	$ 0	$ 0	$ 23

Goodwill and Other Intangible_3

Goodwill and Other Intangible Assets - Narrative (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	$ 143	$ 143
Amortization expense	$ 4

Goodwill and Other Intangible_4

Goodwill and Other Intangible Assets - Other Intangible Assets (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Other intangible assets:
Estimated Fair Value	$ 78	$ 78
Accumulated Amortization	21	17
Net Carrying Amount	57	61
Customer relationships
Other intangible assets:
Estimated Fair Value	42	42
Accumulated Amortization	10	8
Net Carrying Amount	32	34
Other
Other intangible assets:
Estimated Fair Value	36	36
Accumulated Amortization	11	9
Net Carrying Amount	$ 25	$ 27

Goodwill and Other Intangible_5

Goodwill and Other Intangible Assets - Future Amortization Expense (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
2021 (excluding the six months ended June 30, 2021)	$ 4
2022	8
2023	8
2024	8
2025	7
2026 and thereafter	22
Net Carrying Amount	$ 57	$ 61

Short-Term Borrowings and Lon_3

Short-Term Borrowings and Long-Term Debt - Outstanding Short Term Borrowings and Long Term Debt (Details) - USD ($)	3 Months Ended
	Jun. 30, 2021	May 13, 2021	Feb. 02, 2021	Dec. 31, 2020	Jun. 05, 2020	Jan. 31, 2015
Debt Outstanding [Line Items]
Short-term borrowings	$ 34,000,000			$ 21,000,000
Long-term debt	$ 1,834,000,000			844,000,000
Senior Notes \| 3.50% Senior Notes
Debt Outstanding [Line Items]
Maturity Date	Jan. 29, 2025
Principal value at period end	$ 350,000,000					$ 350,000,000
Long-term debt	$ 349,000,000			$ 349,000,000
Interest rate on senior notes	3.50%			3.50%		3.50%
Senior Notes \| 3.125% Senior Notes
Debt Outstanding [Line Items]
Maturity Date	Jun. 5, 2030
Principal value at period end	$ 500,000,000				$ 500,000,000
Long-term debt	$ 495,000,000			$ 495,000,000
Interest rate on senior notes	3.125%				3.125%
Senior Notes \| 1.800% Senior Notes
Debt Outstanding [Line Items]
Maturity Date	Feb. 2, 2031
Principal value at period end			$ 500,000,000
Long-term debt	$ 494,000,000			0
Interest rate on senior notes	1.80%		1.80%
Senior Notes \| 2.100% Senior Notes
Debt Outstanding [Line Items]
Maturity Date	May 15, 2028
Principal value at period end		$ 500,000,000	$ 500,000,000
Long-term debt	$ 496,000,000			0
Interest rate on senior notes	2.10%	2.10%
Other short-term borrowings
Debt Outstanding [Line Items]
Principal value at period end	$ 34,000,000
Short-term borrowings	$ 34,000,000			$ 21,000,000

Short-Term Borrowings and Lon_4

Short-Term Borrowings and Long-Term Debt - Outstanding Short Term Borrowings and Long Term Debt (Additional Information) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Debt Disclosure [Abstract]
Interest expense on debt	$ 11	$ 5	$ 20	$ 11
Weighted average interest rate on short-term borrowings	80.00%		80.00%		80.00%

Short-Term Borrowings and Lon_5

Short-Term Borrowings and Long-Term Debt - Short-term Borrowings (Details) $ in Billions	Jun. 30, 2021USD ($)
Short-term FHLB advances
Debt Disclosure [Line Items]
FHLB advances	$ 7.1
Unused borrowing capacity	5.9
Federal Reserve Bank Advances
Debt Disclosure [Line Items]
Line of credit, remaining borrowing capacity	0.9
Federal funds lines
Debt Disclosure [Line Items]
Line of credit, remaining borrowing capacity	1.9
Securities sold under agreement to repurchase
Debt Disclosure [Line Items]
Line of credit, remaining borrowing capacity	$ 4

Short-Term Borrowings and Lon_6

Short-Term Borrowings and Long-Term Debt - Senior Notes (Details) - USD ($)	May 13, 2021	Feb. 02, 2021	Jun. 05, 2020	Jan. 31, 2015	Jun. 30, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Long-term debt					$ 1,834,000,000	$ 844,000,000
Senior Notes \| 3.125% Senior Notes
Debt Instrument [Line Items]
Debt issuance, principal value			$ 500,000,000		$ 500,000,000
Interest rate on senior notes			3.125%		3.125%
Net proceeds from debt			$ 495,000,000
Long-term debt					$ 495,000,000	$ 495,000,000
Debt issuance costs					4,000,000
Debt instrument, unamortized discount (less than excluding $2 million)					1,000,000
Senior Notes \| 3.50% Senior Notes
Debt Instrument [Line Items]
Debt issuance, principal value				$ 350,000,000	$ 350,000,000
Interest rate on senior notes				3.50%	3.50%	3.50%
Net proceeds from debt				$ 346,000,000
Long-term debt					$ 349,000,000	$ 349,000,000
Debt issuance costs					1,000,000
Debt instrument, unamortized discount (less than excluding $2 million)					$ 1,000,000
Senior Notes \| 1.800% Senior Notes
Debt Instrument [Line Items]
Debt issuance, principal value		$ 500,000,000
Interest rate on senior notes		1.80%			1.80%
Net proceeds from debt		$ 494,000,000
Long-term debt					$ 494,000,000	0
Debt issuance costs					4,000,000
Debt instrument, unamortized discount (less than excluding $2 million)					$ 2,000,000
Senior Notes \| 2.100% Senior Notes
Debt Instrument [Line Items]
Debt issuance, principal value	$ 500,000,000	$ 500,000,000
Interest rate on senior notes	2.10%				2.10%
Net proceeds from debt	$ 496,000,000
Long-term debt					$ 496,000,000	$ 0
Debt issuance costs					4,000,000
Debt instrument, unamortized discount (less than excluding $2 million)					$ 1,000,000

Derivative Financial Instrume_3

Derivative Financial Instruments - Fair Value Hedges (Details) - Interest rate swaps - Other assets - Derivatives designated as hedging instruments $ in Millions	Jun. 30, 2021USD ($)
Derivative [Line Items]
Amortized Cost Basis of the Hedged Assets	$ 21,817
Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Assets	4
Amortized cost of hedged items where the hedged item is the last layer expected to be remaining at the end of the hedging relationship	17,500
Amount of hedged items where the hedged item is the last layer expected to be remaining at the end of the hedging relationship	8,800
Cumulative adjustments of hedged items where the hedged item is the last layer expected to be remaining at the end of the hedging relationship	$ 6

Derivative Financial Instrume_4

Derivative Financial Instruments - Cash Flow Hedges (Details) $ in Millions	6 Months Ended
	Jun. 30, 2021USD ($)
Derivative [Line Items]
Unrealized gain on terminated cash flow hedge remaining in AOCI, before tax	$ 148
Unrealized gain on terminated cash flow hedge remaining in AOCI, net of tax	$ 107
Term unrealized gains reclassified into earnings	4 years
Derivatives designated as hedging instruments \| Interest rate swaps
Derivative [Line Items]
Derivative notional amount	$ 5,000
Derivatives net asset fair value	$ 228

