The Mosaic Company (MOS) 10-Q12 Nov 242024 Q3 Quarterly reportFinancial data

Company Profile

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
Document and Entity Information - shares	Sep. 30, 2024	Nov. 08, 2024
Cover [Abstract]
Document type	10-Q
Document quarterly report	true
Document period end date	Sep. 30, 2024
Document transition report	false
Entity file number	001-32327
Entity registrant name	MOSAIC CO
State of incorporation	DE
Employer identification number	20-1026454
Address line one	101 East Kennedy Blvd
Address line two	Suite 2500
City	Tampa
State	FL
Zip code	33602
Area code	800
Phone number	918-8270
Title of each class	Common Stock, par value $0.01 per share
Trading symbol	MOS
Name of each exchange on which registered	NYSE
Entity current reporting status	Yes
Entity interactive data current	Yes
Entity filer category	Large Accelerated Filer
Smaller reporting company	false
Emerging growth company	false
Entity shell company	false
Entity common stock shares outstanding		317,645,280
Entity central index key	0001285785
Amendment flag	false
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q3
Current fiscal year end date	--12-31

Condensed Consolidated Statemen

Condensed Consolidated Statements of Earnings (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Net Sales	$ 2,810.9	$ 3,548.3	$ 8,306.9	$ 10,546.6
Cost of goods sold	2,394.1	3,138.7	7,096.9	8,895.5
Gross margin	416.8	409.6	1,210	1,651.1
Selling, general and administrative expenses	148.2	119.9	383.4	377.5
Other operating expense	153.2	143.9	305	214
Operating earnings	115.4	145.8	521.6	1,059.6
Interest expense, net	(41.7)	(17.4)	(136.1)	(94.5)
Foreign currency transaction gain (loss)	100.9	(96.9)	(267.3)	103
Other (expense) income	(0.4)	(50.1)	6.8	(66.1)
Earnings (loss) from consolidated companies before income taxes	174.2	(18.6)	125	1,002
Provision for (benefit from) income taxes	48	(5.9)	152.9	220.8
Earnings (loss) from consolidated companies	126.2	(12.7)	(27.9)	781.2
Income (Loss) from Subsidiaries, Net of Tax	4.5	15.8	64.2	60
Net earnings including noncontrolling interests	(130.7)	(3.1)	(36.3)	(841.2)
Less: Net earnings attributable to noncontrolling interests	8.5	7.3	30.4	41.6
Net earnings (loss) attributable to Mosaic	$ 122.2	$ (4.2)	$ 5.9	$ 799.6
Basic net earnings (loss) per share attributable to Mosaic	$ 0.38	$ (0.01)	$ 0.02	$ 2.40
Basic weighted average number of shares outstanding	318.4	331.5	320.6	333
Diluted net earnings (loss) per share attributable to Mosaic	$ 0.38	$ (0.01)	$ 0.02	$ 2.39
Diluted weighted average number of shares outstanding	319.4	331.5	321.6	335.1

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Statement of Comprehensive Income [Abstract]
Net earnings (loss) including noncontrolling interest	$ 130.7	$ 3.1	$ 36.3	$ 841.2
Other comprehensive income (loss), net of tax
Foreign currency translation gain (loss)	104.6	(153.3)	(161.6)	22.1
Net actuarial gain and prior service cost	0.4	25.3	1.8	26
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax	0	0.3	0	1.2
Net gain (loss) on marketable securities held in trust fund	13.7	(11.5)	0.8	(5.5)
Other comprehensive income (loss)	118.7	(139.2)	(159)	43.8
Comprehensive income (loss)	249.4	(136.1)	(122.7)	885
Less: Comprehensive income attributable to noncontrolling interest	9	6.4	27.7	42.7
Comprehensive income (loss) attributable to Mosaic	$ 240.4	$ (142.5)	$ (150.4)	$ 842.3

Condensed Consolidated Balance

Condensed Consolidated Balance Sheet - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 301.6	$ 348.8
Receivables, Net, Current	1,031.6	1,269.2
Inventories	2,923	2,523.2
Other current assets	715	603.8
Total current assets	4,971.2	4,745
Property, plant and equipment, net of accumulated depreciation	13,683.1	13,585.4
Accumulated depreciation	10,475.6	9,914.1
Investments in nonconsolidated companies	959.9	909
Goodwill	1,117.3	1,138.6
Deferred Income Tax Assets, Net	994.3	1,079.2
Other assets	1,565.9	1,575.6
Total assets	23,291.7	23,032.8
Current liabilities:
Other Short-term Borrowings	751.7	399.7
Current maturities of long-term debt	115.3	130.1
Structured accounts payable arrangements	402.3	399.9
Accounts Payable, Current	1,178.1	1,166.9
Accrued liabilities	1,728.3	1,777.1
Total current liabilities	4,175.7	3,873.7
Long-term debt, less current maturities	3,197.4	3,231.6
Deferred Income Tax Liabilities, Net	1,101.9	1,065.5
Other noncurrent liabilities	2,855.4	2,429.2
Equity:
Preferred stock, par value	$ 0	$ 0
Preferred stock, outstanding	0	0
Preferred stock, issued	0	0
Preferred stock, authorized	15,000,000	15,000,000
Preferred stock, par value	$ 0.01	$ 0.01
Common stock, par value	$ 3.2	$ 3.2
Common stock, outstanding	317,869,351	324,103,141
Common stock, issued	394,648,083	393,875,241
Common stock, authorized	1,000,000,000	1,000,000,000
Common stock, par value	$ 0.01	$ 0.01
Capital in excess of par value	$ 1.6	$ 0
Retained earnings	13,915	14,241.9
Accumulated other comprehensive loss	(2,111.2)	(1,954.9)
Total Mosaic stockholders' equity	11,808.6	12,290.2
Noncontrolling interests	152.7	142.6
Total equity	11,961.3	12,432.8
Total liabilities and equity	23,291.7	23,032.8
Affiliated Entity
Current assets:
Accounts and Other Receivables, Net, Current	146.9	240.1
Current liabilities:
Accounts Payable, Current	$ 203.9	$ 245.2

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Cash Flows from Operating Activities
Net earnings including noncontrolling interest	$ 130.7	$ 3.1	$ 36.3	$ 841.2
Adjustments to reconcile net earnings including noncontrolling interests to net cash provided by operating activities:
Depreciation, depletion and amortization	237.9	238.7	743.4	702.9
Deferred and other income taxes			36.2	(32.5)
Equity in net (earnings) of nonconsolidated companies, net of dividends			(49.2)	(35.1)
Accretion expense for asset retirement obligations			80.9	70	$ 96.1
Share-based compensation expense			26.7	27
Unrealized loss (gain) on derivatives			22.6	11.5
Foreign Currency Transaction Loss, before Tax			117.5
Foreign Currency Transaction Gain, before Tax				(36.2)
Gain (Loss) on Disposition of Business			0	(56.5)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement			0	42.4
Other			75.4	82
Changes in assets and liabilities, excluding effects of acquisition:
Receivables, net			195.4	332.6
Inventories			(517.3)	1,107.6
Other current and noncurrent assets			(179.7)	(347.3)
Accounts payable and accrued liabilities			257.8	(926.5)
Other noncurrent liabilities			233.9	86
Net cash provided by operating activities			1,079.9	1,869.1
Cash Flows from Investing Activities
Capital expenditures			957.7	1,043.5
Purchases of available-for-sale securities - restricted			(1,162)	(1,039.7)
Proceeds from sale of available-for-sale securities - restricted			1,119.1	1,011.7
Proceeds from Sales of Business, Affiliate and Productive Assets			0	158.4
Payments to Acquire Businesses, Gross			0	(41)
Other			16.1	(0.9)
Net cash used in investing activities			(984.5)	(955)
Cash Flows from Financing Activities
Repayments of Other Short-term Debt			(12,421.3)	(6,761.9)
Proceeds from Other Short-term Debt			12,572.8	6,837.1
Repayments of inventory financing arrangement			(1,405.1)	(601.4)
Proceeds From Inventory Financing Arrangements			1,605.1	601.4
Payments of structured accounts payable arrangements			(522.3)	(1,010.6)
Proceeds from structured accounts payable arrangements			510.2	834
Collections from Factoring Receivables			330.1	1,468.6
Payments of Factoring Receivables			(328.6)	(1,468.6)
Payments of long-term debt			(55.2)	(44.8)
Payments for Repurchase of Common Stock			210.4	606
Cash dividends paid			(204.2)	(286.5)
Payments of Ordinary Dividends, Noncontrolling Interest			(17.6)	(23.7)
Proceeds from (Payments for) Other Financing Activities			(22.1)	(7.4)
Net cash used in financing activities			(168.6)	(1,069.8)
Net change in cash, cash equivalents and restricted cash			(28.7)	(152.3)
Cash, cash equivalents and restricted cash-beginning of period			360.8	754.1	754.1
Cash, cash equivalents and restricted cash-end of period	332.1	601.8	332.1	601.8	360.8
Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Continuing Operations			44.5	3.4
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Abstract]
Cash and cash equivalents	301.6	591	301.6	591	348.8
Restricted cash in other current assets	15.1	9.4	15.1	9.4
Restricted cash in other assets	15.4	1.4	15.4	1.4
Cash, cash equivalents and restricted cash-end of period	$ 332.1	$ 601.8	332.1	601.8	$ 360.8
Supplemental Disclosure of Cash Flow Information:
Interest (net of amount capitalized)			114	92.9
Capitalized interest costs			26.1	24.1
Income taxes (net of refunds)			$ 284.1	$ 421.6