Derivative Financial Instrume_5

Derivative Financial Instruments - Total Notional or Contractual Amounts, Fair Value, Collateral and Net Exposure of Derivative Financial Instruments (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Derivative [Line Items]
Derivative Assets	$ 258	$ 285
Derivative Liabilities	218	237
Derivative Assets, Total	524	488
Derivative Liabilities, Total	218	237
Reduction in derivative liabilities due to rules of clearing houses	6	45
Interest rate swaps
Derivative [Line Items]
Derivative Assets	16	0
Derivative Liabilities	2	0
Foreign exchange forwards
Derivative [Line Items]
Derivative Assets	175	215
Derivative Liabilities	155	208
Client foreign currency options
Derivative [Line Items]
Derivative Assets	2	2
Derivative Liabilities	2	2
Client interest rate derivatives
Derivative [Line Items]
Derivative Assets	65	68
Derivative Liabilities	59	27
Derivatives designated as hedging instruments \| Interest rate swaps \| Other assets
Derivative [Line Items]
Derivative Asset, Notional or Contractual Amount	9,775	0
Derivative Assets	16	0
Derivatives designated as hedging instruments \| Interest rate swaps \| Other liabilities
Derivative [Line Items]
Derivative Liabilities, Notional or Contractual Amount	3,025	0
Derivative Liabilities	2	0
Derivatives not designated as hedging instruments
Derivative [Line Items]
Derivative Assets	508	488
Derivative Liabilities	216	237
Derivatives not designated as hedging instruments \| Foreign exchange forwards \| Other assets
Derivative [Line Items]
Derivative Asset, Notional or Contractual Amount	616	68
Derivative Liabilities	10	0
Derivatives not designated as hedging instruments \| Foreign exchange forwards \| Other liabilities
Derivative [Line Items]
Derivative Liabilities, Notional or Contractual Amount	184	567
Derivative Liabilities	2	20
Derivatives not designated as hedging instruments \| Equity warrant assets \| Other assets
Derivative [Line Items]
Derivative Asset, Notional or Contractual Amount	301	253
Derivative Assets	266	203
Derivatives not designated as hedging instruments \| Client foreign exchange forwards \| Other assets
Derivative [Line Items]
Derivative Asset, Notional or Contractual Amount	11,234	8,026
Derivative Assets	165	215
Derivatives not designated as hedging instruments \| Client foreign exchange forwards \| Other liabilities
Derivative [Line Items]
Derivative Liabilities, Notional or Contractual Amount	10,717	7,491
Derivative Liabilities	153	188
Derivatives not designated as hedging instruments \| Client foreign currency options \| Other assets
Derivative [Line Items]
Derivative Asset, Notional or Contractual Amount	233	98
Derivative Assets	2	2
Derivatives not designated as hedging instruments \| Client foreign currency options \| Other liabilities
Derivative [Line Items]
Derivative Liabilities, Notional or Contractual Amount	233	98
Derivative Liabilities	2	2
Derivatives not designated as hedging instruments \| Client interest rate derivatives \| Other assets
Derivative [Line Items]
Derivative Asset, Notional or Contractual Amount	1,306	1,082
Derivative Assets	65	68
Derivatives not designated as hedging instruments \| Client interest rate derivatives \| Other liabilities
Derivative [Line Items]
Derivative Liabilities, Notional or Contractual Amount	1,483	1,251
Derivative Liabilities	$ 59	$ 27

Derivative Financial Instrume_6

Derivative Financial Instruments - Summary of Derivative Activity and Related Impact on Consolidated Statements of Income (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Interest rate risks \| Derivatives designated as hedging instruments
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gains (losses) on derivatives	$ 6	$ 16	$ 22	$ 18
Interest rate risks \| Derivatives designated as hedging instruments \| Reclassification out of Accumulated Other Comprehensive Income \| Interest income - loans
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gains (losses) on derivatives	16	16	31	18
Interest rate risks \| Derivatives designated as hedging instruments \| Change In Fair Value Of Interest Rate Swaps Hedging Investment Securities \| Interest income - loans
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gains (losses) on derivatives	(14)	0	4	0
Interest rate risks \| Derivatives designated as hedging instruments \| Change In Fair Value Of Hedged Investment Securities \| Interest income - loans
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gains (losses) on derivatives	4	0	(13)	0
Currency exchange risk \| Derivatives not designated as hedging instruments
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gains (losses) on derivatives	1	2	0	2
Currency exchange risk \| Derivatives not designated as hedging instruments \| Revaluations of internal foreign currency instruments, net \| Other noninterest income
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gains (losses) on derivatives	7	11	(21)	3
Currency exchange risk \| Derivatives not designated as hedging instruments \| Foreign exchange forward contracts, net \| Other noninterest income
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gains (losses) on derivatives	(6)	(9)	21	(1)
Other derivative instruments \| Derivatives not designated as hedging instruments
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gains (losses) on derivatives	5	(2)	5	(2)
Other derivative instruments \| Derivatives not designated as hedging instruments \| Other noninterest income
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gains (losses) on derivatives	(2)	0	2	(5)
Other derivative instruments \| Derivatives not designated as hedging instruments \| Revaluations of internal foreign currency instruments, net \| Other noninterest income
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gains (losses) on derivatives	17	5	15	(3)
Other derivative instruments \| Derivatives not designated as hedging instruments \| Foreign exchange forward contracts, net \| Other noninterest income
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gains (losses) on derivatives	(12)	(7)	(10)	1
Equity warrant assets
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gains (losses) on derivatives			40	(21)
Equity warrant assets \| Derivatives not designated as hedging instruments \| Gains on equity warrant assets, net
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gains (losses) on derivatives	$ 122	$ 27	$ 344	$ 40

Derivative Financial Instrume_7

Derivative Financial Instruments - Balance Sheet Offsetting, Assets (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Derivative Assets
Gross Amounts of Recognized Assets	$ 258	$ 285
Gross Amounts offset in the Statement of Financial Position	0	0
Net Amounts of Assets Presented in the Statement of Financial Position	258	285
Financial Instruments (Collateral)	(113)	(145)
Cash Collateral Received	(34)	(21)
Net Amount	111	119
Reverse repurchase, securities borrowing, and similar arrangements
Gross Amounts of Recognized Assets	762	227
Gross Amounts offset in the Statement of Financial Position	0	0
Net Amounts of Assets Presented in the Statement of Financial Position	762	227
Financial Instruments (Collateral)	(762)	(227)
Cash Collateral Received	0	0
Net Amount	0	0
Total
Gross Amounts of Recognized Assets	1,020	512
Gross Amounts offset in the Statement of Financial Position	0	0
Net Amounts of Assets Presented in the Statement of Financial Position	1,020	512
Financial Instruments (Collateral)	(875)	(372)
Cash Collateral Received	(34)	(21)
Net Amount	111	119
Interest rate swaps
Derivative Assets
Gross Amounts of Recognized Assets	16	0
Gross Amounts offset in the Statement of Financial Position	0	0
Net Amounts of Assets Presented in the Statement of Financial Position	16	0
Derivative Asset, Not Offset, Policy Election Deduction	(2)	0
Cash Collateral Received	0	0
Net Amount	14	0
Foreign exchange forwards
Derivative Assets
Gross Amounts of Recognized Assets	175	215
Gross Amounts offset in the Statement of Financial Position	0	0
Net Amounts of Assets Presented in the Statement of Financial Position	175	215
Derivative Asset, Not Offset, Policy Election Deduction	(48)	(76)
Cash Collateral Received	(31)	(21)
Net Amount	96	118
Client foreign currency options
Derivative Assets
Gross Amounts of Recognized Assets	2	2
Gross Amounts offset in the Statement of Financial Position	0	0
Net Amounts of Assets Presented in the Statement of Financial Position	2	2
Derivative Asset, Not Offset, Policy Election Deduction	(1)	(1)
Cash Collateral Received	0	0
Net Amount	1	1
Client interest rate derivatives
Derivative Assets
Gross Amounts of Recognized Assets	65	68
Gross Amounts offset in the Statement of Financial Position	0	0
Net Amounts of Assets Presented in the Statement of Financial Position	65	68
Derivative Asset, Not Offset, Policy Election Deduction	(62)	(68)
Cash Collateral Received	(3)	0
Net Amount	$ 0	$ 0