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Shareholders Equity (Unaudited) - USD ($) $ in Millions	Total	Common Stock	Capital in Excess of Par Value	Retained Earnings	Accumulated Other Comprehensive Loss	Noncontrolling Interest
Beginning balance at Dec. 31, 2022	$ 12,194.2	$ 3.4	$ 0	$ 14,203.4	$ (2,152.2)	$ 139.6
Common stock shares outstanding, beginning balance (in shares) at Dec. 31, 2022		339,100,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total comprehensive income (loss)	885			799.6	42.7	42.7
Stock Issued During Period, Shares, Restricted Stock Award, Gross		1,800,000
APIC, Share-based Payment Arrangement, Restricted Stock Unit, Increase for Cost Recognition	(53.9)		(0.6)	(53.3)
Stock based compensation	$ 27		27
Stock Repurchased During Period, Shares	(12,600,000)
Stock Repurchased During Period, Value	$ 603	$ (0.1)	26.4
Stock Repurchased and Retired During Period, Value				(576.5)
Dividends	(216.7)			(216.7)
Noncontrolling Interest, Increase from Subsidiary Equity Issuance	(25.5)					(25.5)
Ending balance at Sep. 30, 2023	$ 12,207.1	$ 3.3	0	14,156.5	(2,109.5)	156.8
Common stock shares outstanding, ending balance (in shares) at Sep. 30, 2023		328,300,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends per share	$ 0.65
Excised Tax on Share Repurchases	$ 4.9
Beginning balance at Jun. 30, 2023	12,555.4	$ 3.3	8.1	14,364.8	(1,971.2)	150.4
Common stock shares outstanding, beginning balance (in shares) at Jun. 30, 2023		332,200,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total comprehensive income (loss)	(136.1)			(4.2)	(138.3)	6.4
Stock Issued During Period, Shares, Restricted Stock Award, Gross		0
APIC, Share-based Payment Arrangement, Restricted Stock Unit, Increase for Cost Recognition	(0.1)		(0.1)	0
Stock based compensation	$ 6		6
Stock Repurchased During Period, Shares	(3,900,000)
Stock Repurchased During Period, Value	$ 151.5	$ 0	14
Stock Repurchased and Retired During Period, Value				(137.5)
Dividends	(66.6)			(66.6)
Ending balance at Sep. 30, 2023	$ 12,207.1	$ 3.3	0	14,156.5	(2,109.5)	156.8
Common stock shares outstanding, ending balance (in shares) at Sep. 30, 2023		328,300,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends per share	$ 0.20
Beginning balance at Dec. 31, 2023	$ 12,432.8	$ 3.2	0	14,241.9	(1,954.9)	142.6
Common stock shares outstanding, beginning balance (in shares) at Dec. 31, 2023	324,103,141	324,100,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total comprehensive income (loss)	$ (122.7)			5.9	(156.3)	27.7
Stock Issued During Period, Shares, Restricted Stock Award, Gross		800,000
APIC, Share-based Payment Arrangement, Restricted Stock Unit, Increase for Cost Recognition	(10.5)		0	(10.5)
Stock based compensation	26.7		26.7
Stock Repurchased During Period, Value		$ 0
Stock Repurchased and Retired During Period, Value	(212.3)	(7)	(25.1)	(187.2)
Dividends	(135.1)			(135.1)
Dividends for noncontrolling interests	(17.6)					(17.6)
Ending balance at Sep. 30, 2024	$ 11,961.3	$ 3.2	1.6	13,915	(2,111.2)	152.7
Common stock shares outstanding, ending balance (in shares) at Sep. 30, 2024	317,869,351	317,900,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends per share	$ 0.42
Excised Tax on Share Repurchases	$ 1.9
Beginning balance at Jun. 30, 2024	11,830.1	$ 3.2	0	13,906.8	(2,229.4)	149.5
Common stock shares outstanding, beginning balance (in shares) at Jun. 30, 2024		319,600,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total comprehensive income (loss)	249.4			122.2	118.2	9
Stock Issued During Period, Shares, Restricted Stock Award, Gross		100,000
APIC, Share-based Payment Arrangement, Restricted Stock Unit, Increase for Cost Recognition	0		0
Stock based compensation	5.5		5.5
Stock Repurchased During Period, Value		$ 0
Stock Repurchased and Retired During Period, Value	(50.5)	(1.8)	(3.9)	(46.6)
Dividends	(67.4)			(67.4)
Dividends for noncontrolling interests	(5.8)					(5.8)
Ending balance at Sep. 30, 2024	$ 11,961.3	$ 3.2	$ 1.6	$ 13,915	$ (2,111.2)	$ 152.7
Common stock shares outstanding, ending balance (in shares) at Sep. 30, 2024	317,869,351	317,900,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Excised Tax on Share Repurchases	$ 0.5

Condensed Consolidated Statem_5

Condensed Consolidated Statements of Shareholders Equity (Unaudited) (Parentheticals) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Statement of Stockholders' Equity [Abstract]
Dividends per share		$ 0.20	$ 0.42	$ 0.65
Excised Tax on Share Repurchases	$ 0.5		$ 1.9	$ 4.9

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	9 Months Ended
Accumulated Other Comprehensive Income (Loss)	Sep. 30, 2024
Accumulated Other Comprehensive Income (Loss) [Abstract]
Comprehensive Income (Loss) Note [Text Block]	Accumulated Other Comprehensive Income (Loss) ( “ AOCI ” ) The following table sets forth the changes in AOCI, net of tax, by component during the three and nine months ended September 30, 2024 and September 30, 2023: Foreign Currency Translation Gain (Loss) Net Actuarial Gain and Prior Service Cost Amortization of Gain on Interest Rate Swap Net Gain (Loss) on Marketable Securities Held in Trust Total Three Months Ended September 30, 2024 Balance at June 30, 2024 $ (2,193.2) $ (31.6) $ 8.1 $ (12.7) $ (2,229.4) Other comprehensive income (loss) 101.6 1.1 — 17.7 120.4 Tax (expense) benefit 3.0 (0.7) — (4.0) (1.7) Other comprehensive income (loss), net of tax 104.6 0.4 — 13.7 118.7 Other comprehensive income (loss) attributable to noncontrolling interest (0.5) — — — (0.5) Balance as of September 30, 2024 $ (2,089.1) $ (31.2) $ 8.1 $ 1.0 $ (2,111.2) Three Months Ended September 30, 2023 Balance at June 30, 2023 $ (1,908.9) $ (52.4) $ 7.6 $ (17.5) $ (1,971.2) Other comprehensive income (loss) (153.8) 43.0 0.5 (14.9) (125.2) Tax (expense) benefit 0.5 (17.7) (0.2) 3.4 (14.0) Other comprehensive income (loss), net of tax (153.3) 25.3 0.3 (11.5) (139.2) Other comprehensive income (loss) attributable to noncontrolling interest 0.9 — — — 0.9 Balance as of September 30, 2023 $ (2,061.3) $ (27.1) $ 7.9 $ (29.0) $ (2,109.5) Nine Months Ended September 30, 2024 Balance at December 31, 2023 $ (1,930.2) $ (33.0) $ 8.1 $ 0.2 $ (1,954.9) Other comprehensive income (loss) (159.1) 3.2 — 1.0 (154.9) Tax (expense) benefit (2.5) (1.4) — (0.2) (4.1) Other comprehensive income (loss), net of tax (161.6) 1.8 — 0.8 (159.0) Other comprehensive income (loss) attributable to noncontrolling interest 2.7 — — — 2.7 Balance as of September 30, 2024 $ (2,089.1) $ (31.2) $ 8.1 $ 1.0 $ (2,111.2) Nine Months Ended September 30, 2023 Balance at December 31, 2022 $ (2,082.3) $ (53.1) $ 6.7 $ (23.5) $ (2,152.2) Other comprehensive income (loss) 22.3 44.1 1.5 (7.2) 60.7 Tax (expense) benefit (0.2) (18.1) (0.3) 1.7 (16.9) Other comprehensive income (loss), net of tax 22.1 26.0 1.2 (5.5) 43.8 Other comprehensive income (loss) attributable to noncontrolling interest (1.1) — — — (1.1) Balance as of September 30, 2023 $ (2,061.3) $ (27.1) $ 7.9 $ (29.0) $ (2,109.5)

Accumulated Other Comprehenive

Accumulated Other Comprehenive Income (Loss)	9 Months Ended
Accumulated Other Comprehenive Income (Loss)	Sep. 30, 2024
Accumulated Other Comprehensive Income (Loss) [Abstract]
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]	The following table sets forth the changes in AOCI, net of tax, by component during the three and nine months ended September 30, 2024 and September 30, 2023: Foreign Currency Translation Gain (Loss) Net Actuarial Gain and Prior Service Cost Amortization of Gain on Interest Rate Swap Net Gain (Loss) on Marketable Securities Held in Trust Total Three Months Ended September 30, 2024 Balance at June 30, 2024 $ (2,193.2) $ (31.6) $ 8.1 $ (12.7) $ (2,229.4) Other comprehensive income (loss) 101.6 1.1 — 17.7 120.4 Tax (expense) benefit 3.0 (0.7) — (4.0) (1.7) Other comprehensive income (loss), net of tax 104.6 0.4 — 13.7 118.7 Other comprehensive income (loss) attributable to noncontrolling interest (0.5) — — — (0.5) Balance as of September 30, 2024 $ (2,089.1) $ (31.2) $ 8.1 $ 1.0 $ (2,111.2) Three Months Ended September 30, 2023 Balance at June 30, 2023 $ (1,908.9) $ (52.4) $ 7.6 $ (17.5) $ (1,971.2) Other comprehensive income (loss) (153.8) 43.0 0.5 (14.9) (125.2) Tax (expense) benefit 0.5 (17.7) (0.2) 3.4 (14.0) Other comprehensive income (loss), net of tax (153.3) 25.3 0.3 (11.5) (139.2) Other comprehensive income (loss) attributable to noncontrolling interest 0.9 — — — 0.9 Balance as of September 30, 2023 $ (2,061.3) $ (27.1) $ 7.9 $ (29.0) $ (2,109.5) Nine Months Ended September 30, 2024 Balance at December 31, 2023 $ (1,930.2) $ (33.0) $ 8.1 $ 0.2 $ (1,954.9) Other comprehensive income (loss) (159.1) 3.2 — 1.0 (154.9) Tax (expense) benefit (2.5) (1.4) — (0.2) (4.1) Other comprehensive income (loss), net of tax (161.6) 1.8 — 0.8 (159.0) Other comprehensive income (loss) attributable to noncontrolling interest 2.7 — — — 2.7 Balance as of September 30, 2024 $ (2,089.1) $ (31.2) $ 8.1 $ 1.0 $ (2,111.2) Nine Months Ended September 30, 2023 Balance at December 31, 2022 $ (2,082.3) $ (53.1) $ 6.7 $ (23.5) $ (2,152.2) Other comprehensive income (loss) 22.3 44.1 1.5 (7.2) 60.7 Tax (expense) benefit (0.2) (18.1) (0.3) 1.7 (16.9) Other comprehensive income (loss), net of tax 22.1 26.0 1.2 (5.5) 43.8 Other comprehensive income (loss) attributable to noncontrolling interest (1.1) — — — (1.1) Balance as of September 30, 2023 $ (2,061.3) $ (27.1) $ 7.9 $ (29.0) $ (2,109.5)