Derivative Financial Instrume_8

Derivative Financial Instruments - Balance Sheet Offsetting, Liabilities (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Derivative Liabilities
Gross Amounts of Recognized Liabilities	$ 218	$ 237
Gross Amounts offset in the Statement of Financial Position	0	0
Net Amounts of Liabilities Presented in the Statement of Financial Position	218	237
Financial Instruments (Collateral)	(93)	(85)
Cash Collateral Pledged	(64)	(71)
Net Amount	61	81
Repurchase, securities lending, and similar arrangements
Securities Sold under Agreements to Repurchase, Gross	0	0
Securities Sold under Agreements to Repurchase, Asset	0	0
Securities Sold under Agreements to Repurchase	0	0
Financial Instruments (Collateral)	0	0
Cash Collateral Pledged	0	0
Net Amount	0	0
Total
Gross Amounts of Recognized Liabilities	218	237
Gross Amounts offset in the Statement of Financial Position	0	0
Net Amounts of Liabilities Presented in the Statement of Financial Position	218	237
Financial Instruments (Collateral)	(93)	(85)
Cash Collateral Pledged	(64)	(71)
Net Amount	61	81
Interest rate swaps
Derivative Liabilities
Gross Amounts of Recognized Liabilities	2	0
Gross Amounts offset in the Statement of Financial Position	0	0
Net Amounts of Liabilities Presented in the Statement of Financial Position	2	0
Derivative Liability, Not Offset, Policy Election Deduction	(2)	0
Cash Collateral Pledged	0	0
Net Amount	0	0
Foreign exchange forwards
Derivative Liabilities
Gross Amounts of Recognized Liabilities	155	208
Gross Amounts offset in the Statement of Financial Position	0	0
Net Amounts of Liabilities Presented in the Statement of Financial Position	155	208
Derivative Liability, Not Offset, Policy Election Deduction	(54)	(84)
Cash Collateral Pledged	(42)	(45)
Net Amount	59	79
Client foreign currency options
Derivative Liabilities
Gross Amounts of Recognized Liabilities	2	2
Gross Amounts offset in the Statement of Financial Position	0	0
Net Amounts of Liabilities Presented in the Statement of Financial Position	2	2
Derivative Liability, Not Offset, Policy Election Deduction	0	(1)
Cash Collateral Pledged	(1)	0
Net Amount	1	1
Client interest rate derivatives
Derivative Liabilities
Gross Amounts of Recognized Liabilities	59	27
Gross Amounts offset in the Statement of Financial Position	0	0
Net Amounts of Liabilities Presented in the Statement of Financial Position	59	27
Derivative Liability, Not Offset, Policy Election Deduction	(37)	0
Cash Collateral Pledged	(21)	(26)
Net Amount	$ 1	$ 1

Noninterest Income - Summary of

Noninterest Income - Summary of Noninterest Income (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Other Income and Expenses [Abstract]
Gains on investment securities, net	$ 305	$ 35	$ 472	$ 81
Gains on equity warrant assets, net	122	27	344	40
Client investment fees	15	32	35	75
Foreign exchange fees	67	36	124	84
Credit card fees	31	21	59	50
Deposit service charges	28	21	53	45
Lending related fees	18	11	34	24
Letters of credit and standby letters of credit fees	13	11	26	23
Investment banking revenue	103	142	245	188
Commissions	17	17	41	33
Other	42	16	72	27
Total noninterest income	$ 761	$ 369	$ 1,505	$ 670

Noninterest Income - Gains and

Noninterest Income - Gains and Losses on Investments (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Other Income and Expenses [Abstract]
Total net gains on non-marketable and other equity securities	$ 305	$ 35	$ 472	$ 20
Gains on sales of AFS securities, net	0	0	0	61
Gains on investment securities, net	$ 305	$ 35	$ 472	$ 81

Noninterest Income - Gains an_2

Noninterest Income - Gains and Losses on Derivatives (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Other Income and Expenses [Abstract]
Gains on exercises, net	$ 78	$ 9	$ 251	$ 33
Terminations	(1)	0	(1)	(1)
Changes in fair value, net	45	18	94	8
Gains on equity warrant assets, net	$ 122	$ 27	$ 344	$ 40

Noninterest Income - Client Inv

Noninterest Income - Client Investment Fees (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 306	$ 285	$ 633	$ 506
Sweep money market fees
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	7	19	18	42
Asset management fees
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	8	12	16	21
Repurchase agreement fees
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	1	1	12
Client investment fees
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 15	$ 32	$ 35	$ 75

Noninterest Income - Foreign Ex

Noninterest Income - Foreign Exchange Fees (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 306	$ 285	$ 633	$ 506
Revenue not from contract with customer	455	84	872	164
Foreign exchange fees	67	36	124	84
Spot contract commissions
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	60	33	115	74
Forward contract commissions
Disaggregation of Revenue [Line Items]
Revenue not from contract with customer	6	3	8	10
Option premium fees
Disaggregation of Revenue [Line Items]
Revenue not from contract with customer	$ 1	$ 0	$ 1	$ 0

Noninterest Income - Credit Car

Noninterest Income - Credit Card Fees (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disaggregation of Revenue [Line Items]
Card interchange fees, net	$ 26	$ 15	$ 49	$ 37
Revenue from contracts with customers	306	285	633	506
Revenue not from contract with customer	455	84	872	164
Total credit card fees	31	21	59	50
Merchant service fees
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	4	5	8	10
Card service fees
Disaggregation of Revenue [Line Items]
Revenue not from contract with customer	$ 1	$ 1	$ 2	$ 3

Noninterest Income - Lending Re

Noninterest Income - Lending Related Fees (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Lending related fees	$ 18	$ 11	$ 34	$ 24
Unused commitment fees
Accounts, Notes, Loans and Financing Receivable [Line Items]
Lending related fees	15	8	28	17
Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Lending related fees	$ 3	$ 3	$ 6	$ 7

Noninterest Income - Investment

Noninterest Income - Investment Banking Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Investment banking revenue:
Underwriting fees	$ 84	$ 131	$ 209	$ 162
Advisory fees	9	9	13	24
Private placements and other	10	2	23	2
Total investment banking revenue	$ 103	$ 142	$ 245	$ 188

Noninterest Income - Summary _2

Noninterest Income - Summary of Other Noninterest Income (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Trading Activity, Gains and Losses, Net [Line Items]
Revenue from contracts with customers	$ 306	$ 285	$ 633	$ 506
Net gains on revaluation of foreign currency instruments, net of foreign exchange forward contracts	6	0	5	0
Other service revenue	15	8	31	11
Other	42	16	72	27
Fund management fees
Trading Activity, Gains and Losses, Net [Line Items]
Revenue from contracts with customers	$ 21	$ 8	$ 36	$ 16