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023	Dec. 31, 2022
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	$ (2,111.2)	$ (2,109.5)	$ (2,111.2)	$ (2,109.5)	$ (2,229.4)	$ (1,954.9)	$ (1,971.2)	$ (2,152.2)
Other Comprehensive Income (Loss), Tax	120.4	(125.2)	(154.9)	60.7
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax	(1.7)	(14)	(4.1)	(16.9)
OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax	13.7	(11.5)	0.8	(5.5)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest	118.7	(139.2)	(159)	43.8
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest	(0.5)	0.9	2.7	(1.1)
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	(2,089.1)	(2,061.3)	(2,089.1)	(2,061.3)	(2,193.2)	(1,930.2)	(1,908.9)	(2,082.3)
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax	101.6	(153.8)	(159.1)	22.3
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax	3	0.5	(2.5)	(0.2)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax	104.6	(153.3)	(161.6)	22.1
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest	(0.5)	0.9	2.7	(1.1)
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	(31.2)	(27.1)	(31.2)	(27.1)	(31.6)	(33)	(52.4)	(53.1)
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, before Tax	1.1	43	3.2	44.1
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax	(0.7)	(17.7)	(1.4)	(18.1)
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax	0.4	25.3	1.8	26
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest	0	0	0	0
AOCI, Derivative Qualifying as Hedge, Excluded Component, Noncontrolling Interest [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	8.1	7.9	8.1	7.9	8.1	8.1	7.6	6.7
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax	0	0.3	0	1.2
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax	0	(0.2)	0	(0.3)
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax	0	0.5	0	1.5
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest	0	0	0	0
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	1	(29)	1	(29)	$ (12.7)	$ 0.2	$ (17.5)	$ (23.5)
Net (loss) gain on marketable securities held in trust fund, net of tax	(4)	3.4	(0.2)	1.7
OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax	13.7	(11.5)	0.8	(5.5)
Other Comprehensive Income (Loss), Securities, Available-for-sale, Tax	17.7	(14.9)	1	(7.2)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest	$ 0	$ 0	$ 0	$ 0

Organization and Nature of Busi

Organization and Nature of Business	9 Months Ended
Organization and Nature of Business	Sep. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Nature of Business	Organization and Nature of Business The Mosaic Company (“ Mosaic , ” and, with its consolidated subsidiaries, “ we , ” “ us , ” “ our , ” or the “ Company ”) produces and markets concentrated phosphate and potash crop nutrients. We conduct our business through wholly and majority owned subsidiaries and businesses in which we own less than a majority or a non-controlling interest, including consolidated variable interest entities and investments accounted for by the equity method. We are organized into the following business segments: • Our Phosphate business segment owns and operates mines and production facilities in Florida which produce concentrated phosphate crop nutrients and phosphate-based animal feed ingredients, and processing plants in Louisiana which produce concentrated phosphate crop nutrients. The Phosphate segment includes our 75% interest in the Miski Mayo Phosphate Mine (“ Miski Mayo ”) in Peru. These results are consolidated in the Phosphate segment. The Phosphate segment also includes our 25% interest in the Ma’aden Wa’ad Al Shamal Phosphate Company (“ MWSPC ”), a joint venture to develop, own and operate integrated phosphate production facilities in the Kingdom of Saudi Arabia. We market approximately 25% of MWSPC phosphate production. We recognize our equity in the net earnings or losses relating to MWSPC on a one-quarter lag in our Condensed Consolidated Statements of Earnings. • Our Potash business segment owns and operates potash mines and production facilities in Canada and the U.S. which produce potash-based crop nutrients, animal feed ingredients and industrial products. Potash sales include domestic and international sales. We are a member of Canpotex, Limited (“ Canpotex ”), an export association of Canadian potash producers through which we sell our Canadian potash outside the U.S. and Canada. • Our Mosaic Fertilizantes business segment includes the assets in Brazil that we acquired in the 2018 acquisition (the “ Acquisition ”) of Vale Fertilizantes S.A. (now known as Mosaic Fertilizantes P&K S.A.), which consist of five phosphate rock mines, four phosphate chemical plants and a potash mine. The segment also includes our legacy distribution business in South America, which consists of sales offices, crop nutrient blending and bagging facilities, port terminals and warehouses in Brazil and Paraguay. We also have a majority interest in Fospar S.A., which owns and operates a single superphosphate granulation plant and a deep-water port and throughput warehouse terminal facility in Brazil. Intersegment eliminations, unrealized mark-to-market gains/losses on derivatives, debt expenses, and the results of the China and India distribution businesses are included within Corporate, Eliminations and Other.

Summary of Significant Accounti

Summary of Significant Accounting Policies	9 Months Ended
Summary of Significant Accounting Policies	Sep. 30, 2024
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Statement Presentation and Basis of Consolidation The accompanying unaudited Condensed Consolidated Financial Statements of Mosaic have been prepared on the accrual basis of accounting and in accordance with the requirements of the Securities and Exchange Commission (“ SEC ”) for interim financial reporting. As permitted under these rules, certain footnotes and other financial information that are normally required by accounting principles generally accepted in the United States (“ GAAP ”) can be condensed or omitted. The Condensed Consolidated Financial Statements included in this document reflect, in the opinion of our management, all adjustments (consisting of only normal recurring adjustments) necessary for a fair presentation of the results for the interim periods presented. The following notes should be read in conjunction with the accounting policies and other disclosures in the Notes to the Consolidated Financial Statements included in our Annual Report on Form 10-K filed with the SEC for the year ended December 31, 2023 (the “ 10-K Report ”). Sales, expenses, cash flows, assets and liabilities can and do vary during the year as a result of seasonality and other factors. Therefore, interim results are not necessarily indicative of the results to be expected for the full fiscal year. The accompanying Condensed Consolidated Financial Statements include the accounts of Mosaic, its majority owned subsidiaries, and certain variable interest entities in which Mosaic is the primary beneficiary. Certain investments in companies where we do not have control but have the ability to exercise significant influence are accounted for by the equity method. Accounting Estimates Preparation of the Condensed Consolidated Financial Statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of net sales and expenses during the reporting periods. The most significant estimates made by management relate to the estimates of fair value of acquired assets and liabilities, the recoverability of non-current assets including goodwill, the useful lives and net realizable values of long-lived assets, environmental and reclamation liabilities, including asset retirement obligations (“ ARO ”), and income tax-related accounts, including the valuation allowance against deferred income tax assets. Actual results could differ from these estimates.

Recently Issued Accounting Guid

Recently Issued Accounting Guidance	9 Months Ended
Recently Issued Accounting Guidance	Sep. 30, 2024
Recently Issued Accounting Guidance [Abstract]
Accounting Standards Update and Change in Accounting Principle [Text Block]	Recently Issued Accounting Guidance In September 2022, the Financial Accounting Standards Board (“ FASB ”) issued guidance which requires that a buyer in a supplier financing program make annual disclosures about the program’s key terms, the balance sheet presentation of related amounts, the confirmed amount outstanding at the end of the period and associated rollforward information. We adopted this standard as of January 1, 2023, except for the amendment on rollforward information, which is effective for fiscal years beginning after December 15, 2023 and which we will adopt with our 2024 10-K Report. We have historically presented supplier financing programs separately on the face of the balance sheet as structured accounts payable arrangements and disclosed key terms of such programs. As such, adoption of this standard did not impact our balance sheet presentation or footnote disclosures. In November 2023, the FASB issued guidance to improve reportable segment disclosure requirements, primarily through additional disclosures about significant segment expenses. The standard is effective for fiscal years beginning after December 15, 2023 (our fiscal 2024), and interim periods within fiscal years beginning after December 15, 2024 (our fiscal 2025), with early adoption permitted. The amendments would be applied retrospectively to all prior periods presented in the financial statements. We will adopt this in 2024 and expect adoption of this guidance will modify our disclosures, but we do not expect it to have a material effect on our consolidated financial statements. In December 2023, the FASB issued guidance to provide more disaggregation of income tax disclosures on the reconciliations of the income tax rate and income taxes paid. We are required to adopt the guidance in the first quarter of fiscal 2025, although early adoption is permitted. We are currently evaluating the disclosure requirements related to the new standard. In November 2024, the FASB issued guidance which requires more detailed disclosure about specified categories of expenses (purchases of inventory, employee compensation, depreciation, intangible asset amortization and depletion) included in certain expense captions on the face of the income statement. Additionally, the amendments require disclosure of the total amount of selling expenses and an annual disclosure of the definition of selling expenses. These amendments are effective for fiscal years beginning after December 15, 2026, and for interim periods within fiscal years beginning after December 15, 2027, with early adoption permitted. The disclosures may be applied either prospectively or retrospectively to any or all prior periods presented in the financial statements. We are currently evaluating the impact this new guidance will have on our disclosures.

Other Financial Statement Data

Other Financial Statement Data	9 Months Ended
Other Financial Statement Data	Sep. 30, 2024
Balance Sheet Related Disclosures [Abstract]
Other Financial Statement Data	Other Financial Statement Data The following provides add i tional information concerning selected balance sheet accounts: September 30, 2024 December 31, 2023 Other current assets Income and other taxes receivable $ 396.5 $ 269.3 Prepaid expenses 285.0 284.3 Other 33.5 50.2 $ 715.0 $ 603.8 Other assets Restricted cash $ 15.4 $ 3.4 MRO inventory 176.3 166.3 Marketable securities held in trust 729.6 708.6 Operating lease right-of-use assets 204.6 229.8 Indemnification asset 20.6 20.9 Long-term receivable 16.7 21.8 Cloud computing cost 177.2 138.9 Other 225.5 285.9 $ 1,565.9 $ 1,575.6 Accrued liabilities Accrued dividends $ 3.3 $ 72.3 Payroll and employee benefits 168.6 182.6 Asset retirement obligations 380.6 377.4 Customer prepayments (a) 419.5 261.8 Accrued income and other taxes 145.2 190.0 Operating lease obligation 55.6 65.3 Other 555.5 627.7 $ 1,728.3 $ 1,777.1 Other noncurrent liabilities Asset retirement obligations $ 2,169.9 $ 1,836.0 Accrued pension and postretirement benefits 111.5 168.1 Operating lease obligation 158.2 119.7 Unrecognized tax benefits 30.1 30.5 Other 385.7 274.9 $ 2,855.4 $ 2,429.2 ______________________________ (a) The timing of recognition of revenue related to our performance obligations may be different than the timing of collection of cash related to those performance obligations. Specifically, we collect prepayments from certain customers in Brazil. In addition, cash collection from Canpotex may occur prior to delivery of product to the end customer. We generally satisfy our contractual liabilities within one quarter of incurring the liability.

Earnings Per Share

Earnings Per Share	9 Months Ended
Earnings Per Share	Sep. 30, 2024
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share The numerator for basic and diluted earnings per share (“ EPS ”) is net earnings attributable to Mosaic. The denominator for basic EPS is the weighted average number of shares outstanding during the period. The denominator for diluted EPS also includes the weighted average number of additional common shares that would have been outstanding if the dilutive potential common shares had been issued, unless the shares are anti-dilutive. The following is a reconciliation of the numerator and denominator for the basic and diluted EPS computations: Three Months Ended September 30, Nine Months Ended September 30, 2024 2023 2024 2023 Net income (loss) attributable to Mosaic $ 122.2 $ (4.2) $ 5.9 $ 799.6 Basic weighted average number of shares outstanding 318.4 331.5 320.6 333.0 Dilutive impact of share-based awards 1.0 — 1.0 2.1 Diluted weighted average number of shares outstanding 319.4 331.5 321.6 335.1 Basic net income (loss) per share attributable to Mosaic $ 0.38 $ (0.01) $ 0.02 $ 2.40 Diluted net income (loss) per share attributable to Mosaic $ 0.38 $ (0.01) $ 0.02 $ 2.39 A total of 1.4 million and 0.8 million shares of common stock subject to issuance related to share-based awards for the three and nine months ended September 30, 2024, and 0.6 million and 0.4 million for the three and nine months ended September 30, 2023 have been excluded from the calculation of diluted EPS because the effect would have been anti-dilutive.

Inventories

Inventories	9 Months Ended
Inventories	Sep. 30, 2024
Inventory Disclosure [Abstract]
Inventories	Inventories Inventories consist of the following: September 30, 2024 December 31, 2023 Raw materials $ 125.7 $ 135.8 Work in process 991.7 964.8 Finished goods 1,563.6 1,178.0 Final price deferred (a) 71.7 61.5 Operating materials and supplies 170.3 183.1 $ 2,923.0 $ 2,523.2 ______________________________ (a) Final price deferred is product that has shipped to customers, but the price has not yet been agreed upon.

Goodwill

Goodwill	9 Months Ended
Goodwill	Sep. 30, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	Goodwill Mosaic had goodwill of $1.1 billion as of September 30, 2024 and December 31, 2023, respectively. We review goodwill for impairment annually in October and at any time events or circumstances indicate that the carrying value may not be fully recoverable, which is based on our accounting policy and GAAP. The changes in the carrying amount of goodwill, by reporting unit, are as follows: Potash Mosaic Fertilizantes Corporate, Eliminations and Other Total Balance as of December 31, 2023 $ 1,026.9 $ 99.6 $ 12.1 $ 1,138.6 Foreign currency translation (18.2) (3.1) — (21.3) Balance as of September 30, 2024 $ 1,008.7 $ 96.5 $ 12.1 $ 1,117.3 We will perform our next annual goodwill impairment analysis for each of our reporting units as of October 31, 2024. Subsequent to our 2023 annual evaluation, on December 28, 2023, Brazil enacted a tax law change that eliminates the VAT preference starting in 2024. We are assessing the full impact of this change along with outlook for the business. The current estimated fair value of our Mosaic Fertilizantes reporting unit is not significantly in excess of its carrying value. Because we currently believe that our long-term financial goals for this reporting unit will be achieved, we concluded that the goodwill assigned to this reporting unit was not impaired, but could be at risk of future impairment.

Marketable Securities Held in T

Marketable Securities Held in Trusts	9 Months Ended
Marketable Securities Held in Trusts	Sep. 30, 2024
Investments, Debt and Equity Securities [Abstract]
Marketable Securities Held in Trusts	Marketable Securities Held in Trusts In August 2016, Mosaic deposited $630 million into two trust funds (together, the “ RCRA Trusts ”) created to provide additional financial assurance in the form of cash for the estimated costs (“ Gypstack Closure Costs ”) of closure and long-term care of our Florida and Louisiana phosphogypsum management systems (“ Gypstacks ”), as described further in Note 10 of our Notes to Condensed Consolidated Financial Statements. Our actual Gypstack Closure Costs are generally expected to be paid by us in the normal course of our Phosphate business; however, funds held in each of the RCRA Trusts can be drawn by the applicable governmental authority in the event we cannot perform our closure and long-term care obligations. When our estimated Gypstack Closure Costs with respect to the facilities associated with a RCRA Trust are sufficiently lower than the amount on deposit in that RCRA Trust, we have the right to request that the excess funds be released to us. The same is true for the RCRA Trust balance remaining after the completion of our obligations, which will be performed over a period that may not end until three decades or more after a Gypstack has been closed. The investments held by the RCRA Trusts are managed by independent investment managers with discretion to buy, sell and invest pursuant to the objectives and standards set forth in the related trust agreements. Amounts reserved to be held or held in the RCRA Trusts (including losses or reinvested earnings) are included in other assets on our Condensed Consolidated Balance Sheets. The RCRA Trusts hold investments, which are restricted from our general use, in marketable debt securities classified as available-for-sale and are carried at fair value. As a result, unrealized gains and losses are included in other comprehensive income until realized, unless it is determined that the entire unamortized cost basis of the investment is not expected to be recovered. A credit loss would then be recognized in operations for the amount of the expected credit loss. As of September 30, 2024, we expect to recover our amortized cost on all available-for-sale securities and have not established an allowance for credit loss. We review the fair value hierarchy classification on a quarterly basis. Changes in the ability to observe valuation inputs may result in a reclassification of levels for certain securities within the fair value hierarchy. We determine the fair market values of our available-for-sale securities and certain other assets based on the fair value hierarchy described below: Level 1: Values based on unadjusted quoted prices in active markets that are accessible at the measurement date for identical assets or liabilities. Level 2: Values based on quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, or model-based valuation techniques for which all significant assumptions are observable in the market. Level 3: Values generated from model-based techniques that use significant assumptions not observable in the market. These unobservable assumptions reflect our own estimates of assumptions that market participants would use in pricing the asset or liability. Valuation techniques include use of option pricing models, discounted cash flow models and similar techniques. The estimated fair value of the investments in the RCRA Trusts as of September 30, 2024 and December 31, 2023 are as follows: September 30, 2024 Amortized Gross Gross Fair Level 1 Cash and cash equivalents $ 1.9 $ — $ — $ 1.9 Level 2 Corporate debt securities 202.6 3.6 (4.8) 201.4 Municipal bonds 208.9 2.7 (2.1) 209.5 U.S. government bonds 296.3 4.1 — 300.4 Total $ 709.7 $ 10.4 $ (6.9) $ 713.2 December 31, 2023 Amortized Gross Gross Fair Level 1 Cash and cash equivalents $ 1.0 $ — $ — $ 1.0 Level 2 Corporate debt securities 204.6 1.9 (8.4) 198.1 Municipal bonds 206.9 1.9 (4.1) 204.7 U.S. government bonds 268.6 11.5 (0.3) 279.8 Total $ 681.1 $ 15.3 $ (12.8) $ 683.6 The following tables show gross unrealized losses and fair values of the RCRA Trusts ’ available-for-sale securities that have been in a continuous unrealized loss position for which an allowance for credit losses has not been recorded as of September 30, 2024 and December 31, 2023 : September 30, 2024 December 31, 2023 (in millions) Fair Gross Fair Gross Securities that have been in a continuous loss position for less than 12 months: Corporate debt securities $ 5.3 $ — $ 5.4 $ (0.1) Municipal bonds 25.7 (0.2) 42.3 (0.2) U.S. government bonds 6.4 — 26.4 (0.3) $ 37.4 $ (0.2) $ 74.1 $ (0.6) Securities that have been in a continuous loss position for more than 12 months: Corporate debt securities $ 86.3 $ (4.8) $ 121.5 $ (8.3) Municipal bonds 57.3 (1.9) 84.1 (3.9) $ 143.6 $ (6.7) $ 205.6 $ (12.2) The following table summarizes the balance by contractual maturity of the available-for-sale debt securities invested by the RCRA Trusts as of September 30, 2024. Actual maturities may differ from contractual maturities because the issuers of the securities may have the right to prepay obligations before the underlying contracts mature. September 30, 2024 Due in one year or less $ 24.1 Due after one year through five years 275.3 Due after five years through ten years 350.4 Due after ten years 61.5 Total debt securities $ 711.3