Noninterest Income - Disaggrega

Noninterest Income - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 306	$ 285	$ 633	$ 506
Revenues outside the scope of ASC 606	455	84	872	164
Noninterest income	761	369	1,505	670
Other Items
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	2	0	2	1
Revenues outside the scope of ASC 606	260	50	605	116
Noninterest income	262	50	607	117
Global Commercial Bank
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	154	117	299	267
Revenues outside the scope of ASC 606	20	16	34	33
Noninterest income	174	133	333	300
SVB Private Bank
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	1	1	2	1
Revenues outside the scope of ASC 606	0	0	0	0
Noninterest income	1	1	2	1
SVB Capital
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	28	7	41	14
Revenues outside the scope of ASC 606	147	14	203	12
Noninterest income	175	21	244	26
SVB Leerink
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	121	160	289	223
Revenues outside the scope of ASC 606	28	4	30	3
Noninterest income	149	164	319	226
Investment banking revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	15	32	35	75
Investment banking revenue \| Other Items
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Investment banking revenue \| Global Commercial Bank
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	14	31	33	74
Investment banking revenue \| SVB Private Bank
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	1	1	2	1
Investment banking revenue \| SVB Capital
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Investment banking revenue \| SVB Leerink
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Spot contract commissions
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	60	33	115	74
Spot contract commissions \| Other Items
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Spot contract commissions \| Global Commercial Bank
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	60	33	115	74
Spot contract commissions \| SVB Private Bank
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Spot contract commissions \| SVB Capital
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Spot contract commissions \| SVB Leerink
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Card interchange fees, gross
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	49	26	90	63
Card interchange fees, gross \| Other Items
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	1	0	1	1
Card interchange fees, gross \| Global Commercial Bank
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	48	26	89	62
Card interchange fees, gross \| SVB Private Bank
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Card interchange fees, gross \| SVB Capital
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Card interchange fees, gross \| SVB Leerink
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Merchant service fees
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	4	5	8	10
Merchant service fees \| Other Items
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Merchant service fees \| Global Commercial Bank
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	4	5	8	10
Merchant service fees \| SVB Private Bank
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Merchant service fees \| SVB Capital
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Merchant service fees \| SVB Leerink
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Deposit service charges
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	28	21	53	45
Deposit service charges \| Other Items
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	1	0	1	0
Deposit service charges \| Global Commercial Bank
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	27	21	52	45
Deposit service charges \| SVB Private Bank
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Deposit service charges \| SVB Capital
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Deposit service charges \| SVB Leerink
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Investment banking revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	103	142	245	188
Investment banking revenue \| Other Items
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Investment banking revenue \| Global Commercial Bank
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Investment banking revenue \| SVB Private Bank
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Investment banking revenue \| SVB Capital
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Investment banking revenue \| SVB Leerink
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	103	142	245	188
Commissions
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	17	17	41	33
Commissions \| Other Items
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Commissions \| Global Commercial Bank
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Commissions \| SVB Private Bank
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Commissions \| SVB Capital
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Commissions \| SVB Leerink
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	17	17	41	33
Fund management fees
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	21	8	36	16
Fund management fees \| Other Items
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Fund management fees \| Global Commercial Bank
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Fund management fees \| SVB Private Bank
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Fund management fees \| SVB Capital
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	20	7	33	14
Fund management fees \| SVB Leerink
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	1	1	3	2
Performance fees
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	8		8
Performance fees \| Other Items
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0		0
Performance fees \| Global Commercial Bank
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0		0
Performance fees \| SVB Private Bank
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0		0
Performance fees \| SVB Capital
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	8		8
Performance fees \| SVB Leerink
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0		0
Correspondent bank rebates
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	1	1	2	2
Correspondent bank rebates \| Other Items
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Correspondent bank rebates \| Global Commercial Bank
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	1	1	2	2
Correspondent bank rebates \| SVB Private Bank
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Correspondent bank rebates \| SVB Capital
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Correspondent bank rebates \| SVB Leerink
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 0	$ 0	$ 0	$ 0

Other Noninterest Expense - Sum

Other Noninterest Expense - Summary of Other Noninterest Expense (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Other Income and Expenses [Abstract]
Lending and other client related processing costs	$ 8	$ 7	$ 15	$ 16
Correspondent bank fees	5	4	9	8
Investment banking activities	3	8	9	11
Trade order execution costs	3	2	6	5
Data processing services	5	3	10	7
Telephone	2	2	4	4
Dues and publications	1	1	3	2
Postage and supplies	1	1	1	1
Other	17	11	33	26
Total other noninterest expense	$ 45	$ 39	$ 90	$ 80

Segment Reporting - Additional

Segment Reporting - Additional Information (Details)	3 Months Ended
Segment Reporting - Additional Information (Details)	Jun. 30, 2021Segment
Segment Reporting [Abstract]
Number of reportable segments	4

Segment Reporting - Segment Inf

Segment Reporting - Segment Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Segment Reporting Information [Line Items]
Net interest income	$ 728	$ 513	$ 1,388	$ 1,037
Provision for credit losses	(35)	(66)	(54)	(310)
Noninterest income	761	369	1,505	670
Noninterest expense	(653)	(480)	(1,289)	(879)
Income before income tax expense	801	336	1,550	518
Total average loans, amortized cost	49,812	36,512	48,056	35,086
Total average assets	150,717	78,433	137,837	75,420
Total average deposits	133,760	67,917	122,248	64,863
Global Commercial Bank
Segment Reporting Information [Line Items]
Noninterest income	174	133	333	300
SVB Private Bank
Segment Reporting Information [Line Items]
Noninterest income	1	1	2	1
SVB Capital
Segment Reporting Information [Line Items]
Noninterest income	175	21	244	26
SVB Leerink
Segment Reporting Information [Line Items]
Noninterest income	149	164	319	226
Operating segments \| Global Commercial Bank
Segment Reporting Information [Line Items]
Net interest income	715	485	1,334	949
Provision for credit losses	(11)	(44)	(56)	(238)
Noninterest income	174	133	333	300
Noninterest expense	(307)	(241)	(585)	(466)
Income before income tax expense	571	333	1,026	545
Total average loans, amortized cost	42,727	30,472	41,016	29,805
Total average assets	131,885	67,936	120,470	64,871
Total average deposits	128,918	65,091	117,655	62,153
Operating segments \| SVB Private Bank
Segment Reporting Information [Line Items]
Net interest income	29	19	56	34
Provision for credit losses	(5)	(4)	4	(59)
Noninterest income	1	1	2	1
Noninterest expense	(15)	(10)	(28)	(20)
Income before income tax expense	10	6	34	(44)
Total average loans, amortized cost	5,154	4,036	5,066	3,946
Total average assets	5,199	4,072	5,114	3,982
Total average deposits	3,977	2,120	3,636	2,021
Operating segments \| SVB Capital
Segment Reporting Information [Line Items]
Net interest income	0	0	0	0
Provision for credit losses	0	0	0	0
Noninterest income	175	21	244	26
Noninterest expense	(18)	(8)	(34)	(17)
Income before income tax expense	157	13	210	9
Total average loans, amortized cost	0	0	0	0
Total average assets	613	430	595	439
Total average deposits	0	0	0	0
Operating segments \| SVB Leerink
Segment Reporting Information [Line Items]
Net interest income	0	0	0	0
Provision for credit losses	0	0	0	0
Noninterest income	149	164	319	226
Noninterest expense	(98)	(109)	(235)	(171)
Income before income tax expense	51	55	84	55
Total average loans, amortized cost	0	0	0	0
Total average assets	729	455	748	469
Total average deposits	0	0	0	0
Other Items
Segment Reporting Information [Line Items]
Net interest income	(16)	9	(2)	54
Provision for credit losses	(19)	(18)	(2)	(13)
Noninterest income	262	50	607	117
Noninterest expense	(215)	(112)	(407)	(205)
Income before income tax expense	12	(71)	196	(47)
Total average loans, amortized cost	1,931	2,004	1,974	1,335
Total average assets	12,291	5,540	10,910	5,659
Total average deposits	$ 865	$ 706	$ 957	$ 689

Segment Reporting - Segment I_2

Segment Reporting - Segment Information (Additional Information) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Segment Reporting Information [Line Items]
Goodwill	$ 143		$ 143		$ 143
Operating segments \| Global Commercial Bank
Segment Reporting Information [Line Items]
Depreciation and amortization	8	$ 6	14	$ 11
Operating segments \| SVB Leerink
Segment Reporting Information [Line Items]
Goodwill	$ 138	$ 138	$ 138	$ 138