Financing Arrangements Financin

Financing Arrangements Financing Arrangements	9 Months Ended
Financing Arrangements Financing Arrangements	Sep. 30, 2024
Financing Arrangements [Abstract]
Debt Disclosure	Financing Arrangements Inventory Financing Arrangement We have an inventory financing arrangement whereby we can sell up to $625 million of certain inventory for cash and subsequently repurchase the inventory at an agreed upon price and time in the future, not to exceed 180 days. Under the terms of the agreement, we may borrow up to 90% of the value of the inventory. It is later repurchased by Mosaic at the original sale price plus interest and any transaction costs. As of September 30, 2024 and December 31, 2023, we had financed inventory of $200.0 million and zero, respectively, under this arrangement, which is included in short-term debt on the Condensed Consolidated Balance Sheet. Receivable Purchasing Arrangement We finance certain accounts receivable through a Receivable Purchasing Agreement (“ RPA ”) with banks whereby, from time-to-time, we sell the receivables to bank counterparties. The net face value of the purchased receivables may not exceed $600 million at any point in time. The purchase price of the receivable sold under the RPA is the face value of the receivable less an agreed upon discount. The receivables sold under the RPA are accounted for as a true sale. Upon sale, these receivables are removed from the Condensed Consolidated Balance Sheets. Cash received is presented as cash provided by operating activities in the Condensed Consolidated Statements of Cash Flows. During the three and nine months ended September 30, 2024, the Company sold approximately $97.0 million and $324.9 million, respectively, of accounts receivable under this arrangement. During the three and nine months ended September 30, 2023, the Company sold approximately $115.4 million and $1.2 billion, respectively, under this arrangement. Discounts on sold receivables were not material for any period presented. Following such sales, we continue to service the collection of the receivables on behalf of the banks without further consideration. As of September 30, 2024, $1.5 million had been collected but not yet remitted to the bank. As of December 31, 2023, there was no amount outstanding to be remitted to the banks. Any outstanding amount is classified in accrued liabilities on the Condensed Consolidated Balance Sheets. Cash collected and remitted are presented as cash used in financing activities in the Condensed Consolidated Statements of Cash Flows. Structured Accounts Payable Arrangements In Brazil, we finance some of our potash-based fertilizer, sulfur, ammonia and other raw material product purchases through third-party contractual arrangements. These arrangements provide that the third-party intermediary advance the amount of the scheduled payment to the vendor, less an appropriate discount, at a scheduled payment date. Mosaic then makes payment to the third-party intermediary at dates ranging from 105 to 180 days from date of shipment. As of September 30, 2024 and December 31, 2023, the total structured accounts payable arrangements were $402.3 million and $399.9 million, respectively. Commercial Paper Note Program In September 2022, we established a commercial paper program which allows us to issue unsecured commercial paper notes with maturities that vary, but do not exceed 397 days from the date of issue, up to a maximum aggregate face or principal amount outstanding at any time of $2.5 billion. We plan to use the revolving credit facility as a liquidity backstop for borrowings under the commercial paper program. As of September 30, 2024, we had $499.4 million outstanding under this program, with a weighted average interest rate of 5.01% and remaining average term of nine days. As of December 31, 2023, we had $399.5 million outstanding under this program, with a weighted average interest rate of 5.62% and a remaining average term of nine days. Term Loan Facility In May 2023, we entered into a 10-year senior unsecured term loan facility whereby we can draw up to $700 million. The term loan matures on May 18, 2033. We may voluntarily prepay the outstanding principal without premium or penalty. As of September 30, 2024, $500.0 million has been drawn under this facility. Interest rates for the term loan are variable and are based on the Secured Overnight Financing Rate (“ SOFR

Asset Retirement Obligations

Asset Retirement Obligations	9 Months Ended
Asset Retirement Obligations	Sep. 30, 2024
Asset Retirement Obligation Disclosure [Abstract]
Asset Retirement Obligation Disclosure	Asset Retirement Obligations We recognize our estimated AROs in the period in which we have an existing legal obligation associated with the retirement of a tangible long-lived asset, and the amount of the liability can be reasonably estimated. The ARO is recognized at fair value when the liability is incurred with a corresponding increase in the carrying amount of the related long-lived asset. We depreciate the tangible asset over its estimated useful life. The liability is adjusted in subsequent periods through accretion expense, which represents the increase in the present value of the liability due to the passage of time. Such depreciation and accretion expenses are included in cost of goods sold for operating facilities and other operating expense for indefinitely closed facilities. Our legal obligations related to asset retirement require us to: (i) reclaim lands disturbed by mining as a condition to receive permits to mine phosphate ore reserves; (ii) treat low pH process water in Gypstacks to neutralize acidity; (iii) close and monitor Gypstacks at our Florida and Louisiana facilities at the end of their useful lives; (iv) remediate certain other conditional obligations; (v) remove all surface structures and equipment, plug and abandon mine shafts, contour and revegetate, as necessary, and monitor for five years after closing our Carlsbad, New Mexico facility; (vi) decommission facilities, manage tailings and execute site reclamation at our Saskatchewan potash mines at the end of their useful lives; (vii) de-commission mines in Brazil and Peru; and (viii) decommission plant sites and close Gypstacks in Brazil. The estimated liability for these legal obligations is based on the estimated cost to satisfy the above obligations, which is discounted using a credit-adjusted risk-free rate. A reconciliation of our AROs is as follows: (in millions) September 30, 2024 December 31, 2023 AROs, beginning of period $ 2,213.4 $ 1,905.6 Liabilities incurred 26.8 22.9 Liabilities settled (173.6) (198.5) Accretion expense 80.9 96.1 Revisions in estimated cash flows 433.8 365.1 Foreign currency translation (30.8) 22.2 AROs, end of period 2,550.5 2,213.4 Less current portion 380.6 377.4 Non-current portion of AROs $ 2,169.9 $ 1,836.0 North America Gypstack Closure Costs A majority of our ARO relates to Gypstack Closure Costs in Florida and Louisiana. For financial reporting purposes, we recognize our estimated Gypstack Closure Costs at their present value. This present value determined for financial reporting purposes is reflected on our Consolidated Balance Sheets in accrued liabilities and other non-current liabilities. As discussed below, we have arrangements to provide financial assurance for the estimated Gypstack Closure Costs associated with our facilities in Florida and Louisiana. EPA RCRA Initiative. On September 30, 2015, we and our subsidiary, Mosaic Fertilizer, LLC (“ Mosaic Fertilizer ”), reached agreements with the U.S. Environmental Protection Agency (“ EPA ”), the U.S. Department of Justice (“ DOJ ”), the Florida Department of Environmental Protection (“ FDEP ”) and the Louisiana Department of Environmental Quality on the terms of two consent decrees (collectively, the “ 2015 Consent Decrees ”) to resolve claims relating to our management of certain waste materials onsite at our Riverview, New Wales, Green Bay, South Pierce and Bartow fertilizer manufacturing facilities in Florida, and our Faustina and Uncle Sam facilities in Louisiana. This followed a 2003 announcement by the EPA Office of Enforcement and Compliance Assurance that it would be targeting facilities in mineral processing industries, including phosphoric acid producers, for a thorough review under the U.S. Resource Conservation and Recovery Act (“ RCRA ”) and related state laws. As discussed below, a separate consent decree was previously entered into with the EPA and the FDEP with respect to RCRA compliance at the Plant City, Florida phosphate concentrates facility (the “ Plant City Facility ”) that we acquired as part of our acquisition of the Florida phosphate assets and assumption of certain related liabilities of CF Industries, Inc. (“ CF ”). The remaining monetary obligations under the 2015 Consent Decrees include a provision of additional financial assurance for the estimated Gypstack Closure Costs for Gypstacks at the covered facilities. The RCRA Trusts are discussed in Note 8 to our Condensed Consolidated Financial Statements. In addition, we have agreed to guarantee the difference between the amounts held in each RCRA Trust (including any earnings) and the estimated closure and long-term care costs. As of December 31, 2023, the undiscounted amount of our Gypstack Closure Costs ARO associated with the facilities covered by the 2015 Consent Decrees, determined using the assumptions used for financial reporting purposes, was approximately $2.2 billion, and the present value of our Gypstack Closure Costs ARO reflected in our Consolidated Balance Sheet for those facilities was approximately $819.9 million. Plant City and Bonnie Facilities. As part of the CF Phosphate Assets Acquisition, we assumed certain AROs related to Gypstack Closure Costs at both the Plant City Facility and a closed Florida phosphate concentrates facility in Bartow, Florida (the “ Bonnie Facility ”) that we acquired. Associated with these assets are two related financial assurance arrangements for which we became responsible and that provided sources of funds for the estimated Gypstack Closure Costs for these facilities. Pursuant to federal or state laws, the applicable government entities are permitted to draw against such amounts in the event we cannot perform such closure activities. One of the financial assurance arrangements was initially a trust (the “ Plant City Trust ”) established to meet the requirements under a consent decree with the EPA and the FDEP with respect to RCRA compliance at Plant City. The Plant City Trust also satisfied Florida financial assurance requirements at that site. Beginning in September 2016, as a substitute for the financial assurance provided through the Plant City Trust, we have provided financial assurance for the Plant City Facility in the form of a surety bond (the “ Plant City Bond ”). The amount of the Plant City Bond is $327.1 million, which reflects our closure cost estimates as of March 7, 2024. The other financial assurance arrangement was also a trust fund (the “ Bonnie Facility Trust ”) established to meet the requirements under Florida financial assurance regulations that apply to the Bonnie Facility. In July 2018, we received $21.0 million from the Bonnie Facility Trust by substituting for the trust fund a financial test mechanism (“ Bonnie Financial Test ”) supported by a corporate guarantee as allowed by state regulations. Both financial assurance funding obligations require estimates of future expenditures that could be impacted by refinements in scope, technological developments, new information, cost inflation, changes in regulations, discount rates and the timing of activities. Under our current approach to satisfying applicable requirements, additional financial assurance would be required in the future if increases in cost estimates exceed the face amount of the Plant City Bond or the amount supported by the Bonnie Financial Test. As of September 30, 2024 and December 31, 2023, the aggregate amounts of AROs associated with the combined Plant City Facility and Bonnie Facility Gypstack closure costs included in our Condensed Consolidated Balance Sheets were $389.5 million and $361.8 million, respectively. The aggregate amount represented by the Plant City Bond exceeds the present value of the aggregate amount of ARO associated with that facility. This is because the amount of financial assurance we are required to provide represents the aggregate undiscounted estimated amount to be paid by us in the normal course of our Phosphate business over a period that may not end until three decades or more after the Gypstack has been closed, whereas the ARO included in our Condensed Consolidated Balance Sheet reflects the discounted present value of those estimated amounts.

Income Taxes

Income Taxes	9 Months Ended
Income Taxes	Sep. 30, 2024
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes During the nine months ended September 30, 2024, gross unrecognized tax benefits decreased by $1.8 million to $24.0 million. The decrease is primarily related to statute expirations and settlements, partially offset by recording U.S. and non-U.S. reserves and foreign exchange. If recognized, approximately $20.4 million in unrecognized tax benefits would affect our effective tax rate and net earnings in future periods. We recognize interest and penalties related to unrecognized tax benefits as a component of our income tax provision. We had accrued interest and penalties totaling $7.7 million and $6.4 million as of September 30, 2024 and December 31, 2023, respectively, that were included in other noncurrent liabilities in the Condensed Consolidated Balance Sheets. Accounting for uncertain tax positions is determined by prescribing the minimum probability threshold that a tax position is more likely than not to be sustained based on the technical merits of the position. Mosaic is continually under audit by various authorities in the normal course of business. Such tax authorities may raise issues contrary to positions taken by the Company. If such positions are ultimately not sustained by the Company, this could result in material assessments to the Company. The costs related to defending, if needed, such positions on appeal or in court may be material. The Company believes that any issues raised have been properly accounted for in its current financial statements. For the three months ended September 30, 2024, discrete tax items recorded in tax expense was a benefit of approximately $4.4 million. The net tax benefit consisted primarily of the true up of estimates from our U.S. tax return provision and changes in valuation allowance. In addition to items specific to the period, our income tax rate is impacted by the mix of earnings across the jurisdictions in which we operate, by a benefit associated with depletion, and by the impact of certain entities being taxed in both their foreign jurisdiction and the U.S., including foreign tax credits for various taxes incurred. Generally, for interim periods, income tax is equal to the total of (1) year-to-date pretax income multiplied by our forecasted effective tax rate, plus (2) tax expense items specific to the period. In situations where we expect to report losses for which we do not expect to receive tax benefits, we are required to apply separate forecasted effective tax rates to those jurisdictions rather than including them in the consolidated effective tax rate. For the three months ended September 30, 2024, income tax expense was impacted by this set of rules, resulting in an additional expense of $0.3 million compared to what would have been recorded under the general rule on a consolidated basis. For the nine months ended September 30, 2024, discrete tax items recorded in tax expense was an expense of approximately $114.9 million. The net tax expense consisted primarily of the impact of accruing withholding tax expense on expected foreign distributions associated with changes in management’s indefinite reinvestment assertion on select foreign earnings under ASC 740-30 (formerly APB 23), share-based excess benefit, true-up of estimates from our U.S and non-U.S. tax return provisions, non-U.S. audit settlements, and other miscellaneous costs. In addition to items specific to the period, our income tax rate is impacted by the mix of earnings across the jurisdictions in which we operate, by a benefit associated with depletion, and by the impact of certain entities being taxed in both their foreign jurisdiction and the U.S., including foreign tax credits for various taxes incurred.

Accounting for Derivative Instr

Accounting for Derivative Instruments and Hedging Activities	9 Months Ended
	Sep. 30, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Accounting for Derivative Instruments and Hedging Activities	Derivative Instruments and Hedging Activities We periodically enter into derivatives to mitigate our exposure to foreign currency risks, interest rate movements and the effects of changing commodity prices. We record all derivatives on the Condensed Consolidated Balance Sheets at fair value. The fair value of these instruments is determined by using quoted market prices, third-party comparables or internal estimates. We net our derivative asset and liability positions when we have a master netting arrangement in place. Changes in the fair value of the foreign currency, commodity and freight derivatives are immediately recognized in earnings. We do not apply hedge accounting treatments to our foreign currency exchange contracts, commodities contracts or freight contracts. Unrealized gains and losses on foreign currency exchange contracts used to hedge cash flows related to the production of our products are included in cost of goods sold in the Condensed Consolidated Statements of Earnings. Unrealized gains and losses on commodities contracts and certain forward freight agreements are also recorded in cost of goods sold in the Condensed Consolidated Statements of Earnings. Unrealized gains or losses on foreign currency exchange contracts used to hedge cash flows that are not related to the production of our products are included in the foreign currency transaction gain/loss caption in the Condensed Consolidated Statements of Earnings. From time to time, we enter into fixed-to-floating interest rate contracts. We apply fair value hedge accounting treatment to these contracts. Under these arrangements, we agree to exchange, at specified intervals, the difference between fixed and floating interest amounts calculated by reference to an agreed-upon notional principal amount. The mark-to-market of these fair value hedges is recorded as gains or losses in interest expense. We had no fixed-to-floating interest rate swap agreements in effect as of September 30, 2024 and December 31, 2023. As of September 30, 2024 and December 31, 2023, the gross asset position of our derivative instruments was $6.1 million and $36.4 million, respectively, and the gross liability position of our liability instruments was $9.6 million and $17.2 million, respectively. The following is the total absolute notional volume associated with our outstanding derivative instruments: (in millions of Units) September 30, 2024 December 31, 2023 Derivative Instrument Derivative Category Unit of Measure Foreign currency derivatives Foreign currency US Dollars 1,634.6 2,418.7 Natural gas derivatives Commodity MMbtu 5.4 17.1 Credit-Risk-Related Contingent Features Certain of our derivative instruments contain provisions that are governed by International Swap and Derivatives Association agreements with the counterparties. These agreements contain provisions that allow us to settle for the net amount between payments and receipts, and also state that if our debt were to be rated below investment grade, certain counterparties could request full collateralization on derivative instruments in net liability positions. The aggregate fair value of all derivative instruments with credit-risk-related contingent features that were in a liability position as of September 30, 2024 and December 31, 2023 was $9.4 million and $15.6 million, respectively. We have no cash collateral posted in association with these contracts. If the credit-risk-related contingent features underlying these agreements were triggered on September 30, 2024, we would have been required to post an additional $6.5 million of collateral assets, which are either cash or U.S. Treasury instruments, to the counterparties. Counterparty Credit Risk We enter into foreign exchange, certain commodity and interest rate derivatives, primarily with a diversified group of highly rated counterparties. We continually monitor our positions and the credit ratings of the counterparties involved and limit the amount of credit exposure to any one party. While we may be exposed to potential losses due to the credit risk of non-performance by these counterparties, material losses are not anticipated. We closely monitor the credit risk associated with our counterparties and customers and to date have not experienced material losses.

Fair Value Measurements

Fair Value Measurements	9 Months Ended
Fair Value Measurements	Sep. 30, 2024
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements Following is a summary of the valuation techniques for assets and liabilities recorded in our Condensed Consolidated Balance Sheets at fair value on a recurring basis: Foreign Currency Derivatives - The foreign currency derivative instruments that we currently use are forward contracts, which typically expire within 18 months. Most of the valuations are adjusted by a forward yield curve or interest rates. In such cases, these derivative contracts are classified within Level 2. Some valuations are based on exchange-quoted prices, which are classified as Level 1. Changes in the fair market values of these contracts are recognized in the Condensed Consolidated Financial Statements as a component of cost of goods sold in our Corporate, Eliminations and Other segment, or foreign currency transaction (gain) loss. As of September 30, 2024 and December 31, 2023, the gross asset position of our foreign currency derivative instruments was $6.1 million and $36.4 million, respectively, and the gross liability position of our foreign currency derivative instruments was $5.8 million and $8.0 million, respectively. Commodity Derivatives - The commodity contracts primarily relate to natural gas. The commodity derivative instruments that we currently use are forward purchase contracts and swaps. The natural gas contracts settle using NYMEX futures or AECO price indexes, which represent fair value at any given time. The contracts’ maturities and settlements are scheduled for future months and settlements are scheduled to coincide with anticipated gas purchases during those future periods. Quoted market prices from NYMEX and AECO are used to determine the fair value of these instruments. These market prices are adjusted by a forward yield curve and are classified within Level 2. Changes in the fair market values of these contracts are recognized in the Condensed Consolidated Financial Statements as a component of cost of goods sold in our Corporate, Eliminations and Other segment. The gross asset position of our commodity derivative instruments was zero as of September 30, 2024 and December 31, 2023, and the gross liability position of our commodity instruments was $3.8 million and $9.2 million as of September 30, 2024 and December 31, 2023, respectively. Interest Rate Derivatives - We manage interest expense through interest rate contracts to convert a portion of our fixed-rate debt into floating-rate debt. From time to time, we also enter into interest rate swap agreements to hedge our exposure to changes in future interest rates related to anticipated debt issuances. Valuations are based on external pricing sources and are classified as Level 2. Changes in the fair market values of these contracts are recognized in the Condensed Consolidated Financial Statements as a component of interest expense. We did not hold any interest rate derivative positions as of September 30, 2024. Financial Instruments The carrying amounts and estimated fair values of our financial instruments are as follows: September 30, 2024 December 31, 2023 Carrying Amount Fair Value Carrying Amount Fair Value Cash and cash equivalents $ 301.6 $ 301.6 $ 348.8 $ 348.8 Accounts receivable 1,031.6 1,031.6 1,269.2 1,269.2 Accounts payable 1,178.1 1,178.1 1,166.9 1,166.9 Structured accounts payable arrangements 402.3 402.3 399.9 399.9 Short-term debt 751.7 751.7 399.7 399.7 Long-term debt, including current portion 3,312.7 3,357.3 3,361.7 3,364.1

Related Party Transactions

Related Party Transactions	9 Months Ended
Related Party Transactions	Sep. 30, 2024
Related Party Transactions [Abstract]
Related Party Transactions Disclosure	Related Party Transactions We enter into transactions and agreements with certain of our non-consolidated companies and other related parties from time to time. As of September 30, 2024 and December 31, 2023, the net amount due to our non-consolidated companies totaled $1.0 million and $0.8 million, respectively. The Condensed Consolidated Statements of Earnings included the following transactions with our non-consolidated companies: Three Months Ended September 30, Nine Months Ended September 30, 2024 2023 2024 2023 Transactions with related parties included in net sales (a) $ 223.8 $ 218.5 $ 694.4 $ 979.0 Transactions with related parties included in cost of goods sold (b) 306.8 257.7 869.5 1,122.9 ______________________________ (a) Amounts included in net sales primarily relate to sales from our Potash segment to Canpotex. (b) Amounts included in cost of goods sold primarily relate to purchases from Canpotex and MWSPC by our Mosaic Fertilizantes segment and India and China distribution businesses. As part of the MWSPC joint venture, we market approximately 25% of MWSPC production. Marketing fees of approximately $3.3 million and $12.3 million and $3.6 million and $12.9 million, are included in revenue for the three and nine months ended September 30, 2024 and 2023, respectively.