Off-Balance Sheet Arrangement_3

Off-Balance Sheet Arrangements, Guarantees and Other Commitments - Summary Information Related to Commitments to Extend Credit (Excluding Letters of Credit) (Details) - USD ($) $ in Millions	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019
Disclosure Off Balance Sheet Arrangements Guarantees And Other Commitments Additional Information [Abstract]
Loan commitments available for funding	$ 33,174		$ 28,975
Commercial and standby letters of credit	3,211		3,007
Total unfunded credit commitments	36,385		31,982
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses: loans	396	$ 392	448	$ 590	$ 549	$ 305
Unfunded Credit Commitments
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses: loans	$ 120	$ 105	$ 121	$ 99	$ 85	$ 67

Off-Balance Sheet Arrangement_4

Off-Balance Sheet Arrangements, Guarantees and Other Commitments - Summary of Commercial and Standby Letters of Credit (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Guarantor Obligations [Line Items]
Expires in One Year or Less	$ 3,060
Expires After One Year	151
Total Amount Outstanding	3,211	$ 3,007
Maximum Amount of Future Payments	3,211
Financial standby letters of credit
Guarantor Obligations [Line Items]
Expires in One Year or Less	2,916
Expires After One Year	101
Total Amount Outstanding	3,017
Maximum Amount of Future Payments	3,017
Performance standby letters of credit
Guarantor Obligations [Line Items]
Expires in One Year or Less	121
Expires After One Year	5
Total Amount Outstanding	126
Maximum Amount of Future Payments	126
Commercial letters of credit
Guarantor Obligations [Line Items]
Expires in One Year or Less	23
Expires After One Year	45
Total Amount Outstanding	68
Maximum Amount of Future Payments	$ 68

Off-Balance Sheet Arrangement_5

Off-Balance Sheet Arrangements, Guarantees and Other Commitments - Summary of Commercial and Standby Letters of Credit (Additional Information) (Details) - Standby Letter of Credit - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Commitments and Contingencies Disclosure [Line Items]
Deferred fees	$ 18	$ 17
Collateral in the form of cash	$ 1,900

Off-Balance Sheet Arrangement_6

Off-Balance Sheet Arrangements, Guarantees and Other Commitments - Total Capital Commitments, Unfunded Capital Commitments, and Our Ownership in Each Fund (Details) $ in Millions	3 Months Ended
	Jun. 30, 2021USD ($)
Venture Capital and Private Equity Fund Investments [Line Items]
SVBFG Unfunded Commitments	$ 3
Capital Preferred Return Fund, LP
Venture Capital and Private Equity Fund Investments [Line Items]
SVBFG Unfunded Commitments	2
Growth Partners, LP
Venture Capital and Private Equity Fund Investments [Line Items]
SVBFG Unfunded Commitments	1
Parent Company
Venture Capital and Private Equity Fund Investments [Line Items]
SVBFG Capital Commitments	434
SVBFG Unfunded Commitments	25
Parent Company \| CP II, LP
Venture Capital and Private Equity Fund Investments [Line Items]
SVBFG Capital Commitments	1
SVBFG Unfunded Commitments	$ 0
SVBFG Ownership of each Fund	5.10%
Parent Company \| Strategic Investors Fund II, LP
Venture Capital and Private Equity Fund Investments [Line Items]
SVBFG Capital Commitments	$ 15
SVBFG Unfunded Commitments	$ 1
SVBFG Ownership of each Fund	8.60%
Parent Company \| Strategic Investors Fund III, LP
Venture Capital and Private Equity Fund Investments [Line Items]
SVBFG Capital Commitments	$ 15
SVBFG Unfunded Commitments	$ 1
SVBFG Ownership of each Fund	5.90%
Parent Company \| Strategic Investors Fund IV, LP
Venture Capital and Private Equity Fund Investments [Line Items]
SVBFG Capital Commitments	$ 12
SVBFG Unfunded Commitments	$ 2
SVBFG Ownership of each Fund	5.00%
Parent Company \| Strategic Investors Fund V funds
Venture Capital and Private Equity Fund Investments [Line Items]
SVBFG Capital Commitments	$ 1
SVBFG Unfunded Commitments	0
Parent Company \| Other venture capital and private equity fund investments
Venture Capital and Private Equity Fund Investments [Line Items]
SVBFG Capital Commitments	11
SVBFG Unfunded Commitments	3
Parent Company \| Debt funds (equity method accounting)
Venture Capital and Private Equity Fund Investments [Line Items]
SVBFG Capital Commitments	59
SVBFG Unfunded Commitments	0
Parent Company \| Other fund investments
Venture Capital and Private Equity Fund Investments [Line Items]
SVBFG Capital Commitments	267
SVBFG Unfunded Commitments	16
Parent Company \| Capital Preferred Return Fund, LP
Venture Capital and Private Equity Fund Investments [Line Items]
SVBFG Capital Commitments	13
SVBFG Unfunded Commitments	$ 0
SVBFG Ownership of each Fund	20.00%
Parent Company \| Growth Partners, LP
Venture Capital and Private Equity Fund Investments [Line Items]
SVBFG Capital Commitments	$ 25
SVBFG Unfunded Commitments	$ 1
SVBFG Ownership of each Fund	33.00%
Parent Company \| Strategic Investors Fund, LP
Venture Capital and Private Equity Fund Investments [Line Items]
SVBFG Capital Commitments	$ 15
SVBFG Unfunded Commitments	$ 1
SVBFG Ownership of each Fund	12.60%

Off-Balance Sheet Arrangement_7

Off-Balance Sheet Arrangements, Guarantees and Other Commitments - Total Capital Commitments, Unfunded Capital Commitments, and Our Ownership in Each Fund (Additional Information) (Details) - Investment	3 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Upper Limit
Venture Capital and Private Equity Fund Investments [Line Items]
Percentage of ownership	5.00%
Consolidated venture capital and private equity fund investments
Venture Capital and Private Equity Fund Investments [Line Items]
Commitments to invest, period from the inception of the fund	10 years
Call unrestricted, percentage of committed capital	100.00%
Consolidated venture capital and private equity fund investments \| Lower Limit
Venture Capital and Private Equity Fund Investments [Line Items]
Expected commitment period to invest in venture capital and private equity funds (in years)	5 years
Consolidated venture capital and private equity fund investments \| Upper Limit
Venture Capital and Private Equity Fund Investments [Line Items]
Expected commitment period to invest in venture capital and private equity funds (in years)	7 years
Non-marketable securities \| Consolidated venture capital and private equity fund investments \| Equity method accounting \| CP II, LP
Venture Capital and Private Equity Fund Investments [Line Items]
Percentage of ownership	5.10%	5.10%
Non-marketable securities \| Consolidated venture capital and private equity fund investments \| Equity method accounting \| Other fund investments
Venture Capital and Private Equity Fund Investments [Line Items]
Number of other funds with investment commitments	163
Non-marketable securities \| Consolidated venture capital and private equity fund investments \| Equity method accounting \| Other fund investments \| Upper Limit
Venture Capital and Private Equity Fund Investments [Line Items]
Percentage of ownership	5.00%
Non-marketable securities \| Consolidated venture capital and private equity fund investments \| Direct ownership interest \| Equity method accounting \| CP II, LP
Venture Capital and Private Equity Fund Investments [Line Items]
Percentage of ownership	1.30%
Non-marketable securities \| Consolidated venture capital and private equity fund investments \| Indirect ownership interest \| Equity method accounting \| CP II, LP
Venture Capital and Private Equity Fund Investments [Line Items]
Percentage of ownership	3.80%

Off-Balance Sheet Arrangement_8

Off-Balance Sheet Arrangements, Guarantees and Other Commitments - Remaining Unfunded Commitments to Venture Capital or Private Equity Funds by our Consolidated Managed Funds (Details) $ in Millions	Jun. 30, 2021USD ($)
Commitments and Contingencies Disclosure [Line Items]
Unfunded Commitments	$ 3
Capital Preferred Return Fund, LP
Commitments and Contingencies Disclosure [Line Items]
Unfunded Commitments	2
Growth Partners, LP
Commitments and Contingencies Disclosure [Line Items]
Unfunded Commitments	$ 1

Income Taxes (Details)

Income Taxes (Details) $ in Millions	Jun. 30, 2021USD ($)
Income Tax Disclosure [Abstract]
Unrecognized tax benefits	$ 22
Income tax reduction from recognized tax benefit	$ 18

Fair Value of Financial Instr_3

Fair Value of Financial Instruments - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2021USD ($)	Jun. 30, 2021USD ($)	Dec. 31, 2020USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	$ 23,876	$ 23,876	$ 30,913
Derivative Assets	258	258	285
Derivative Liabilities	218	218	237
Interest rate swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	16	16	0
Derivative Liabilities	2	2	0
Client interest rate derivatives
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	65	65	68
Derivative Liabilities	59	59	27
Derivatives not designated as hedging instruments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	508	508	488
Derivative Liabilities	216	216	237
Derivatives not designated as hedging instruments \| Equity warrant assets \| Other assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	266	266	203
Derivatives not designated as hedging instruments \| Client interest rate derivatives \| Other assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	65	65	68
Derivatives not designated as hedging instruments \| Client interest rate derivatives \| Other liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liabilities	59	59	27
U.S. treasury securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	6,235	6,235	4,470
U.S. agency debentures
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	81	81	237
Foreign government debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	15	15	24
Residential mortgage-backed securities \| Agency-issued mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	11,562	11,562	13,503
Residential mortgage-backed securities \| Agency-issued collateralized mortgage obligations—fixed rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	4,424	4,424	8,107
Agency-issued commercial mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	1,559	1,559	4,572
Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	23,876	23,876	30,913
Total assets	24,802	24,802	31,956
Total liabilities	218	218	237
Recurring \| Derivatives not designated as hedging instruments \| Foreign exchange contract \| Other assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	177	177	217
Recurring \| Derivatives not designated as hedging instruments \| Foreign exchange contract \| Other liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liabilities	157	157	210
Recurring \| Derivatives not designated as hedging instruments \| Equity warrant assets \| Other assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	266	266	203
Recurring \| Derivatives not designated as hedging instruments \| Interest rate swaps \| Other assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	16	16
Recurring \| Derivatives not designated as hedging instruments \| Interest rate swaps \| Other liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liabilities	2	2
Recurring \| Derivatives not designated as hedging instruments \| Client interest rate derivatives \| Other assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	65	65	68
Recurring \| Derivatives not designated as hedging instruments \| Client interest rate derivatives \| Other liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liabilities	59	59	27
Recurring \| Fair value accounting
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-marketable securities	402	402	555
Recurring \| Other securities \| Fair value accounting
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-marketable securities	107	107	281
Recurring \| U.S. treasury securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	6,235	6,235	4,470
Recurring \| U.S. agency debentures
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	81	81	237
Recurring \| Foreign government debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	15	15	24
Recurring \| Residential mortgage-backed securities \| Agency-issued mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	11,562	11,562	13,503
Recurring \| Residential mortgage-backed securities \| Agency-issued collateralized mortgage obligations—fixed rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	4,424	4,424	8,107
Recurring \| Agency-issued commercial mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	1,559	1,559	4,572
Recurring \| Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	6,250	6,250	4,494
Total assets	6,285	6,285	4,537
Total liabilities	0	0	0
Recurring \| Level 1 \| Derivatives not designated as hedging instruments \| Foreign exchange contract \| Other assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	0	0	0
Recurring \| Level 1 \| Derivatives not designated as hedging instruments \| Foreign exchange contract \| Other liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liabilities	0	0	0
Recurring \| Level 1 \| Derivatives not designated as hedging instruments \| Equity warrant assets \| Other assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	0	0	0
Recurring \| Level 1 \| Derivatives not designated as hedging instruments \| Interest rate swaps \| Other assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	0	0
Recurring \| Level 1 \| Derivatives not designated as hedging instruments \| Interest rate swaps \| Other liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liabilities	0	0
Recurring \| Level 1 \| Derivatives not designated as hedging instruments \| Client interest rate derivatives \| Other assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	0	0	0
Recurring \| Level 1 \| Derivatives not designated as hedging instruments \| Client interest rate derivatives \| Other liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liabilities	0	0	0
Recurring \| Level 1 \| Fair value accounting
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-marketable securities	35	35	43
Recurring \| Level 1 \| Other securities \| Fair value accounting
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-marketable securities	35	35	43
Recurring \| Level 1 \| U.S. treasury securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	6,235	6,235	4,470
Recurring \| Level 1 \| U.S. agency debentures
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	0	0	0
Recurring \| Level 1 \| Foreign government debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	15	15	24
Recurring \| Level 1 \| Residential mortgage-backed securities \| Agency-issued mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	0	0	0
Recurring \| Level 1 \| Residential mortgage-backed securities \| Agency-issued collateralized mortgage obligations—fixed rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	0	0	0
Recurring \| Level 1 \| Agency-issued commercial mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	0	0	0
Recurring \| Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	17,626	17,626	26,419
Total assets	17,965	17,965	26,953
Total liabilities	218	218	237
Recurring \| Level 2 \| Derivatives not designated as hedging instruments \| Foreign exchange contract \| Other assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	177	177	217
Recurring \| Level 2 \| Derivatives not designated as hedging instruments \| Foreign exchange contract \| Other liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liabilities	157	157	210
Recurring \| Level 2 \| Derivatives not designated as hedging instruments \| Equity warrant assets \| Other assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	9	9	11
Recurring \| Level 2 \| Derivatives not designated as hedging instruments \| Interest rate swaps \| Other assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	16	16
Recurring \| Level 2 \| Derivatives not designated as hedging instruments \| Interest rate swaps \| Other liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liabilities	2	2
Recurring \| Level 2 \| Derivatives not designated as hedging instruments \| Client interest rate derivatives \| Other assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	65	65	68
Recurring \| Level 2 \| Derivatives not designated as hedging instruments \| Client interest rate derivatives \| Other liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liabilities	59	59	27
Recurring \| Level 2 \| Fair value accounting
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-marketable securities	72	72	238
Recurring \| Level 2 \| Other securities \| Fair value accounting
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-marketable securities	72	72	238
Recurring \| Level 2 \| U.S. treasury securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	0	0	0
Recurring \| Level 2 \| U.S. agency debentures
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	81	81	237
Recurring \| Level 2 \| Foreign government debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	0	0	0
Recurring \| Level 2 \| Residential mortgage-backed securities \| Agency-issued mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	11,562	11,562	13,503
Recurring \| Level 2 \| Residential mortgage-backed securities \| Agency-issued collateralized mortgage obligations—fixed rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	4,424	4,424	8,107
Recurring \| Level 2 \| Agency-issued commercial mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	1,559	1,559	4,572
Recurring \| Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	0	0	0
Total assets	257	257	192
Total liabilities	0	0	0
Recurring \| Level 3 \| Derivatives not designated as hedging instruments \| Foreign exchange contract \| Other assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	0	0	0
Recurring \| Level 3 \| Derivatives not designated as hedging instruments \| Foreign exchange contract \| Other liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liabilities	0	0	0
Recurring \| Level 3 \| Derivatives not designated as hedging instruments \| Equity warrant assets \| Other assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	257	257	192
Recurring \| Level 3 \| Derivatives not designated as hedging instruments \| Interest rate swaps \| Other assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	0	0
Recurring \| Level 3 \| Derivatives not designated as hedging instruments \| Interest rate swaps \| Other liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liabilities	0	0
Recurring \| Level 3 \| Derivatives not designated as hedging instruments \| Client interest rate derivatives \| Other assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	0	0	0
Recurring \| Level 3 \| Derivatives not designated as hedging instruments \| Client interest rate derivatives \| Other liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liabilities	0	0	0
Recurring \| Level 3 \| Fair value accounting
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-marketable securities	0	0	0
Recurring \| Level 3 \| Other securities \| Fair value accounting
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-marketable securities	0	0	0
Recurring \| Level 3 \| U.S. treasury securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	0	0	0
Recurring \| Level 3 \| U.S. agency debentures
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	0	0	0
Recurring \| Level 3 \| Foreign government debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	0	0	0
Recurring \| Level 3 \| Residential mortgage-backed securities \| Agency-issued mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	0	0	0
Recurring \| Level 3 \| Residential mortgage-backed securities \| Agency-issued collateralized mortgage obligations—fixed rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	0	0	0
Recurring \| Level 3 \| Agency-issued commercial mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value	0	0	0
Recurring \| Measured at net asset value \| Consolidated venture capital and private equity fund investments \| Fair value accounting
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-marketable securities	$ 295	$ 295	$ 274
Lower Limit \| Other equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value inputs, sales restriction, period	3 years
Lower Limit \| Level 3 \| Equity warrant asset, public portfolio
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value inputs, sales restriction, period	3 months
Upper Limit \| Other equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value inputs, sales restriction, period		6 months
Upper Limit \| Level 3 \| Equity warrant asset, public portfolio
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value inputs, sales restriction, period	6 months
Sales restrictions discount \| Level 3 \| Equity warrant asset, public portfolio
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Measurement input	0.200	0.200
Sales restrictions discount \| Lower Limit \| Other equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Measurement input	0.10	0.10
Sales restrictions discount \| Lower Limit \| Level 3 \| Equity warrant asset, public portfolio
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Measurement input	0.10	0.10	0.100
Sales restrictions discount \| Upper Limit \| Other equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Measurement input	0.20	0.20
Sales restrictions discount \| Upper Limit \| Equity warrant asset, public portfolio
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Measurement input	0.20	0.20
Sales restrictions discount \| Upper Limit \| Level 3 \| Equity warrant asset, public portfolio
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Measurement input	0.20	0.20	0.200