Contingencies

Contingencies	9 Months Ended
Contingencies	Sep. 30, 2024
Commitments and Contingencies Disclosure [Abstract]
Contingencies	Contingencies We have described below material judicial and administrative proceedings to which we are subject. Environmental Matters We have contingent environmental liabilities that arise principally from three sources: (i) facilities currently or formerly owned by our subsidiaries or their predecessors; (ii) facilities adjacent to currently or formerly owned facilities; and (iii) third-party Superfund or state equivalent sites. At facilities currently or formerly owned by our subsidiaries or their predecessors, the historical use and handling of regulated chemical substances, crop and animal nutrients and additives and by-product or process tailings have resulted in soil, surface water and/or groundwater contamination. Spills or other releases of regulated substances, subsidence from mining operations and other incidents arising out of operations, including accidents, have occurred previously at these facilities, and potentially could occur in the future, possibly requiring us to undertake or fund cleanup or result in monetary damage awards, fines, penalties, other liabilities, injunctions or other court or administrative rulings. In some instances, pursuant to consent orders or agreements with governmental agencies, we are undertaking certain remedial actions or investigations to determine whether remedial action may be required to address contamination. At other locations, we have entered into consent orders or agreements with appropriate governmental agencies to perform required remedial activities that will address identified site conditions. Taking into consideration established accruals of approximately $225.7 million and $203.2 million as of September 30, 2024 and December 31, 2023, respectively, expenditures for these known conditions currently are not expected, individually or in the aggregate, to have a material effect on our business or financial condition. However, material expenditures could be required in the future to remediate the contamination at known sites or at other current or former sites or as a result of other environmental, health and safety matters. Below is a discussion of the more significant environmental matters. New Wales Phase II East Stack. In April 2022, we confirmed the presence of a cavity in and liner tear beneath the southern part of the active phosphogypsum stack at the Company’s New Wales facility in Florida. This resulted in process water draining beneath the stack. The circumstances were reported to the FDEP and the EPA. Phase I of the repairs, consisting of stabilizing the cavity by depositing low pressure grout into it, began in July 2022 and now is complete. Phase II work, which consists of injecting high pressure grout beneath the stack to restore the geological confining layer beneath it, began in early in 2023 and the work is now complete. As of September 30, 2024, we have a reserve of $20.1 million for estimated water management and other costs associated with this event. We are unable to estimate at this time potential future additional financial impacts or a range of loss, if any. New Wales Phase II West Stack. In October 2023, we observed a series of seismic acoustic emissions and changes to piezometric water levels in a part of the Phase II West phosphogypsum stack at the New Wales, Florida facility. These observations may be an indication of a breach in the stack liner system and were reported to the FDEP and EPA. We have begun repairs; stabilization grouting is now complete, and high-pressure grouting began in October 2024. The area of the stack is not in use for either process water storage or additional gypsum placement. It lies within a zone of capture of a recovery groundwater well, which is operating as intended. No offsite impacts are known or expected. As of September 30, 2024, we have a reserve of $99.6 million for estimated repairs. We are unable to estimate at this time potential future additional financial impacts or a range of loss, if any, due to the ongoing evaluation. EPA RCRA Initiative. We have certain financial assurance and other obligations under consent decrees and a separate financial assurance arrangement relating to our facilities in Florida and Louisiana. These obligations are discussed in Note 14 of our Notes to Consolidated Financial Statements in our 10-K Report. Other Environmental Matters. Superfund and equivalent state statutes impose liability without regard to fault or to the legality of a party’s conduct on certain categories of persons who are considered to have contributed to the release of “hazardous substances” into the environment. Under Superfund, or its various state analogues, one party may, under certain circumstances, be required to bear more than its proportionate share of cleanup costs at a site where it has liability if payments cannot be obtained from other responsible parties. Currently, certain of our subsidiaries are involved or concluding involvement at several Superfund or equivalent state sites. Our remedial liability from these sites, alone or in the aggregate, currently is not expected to have a material effect on our business or financial condition. As more information is obtained regarding these sites and the potentially responsible parties involved, this expectation could change. We believe that, pursuant to several indemnification agreements, our subsidiaries are entitled to at least partial, and in many instances complete, indemnification for the costs that may be expended by us or our subsidiaries to remedy environmental issues at certain facilities. These agreements address issues that resulted from activities occurring prior to our acquisition of facilities or businesses from parties including, but not limited to: ARCO (BP); Beatrice Fund for Environmental Liabilities; Conoco; Conserv; Estech, Inc.; Kaiser Aluminum & Chemical Corporation; Kerr-McGee Inc.; PPG Industries, Inc.; The Williams Companies; CF; and certain other private parties. Our subsidiaries have already received and anticipate receiving amounts pursuant to the indemnification agreements for certain of their expenses incurred to date as well as future anticipated expenditures. We record potential indemnifications as an offset to the established accruals when they are realizable or realized. The failure of an indemnitor to fulfill its obligations could result in future costs that could be material. Louisiana Parishes Coastal Zone Cases Several Louisiana parishes and the City of New Orleans have filed lawsuits against hundreds of oil and gas companies seeking regulatory, restoration and compensatory damages in connection with historical oil, gas and sulfur mining and transportation operations in the coastal zone of Louisiana. Mosaic is the corporate successor to certain companies which performed these types of operations in the coastal zone of Louisiana. Mosaic has been named in two of the lawsuits filed to date. In addition, in several other cases, historical oil, gas and sulfur operations which may have been related to Mosaic’s corporate predecessors have been identified in the complaints. Based upon information known to date, Mosaic has contractual indemnification rights against third parties for any loss or liability arising out of these claims pursuant to indemnification agreements entered into by Mosaic’s corporate predecessor(s) with third parties. There may also be insurance contracts which may respond to some or all of the claims. However, the financial ability of the third-party indemnitors, the extent of potential insurance coverage and the extent of potential liability from these claims is currently unknown. A memorandum of understanding has been executed by the State of Louisiana and the plaintiff parishes that filed suit against Mosaic and its corporate predecessors on one hand, and Mosaic Global Holdings Inc. and its third-party indemnitors on the other hand (“ MOU ”) to resolve all claims among the parties. The initial funding obligations under the MOU have been made in accordance with the provisions of the MOU and dismissals with prejudice have been filed in all cases where final jurisdiction is established. Two cases remain subject to jurisdictional appeals; however, those cases shall be dismissed with prejudice upon a final decision confirming jurisdiction. Terms of the MOU include the possibility of additional fixed obligations pending legislative acts, however to the extent those fixed obligations include any additional funding, we expect those obligations to be undertaken by third-party indemnitors and/or insurers. Brazil Legal Contingencies Our Brazilian subsidiaries are engaged in a number of judicial and administrative proceedings regarding labor, environmental, mining and civil claims that allege aggregate damages and/or fines of approximately $641.4 million. We estimate that our probable aggregate loss with respect to these claims is approximately $91.3 million, which is included in our accrued liabilities in our Condensed Consolidated Balance Sheets at September 30, 2024. Approximately $439.8 million of the foregoing maximum potential loss relates to labor claims, of which approximately $71.9 million is included in accrued liabilities in our Condensed Consolidated Balance Sheets at September 30, 2024. Based on Brazil legislation and the current status of similar labor cases involving unrelated companies, we believe we have recorded adequate loss contingency reserves sufficient to cover our estimate of probable losses. If the status of similar cases involving unrelated companies were to adversely change in the future, our maximum exposure could increase and additional accruals could be required. Brazil Tax Contingencies Our Brazilian subsidiaries are engaged in a number of judicial and administrative proceedings relating to various non-income tax matters. We estimate that our maximum potential liability with respect to these matters is approximately $672.3 million, of which $229.2 million is subject to an indemnification agreement entered into with Vale S.A in connection with the Acquisition. Approximately $352.7 million of the maximum potential liability relates to a Brazilian federal value added tax, PIS and COFINS and tax credit cases, while the majority of the remaining amount relates to various other non-income tax cases. The maximum potential liability can increase with new audits from Brazilian tax authorities. Based on Brazil tax legislation and the current status of similar tax cases involving unrelated taxpayers, we believe we have recorded adequate loss contingency reserves sufficient to cover our estimate of probable losses, which are immaterial. If the status of similar tax cases involving unrelated taxpayer changes in the future, additional accruals could be required. Other Claims We also have certain other contingent liabilities with respect to judicial, administrative and arbitration proceedings and claims of third parties, including tax matters, arising in the ordinary course of business. We do not believe that any of these contingent liabilities will have a material adverse impact on our business or financial condition, results of operations and cash flows.