Fair Value of Financial Instr_4

Fair Value of Financial Instruments - Additional Information about Level 3 Assets Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Transfers out of Level 3	$ 0	$ 0	$ (4)	$ 0
Recurring \| Equity warrant assets
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	233	150	192	161
Total Net Gains Included in Net Income	121	24	341	39
Sales/Exits	(104)	(15)	(285)	(46)
Issuances	7	6	13	11
Ending Balance	$ 257	$ 165	$ 257	$ 165

Fair Value of Financial Instr_5

Fair Value of Financial Instruments - Unrealized Gains Included in Earnings Attributable to Level 3 Assets Held (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Unrealized Gains (Losses) [Line Items]
Unrealized gains included in earnings attributable to Level 3 assets still held	$ 31	$ 11	$ 92	$ 7
Equity warrant assets \| Other assets
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Unrealized Gains (Losses) [Line Items]
Unrealized gains included in earnings attributable to Level 3 assets still held	$ 31	$ 11	$ 92	$ 7

Fair Value of Financial Instr_6

Fair Value of Financial Instruments - Quantitative Information About Significant Unobservable Inputs (Details) $ in Millions	Jun. 30, 2021USD ($)	Dec. 31, 2020USD ($)
Sales restrictions discount \| Equity warrant asset, public portfolio \| Upper Limit
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted Average	0.20
Level 3 \| Equity warrant asset, public portfolio
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value	$ 12	$ 1
Level 3 \| Equity warrant assets, private portfolio
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value	$ 245	$ 191
Level 3 \| Volatility \| Equity warrant asset, public portfolio \| Lower Limit
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted Average	0.482	0.460
Level 3 \| Volatility \| Equity warrant asset, public portfolio \| Upper Limit
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted Average	0.585	0.568
Level 3 \| Volatility \| Equity warrant asset, public portfolio \| Weighted Average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted Average	0.490	0.491
Level 3 \| Volatility \| Equity warrant assets, private portfolio \| Lower Limit
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted Average	0.254	0.244
Level 3 \| Volatility \| Equity warrant assets, private portfolio \| Upper Limit
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted Average	0.585	0.568
Level 3 \| Volatility \| Equity warrant assets, private portfolio \| Weighted Average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted Average	0.463	0.432
Level 3 \| Risk-Free interest rate \| Equity warrant asset, public portfolio \| Lower Limit
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted Average	0.012	0.003
Level 3 \| Risk-Free interest rate \| Equity warrant asset, public portfolio \| Upper Limit
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted Average	0.015	0.009
Level 3 \| Risk-Free interest rate \| Equity warrant asset, public portfolio \| Weighted Average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted Average	0.012	0.006
Level 3 \| Risk-Free interest rate \| Equity warrant assets, private portfolio \| Lower Limit
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted Average	0.0002	0.0001
Level 3 \| Risk-Free interest rate \| Equity warrant assets, private portfolio \| Upper Limit
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted Average	0.0105	0.0052
Level 3 \| Risk-Free interest rate \| Equity warrant assets, private portfolio \| Weighted Average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted Average	0.004	0.001
Level 3 \| Sales restrictions discount \| Equity warrant asset, public portfolio
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted Average	0.200
Level 3 \| Sales restrictions discount \| Equity warrant asset, public portfolio \| Lower Limit
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted Average	0.10	0.100
Level 3 \| Sales restrictions discount \| Equity warrant asset, public portfolio \| Upper Limit
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted Average	0.20	0.200
Level 3 \| Sales restrictions discount \| Equity warrant asset, public portfolio \| Weighted Average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted Average	0.200	0.102
Level 3 \| Marketability discount \| Equity warrant assets, private portfolio
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted Average	0.220	0.206
Level 3 \| Marketability discount \| Equity warrant assets, private portfolio \| Weighted Average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted Average	0.220	0.206
Level 3 \| Remaining life assumption \| Equity warrant assets, private portfolio
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted Average	0.400	0.400
Level 3 \| Remaining life assumption \| Equity warrant assets, private portfolio \| Weighted Average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted Average	0.400	0.400

Fair Value of Financial Instr_7

Fair Value of Financial Instruments - Quantitative Information About Significant Unobservable Inputs (Additional Information) (Details)	3 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Equity warrant assets, private portfolio
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted average remaining life	6 years 8 months 12 days
Weighted average remaining life	2 years 8 months 12 days
Sales restrictions discount \| Upper Limit \| Equity warrant asset, public portfolio
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Measurement input	0.20
Level 3 \| Lower Limit \| Equity warrant asset, public portfolio
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value inputs, sales restriction, period	3 months
Level 3 \| Upper Limit \| Equity warrant asset, public portfolio
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value inputs, sales restriction, period	6 months
Level 3 \| Sales restrictions discount \| Equity warrant asset, public portfolio
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Measurement input	0.200
Level 3 \| Sales restrictions discount \| Lower Limit \| Equity warrant asset, public portfolio
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Measurement input	0.10	0.100
Level 3 \| Sales restrictions discount \| Upper Limit \| Equity warrant asset, public portfolio
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Measurement input	0.20	0.200

Fair Value of Financial Instr_8

Fair Value of Financial Instruments - Summary of Estimated Fair Values of Financial Instruments not Carried at Fair Value (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
HTM securities	$ 60,107,000	$ 17,217,000
Net loans	50,358,000	44,733,000
Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	23,959,000	17,675,000
HTM securities	59,992,000	16,592,000
Non-marketable securities not measured at net asset value	262,000	241,000
Non-marketable securities measured at net asset value	583,000	390,000
FHLB and Federal Reserve Bank stock	83,000	61,000
Non-maturity deposits	145,193,000	101,294,000
Time deposits	645,000	688,000
Commitments to extend credit	0	0
Carrying Amount \| Short-term borrowings
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term borrowings	34,000	21,000
Carrying Amount \| 3.50% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	349,000	349,000
Carrying Amount \| 3.125% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	495,000	495,000
Carrying Amount \| 1.800% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	494,000
Carrying Amount \| 2.100% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	496,000
Estimate of Fair Value Measurement
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	23,959,000	17,675,000
HTM securities	60,107,000	17,217,000
Non-marketable securities not measured at net asset value	262,000	241,000
Non-marketable securities measured at net asset value	583,000	390,000
FHLB and Federal Reserve Bank stock	83,000	61,000
Non-maturity deposits	145,193,000	101,294,000
Time deposits	645,000	502,000
Commitments to extend credit	41,000	37,000
Estimate of Fair Value Measurement \| Short-term borrowings
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term borrowings	34,000	21,000
Estimate of Fair Value Measurement \| 3.50% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	379,000	383,000
Estimate of Fair Value Measurement \| 3.125% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	534,000	564,000
Estimate of Fair Value Measurement \| 1.800% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	479,000
Estimate of Fair Value Measurement \| 2.100% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	507,000
Estimate of Fair Value Measurement \| Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	23,959,000	17,675,000
HTM securities	0	0
Non-marketable securities not measured at net asset value	0	0
Non-marketable securities measured at net asset value	0	0
FHLB and Federal Reserve Bank stock	0	0
Non-maturity deposits	145,193,000	101,294,000
Time deposits	0	0
Commitments to extend credit	0	0
Estimate of Fair Value Measurement \| Level 1 \| Short-term borrowings
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term borrowings	0	0
Estimate of Fair Value Measurement \| Level 1 \| 3.50% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	0	0
Estimate of Fair Value Measurement \| Level 1 \| 3.125% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	0	0
Estimate of Fair Value Measurement \| Level 1 \| 1.800% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	0
Estimate of Fair Value Measurement \| Level 1 \| 2.100% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	0
Estimate of Fair Value Measurement \| Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	0	0
HTM securities	60,107,000	17,217,000
Non-marketable securities not measured at net asset value	0	0
Non-marketable securities measured at net asset value	0	0
FHLB and Federal Reserve Bank stock	0	0
Non-maturity deposits	0	0
Time deposits	645,000	502,000
Commitments to extend credit	0	0
Estimate of Fair Value Measurement \| Level 2 \| Short-term borrowings
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term borrowings	34,000	21,000
Estimate of Fair Value Measurement \| Level 2 \| 3.50% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	379,000	383,000
Estimate of Fair Value Measurement \| Level 2 \| 3.125% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	534,000	564,000
Estimate of Fair Value Measurement \| Level 2 \| 1.800% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	479,000
Estimate of Fair Value Measurement \| Level 2 \| 2.100% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	507,000
Estimate of Fair Value Measurement \| Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	0	0
HTM securities	0	0
Non-marketable securities not measured at net asset value	262,000	241,000
Non-marketable securities measured at net asset value	0	0
FHLB and Federal Reserve Bank stock	83,000	61,000
Non-maturity deposits	0	0
Time deposits	0	0
Commitments to extend credit	41,000	37,000
Estimate of Fair Value Measurement \| Level 3 \| Short-term borrowings
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term borrowings	0	0
Estimate of Fair Value Measurement \| Level 3 \| 3.50% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	0	0
Estimate of Fair Value Measurement \| Level 3 \| 3.125% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	0	0
Estimate of Fair Value Measurement \| Level 3 \| 1.800% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	0
Estimate of Fair Value Measurement \| Level 3 \| 2.100% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	0
Commercial loans \| Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Net loans	45,108,000	39,886,000
Commercial loans \| Estimate of Fair Value Measurement
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Net loans	46,353,000	40,412,000
Commercial loans \| Estimate of Fair Value Measurement \| Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Net loans	0	0
Commercial loans \| Estimate of Fair Value Measurement \| Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Net loans	0	0
Commercial loans \| Estimate of Fair Value Measurement \| Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Net loans	46,353,000	40,412,000
Consumer loans \| Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Net loans	5,250,000	4,847,000
Consumer loans \| Estimate of Fair Value Measurement
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Net loans	5,395,000	4,911,000
Consumer loans \| Estimate of Fair Value Measurement \| Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Net loans	0	0
Consumer loans \| Estimate of Fair Value Measurement \| Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Net loans	0	0
Consumer loans \| Estimate of Fair Value Measurement \| Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Net loans	$ 5,395,000	$ 4,911,000

Fair Value of Financial Instr_9

Fair Value of Financial Instruments - Summary of Estimated Fair Values of Investments and Remaining Unfunded Commitments for Each Major Category of Investments (Details) $ in Millions	Jun. 30, 2021USD ($)
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Carrying Amount	$ 878
Fair Value	878
Unfunded Commitments	28
Non-marketable securities \| Consolidated venture capital and private equity fund investments \| Fair value accounting
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Carrying Amount	295
Fair Value	295
Unfunded Commitments	19
Non-marketable securities \| Consolidated venture capital and private equity fund investments \| Equity method accounting
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Carrying Amount	544
Fair Value	544
Unfunded Commitments	8
Non-marketable securities \| Debt funds \| Equity method accounting
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Carrying Amount	7
Fair Value	7
Unfunded Commitments	0
Non-marketable securities \| Other investments \| Equity method accounting
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Carrying Amount	32
Fair Value	32
Unfunded Commitments	$ 1

Fair Value of Financial Inst_10

Fair Value of Financial Instruments - Summary of Estimated Fair Values of Investments and Remaining Unfunded Commitments for Each Major Category of Investments (Textual) (Details) $ in Millions	3 Months Ended
	Jun. 30, 2021USD ($)
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair value	$ 878
Unfunded commitments	28
Non-marketable securities \| Venture capital and private equity fund investments \| Fair value accounting
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair value	295
Unfunded commitments	$ 19
Non-marketable securities \| Venture capital and private equity fund investments \| Fair value accounting \| Lower Limit
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Period distributions from fund investments to be received	10 years
Non-marketable securities \| Venture capital and private equity fund investments \| Fair value accounting \| Upper Limit
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Period distributions from fund investments to be received	13 years
Non-marketable securities \| Venture capital and private equity fund investments \| Equity method accounting
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair value	$ 544
Unfunded commitments	8
Non-marketable securities \| Venture capital and private equity fund investments \| Noncontrolling Interests \| Fair value accounting
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair value	79
Unfunded commitments	2
Non-marketable securities \| Other investments \| Equity method accounting
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair value	32
Unfunded commitments	$ 1
Non-marketable securities \| Other investments \| Equity method accounting \| Lower Limit
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Period distributions from fund investments to be received	5 years
Non-marketable securities \| Other investments \| Equity method accounting \| Upper Limit
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Period distributions from fund investments to be received	8 years

Subsequent Events (Details)

Subsequent Events (Details) - Subsequent Event - Boston Private $ / shares in Units, $ in Billions	Jul. 01, 2021USD ($)$ / sharesshares
Subsequent Event [Line Items]
Consideration transferred in acquisition \| $	$ 1.2
Number of shares of SIVB common stock that each share of Boston Private common stock was converted	0.228
Cash paid for each share of Boston Private common stock \| $ / shares	$ 2.10
Shares of common stock issued for acquisition	1,900,000
Additional number of SIVB shares registered issuable upon the exercise, vesting or settlement of converted legacy Boston Private equity awards	99,000