Business Segments

Business Segments	9 Months Ended
Business Segments	Sep. 30, 2024
Segment Reporting [Abstract]
Segment Reporting Disclosure	Business Segments The reportable segments are determined by management based upon factors such as products and services, production processes, technologies, market dynamics and for which segment financial information is available for our chief operating decision maker. We evaluate performance based on the operating earnings of the respective business segments, which includes certain allocations of corporate selling, general and administrative expenses. The segment results may not represent the actual results that would be expected if they were independent, stand-alone businesses. Intersegment eliminations, including profit on intersegment sales, mark-to-market gains/losses on derivatives, debt expenses and the results of the China and India distribution businesses are included within Corporate, Eliminations and Other. For a description of our business segments, see Note 1 to the Condensed Consolidated Financial Statements. Segment information for the three and nine months ended September 30, 2024 and 2023 was as follows: Phosphate Potash Mosaic Fertilizantes Corporate, Eliminations and Other (a) Total Three months ended September 30, 2024 Net sales to external customers $ 776.7 $ 521.7 $ 1,399.2 $ 113.3 $ 2,810.9 Intersegment net sales 228.6 4.0 — (232.6) — Net sales 1,005.3 525.7 1,399.2 (119.3) 2,810.9 Gross margin 142.3 121.9 127.9 24.7 416.8 Canadian resource taxes — 44.5 — — 44.5 Gross margin (excluding Canadian resource taxes) 142.3 166.4 127.9 24.7 461.3 Operating earnings (loss) 7.6 109.3 56.1 (57.6) 115.4 Capital expenditures 126.5 61.2 51.6 1.5 240.8 Depreciation, depletion and amortization expense 117.7 68.4 39.9 11.9 237.9 Three months ended September 30, 2023 Net sales to external customers $ 898.8 $ 713.4 $ 1,730.6 $ 205.5 $ 3,548.3 Intersegment net sales 87.6 6.5 — (94.1) — Net sales 986.4 719.9 1,730.6 111.4 3,548.3 Gross margin 87.5 210.3 106.1 5.7 409.6 Canadian resource taxes — 85.6 — — 85.6 Gross margin (excluding Canadian resource taxes) 87.5 295.9 106.1 5.7 495.2 Operating earnings (loss) (57.5) 200.0 77.3 (74.0) 145.8 Capital expenditures 157.3 84.5 117.7 52.2 411.7 Depreciation, depletion and amortization expense 116.5 65.8 53.9 2.5 238.7 Nine months ended September 30, 2024 Net sales to external customers $ 2,788.9 $ 1,811.5 $ 3,334.5 $ 372.0 $ 8,306.9 Intersegment net sales 564.6 20.4 — (585.0) — Net sales 3,353.5 1,831.9 3,334.5 (213.0) 8,306.9 Gross margin 455.4 520.0 304.9 (70.3) 1,210.0 Canadian resource taxes — 175.8 — — 175.8 Gross margin (excluding Canadian resource taxes) 455.4 695.8 304.9 (70.3) 1,385.8 Operating earnings (loss) 180.8 481.7 159.3 (300.2) 521.6 Capital expenditures 501.1 232.9 179.8 43.9 957.7 Depreciation, depletion and amortization expense 362.5 244.0 120.0 16.9 743.4 Nine months ended September 30, 2023 Net sales to external customers $ 2,951.7 $ 2,449.7 $ 4,492.7 $ 652.5 $ 10,546.6 Intersegment net sales 702.5 25.5 — (728.0) — Net sales 3,654.2 2,475.2 4,492.7 (75.5) 10,546.6 Gross margin 563.0 959.7 117.8 10.6 1,651.1 Canadian resource taxes — 301.4 — — 301.4 Gross margin (excluding Canadian resource taxes) 563.0 1,261.1 117.8 10.6 1,952.5 Operating earnings (loss) 354.9 929.3 25.1 (249.7) 1,059.6 Capital expenditures 418.3 251.5 267.6 106.1 1,043.5 Depreciation, depletion and amortization expense 362.1 209.8 123.3 7.7 702.9 Total Assets As of September 30, 2024 $ 11,214.4 $ 7,467.5 $ 5,202.6 $ (592.8) $ 23,291.7 As of December 31, 2023 10,295.9 8,971.9 5,256.3 (1,491.3) 23,032.8 ______________________________ (a) The “Corporate, Eliminations and Other” category includes the results of our ancillary distribution operations in India and China. For the three and nine months ended September 30, 2024, distribution operations in India and China collectively had revenue of $111.1 million and $361.2 million, respectively, and gross margin of $15.9 million and $25.9 million, respectively. For the three and nine months ended September 30, 2023, distribution operations in India and China collectively had revenue of $204.1 million and $642.6 million, respectively, and gross margin of $12.4 million and $(42.7) million, respectively. Financial information relating to our operations by geographic area is as follows: Three Months Ended Nine Months Ended (in millions) 2024 2023 2024 2023 Net sales (a) : Brazil $ 1,350.8 $ 1,659.3 $ 3,241.5 $ 4,327.2 Canpotex (b) 217.3 209.9 660.1 942.0 China 149.7 123.8 386.5 358.6 Canada 68.2 58.8 357.4 274.7 Paraguay 58.1 80.2 140.0 177.0 Japan 33.7 33.1 103.1 131.1 India 31.3 80.3 50.5 291.2 Argentina 28.4 27.2 69.9 70.3 Colombia 23.8 16.8 82.4 79.2 Australia 21.1 20.4 38.0 47.8 Peru 20.2 30.2 39.2 52.2 Mexico 9.8 27.7 39.4 118.8 Honduras 7.7 4.9 21.4 25.2 Dominican Republic 6.2 2.0 10.2 13.1 Other 30.9 18.8 54.6 54.7 Total international countries 2,057.2 2,393.4 5,294.2 6,963.1 United States 753.7 1,154.9 3,012.7 3,583.5 Consolidated $ 2,810.9 $ 3,548.3 $ 8,306.9 $ 10,546.6 ______________________________ (a) Revenues are attributed to countries based on location of customer. (b) Canpotex is the export association of two Saskatchewan potash producers. Canpotex annualized sales to the ultimate third-party customers are approximately: 35% to customers based in Brazil, 12% to customers based in China, 9% to customers in Bangladesh, 7% to customers based in India, and 37% to customers based in the rest of the world. Net sales by product type are as follows: Three Months Ended Nine Months Ended (in millions) 2024 2023 2024 2023 Sales by product type: Phosphate Crop Nutrients $ 810.4 $ 876.3 $ 2,201.0 $ 2,601.2 Potash Crop Nutrients 656.8 1,087.1 2,171.2 3,107.4 Crop Nutrient Blends 361.9 556.4 1,022.0 1,633.0 Performance Products (a) 620.5 624.5 1,602.0 1,855.4 Phosphate Rock 28.0 36.9 106.5 125.9 Other (b) 333.3 367.1 1,204.2 1,223.7 $ 2,810.9 $ 3,548.3 $ 8,306.9 $ 10,546.6 ____________________________________________ (a) Includes sales of MicroEssentials ® , K-Mag ® and Aspire ® . (b) Includes sales of industrial potash, feed products, nitrogen and other products.

Share Repurchases

Share Repurchases	9 Months Ended
Share Repurchases	Sep. 30, 2024
Share Repurchases [Abstract]
Stockholders' Equity Note Disclosure	Share Repurchases In 2022, our Board of Directors approved two share repurchase programs for a total of $3.0 billion. Our repurchase programs allow the Company to repurchase shares of our Common Stock through open market purchases, accelerated share repurchase arrangements, privately negotiated transactions or otherwise, and have no set expiration date. During the three and nine months ended September 30, 2024, we repurchased 1,772,144 and 7,006,632 shares of Common Stock in the open market for approximately $50.0 million and $210.4 million, respectively, at an average purchase price per share of $28.21 and $30.03, respectively. On February 24, 2023, pursuant to existing stock repurchase authorizations, we entered into an accelerated share repurchase agreement (the “ 2023 ASR Agreement ”) with a third-party financial institution to repurchase $300 million of our Common Stock. At inception, we paid the financial institution $300 million and took initial delivery of 4,659,290 shares of our Common Stock, representing an estimated 80% of the total shares expected to be delivered under the 2023 ASR Agreement. In March 2023, the transaction was completed and we received an additional 965,284 shares of Common Stock. In total, 5,624,574 shares were delivered under the 2023 ASR Agreement, at an average purchase price of $53.34 per share. During the three and nine months ended September 30, 2023, we repurchased 3,948,783 and 12,639,719 shares of Common Stock in the open market for approximately $150.0 million and $598.0 million, respectively, at an average purchase price of $37.99 and $47.31 per share, respectively. This includes 5,624,574 shares purchased under the 2023 ASR Agreement. The extent to which we repurchase our shares and the timing of any such repurchases depend on a number of factors, including market and business conditions, the price of our shares, our ability to access capital resources, our liquidity and corporate, regulatory and other considerations.

Investments, Equity Method and

Investments, Equity Method and Joint Ventures	9 Months Ended
Investments, Equity Method and Joint Ventures	Sep. 30, 2024
Equity Method Investments and Joint Ventures [Abstract]
Investment in Ma'aden Wa'ad al Shamal Phosphate Company	Investment in Ma’aden Wa’ad al Shamal Phosphate Company On April 29, 2024, Saudi Arabian Mining Company (“ Ma’aden

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	9 Months Ended
Summary of Significant Accounting Policies (Policies)	Sep. 30, 2024
Accounting Policies [Abstract]
Basis of Consolidation	Statement Presentation and Basis of Consolidation The accompanying unaudited Condensed Consolidated Financial Statements of Mosaic have been prepared on the accrual basis of accounting and in accordance with the requirements of the Securities and Exchange Commission (“ SEC ”) for interim financial reporting. As permitted under these rules, certain footnotes and other financial information that are normally required by accounting principles generally accepted in the United States (“ GAAP ”) can be condensed or omitted. The Condensed Consolidated Financial Statements included in this document reflect, in the opinion of our management, all adjustments (consisting of only normal recurring adjustments) necessary for a fair presentation of the results for the interim periods presented. The following notes should be read in conjunction with the accounting policies and other disclosures in the Notes to the Consolidated Financial Statements included in our Annual Report on Form 10-K filed with the SEC for the year ended December 31, 2023 (the “ 10-K Report ”). Sales, expenses, cash flows, assets and liabilities can and do vary during the year as a result of seasonality and other factors. Therefore, interim results are not necessarily indicative of the results to be expected for the full fiscal year.
Accounting Estimates	Accounting Estimates Preparation of the Condensed Consolidated Financial Statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of net sales and expenses during the reporting periods. The most significant estimates made by management relate to the estimates of fair value of acquired assets and liabilities, the recoverability of non-current assets including goodwill, the useful lives and net realizable values of long-lived assets, environmental and reclamation liabilities, including asset retirement obligations (“ ARO

Other Financial Statement Data

Other Financial Statement Data (Tables)	9 Months Ended
Other Financial Statement Data (Tables)	Sep. 30, 2024
Balance Sheet Related Disclosures [Abstract]
Schedule of Other Financial Statement Data	The following provides add i tional information concerning selected balance sheet accounts: September 30, 2024 December 31, 2023 Other current assets Income and other taxes receivable $ 396.5 $ 269.3 Prepaid expenses 285.0 284.3 Other 33.5 50.2 $ 715.0 $ 603.8 Other assets Restricted cash $ 15.4 $ 3.4 MRO inventory 176.3 166.3 Marketable securities held in trust 729.6 708.6 Operating lease right-of-use assets 204.6 229.8 Indemnification asset 20.6 20.9 Long-term receivable 16.7 21.8 Cloud computing cost 177.2 138.9 Other 225.5 285.9 $ 1,565.9 $ 1,575.6 Accrued liabilities Accrued dividends $ 3.3 $ 72.3 Payroll and employee benefits 168.6 182.6 Asset retirement obligations 380.6 377.4 Customer prepayments (a) 419.5 261.8 Accrued income and other taxes 145.2 190.0 Operating lease obligation 55.6 65.3 Other 555.5 627.7 $ 1,728.3 $ 1,777.1 Other noncurrent liabilities Asset retirement obligations $ 2,169.9 $ 1,836.0 Accrued pension and postretirement benefits 111.5 168.1 Operating lease obligation 158.2 119.7 Unrecognized tax benefits 30.1 30.5 Other 385.7 274.9 $ 2,855.4 $ 2,429.2 ______________________________ (a) The timing of recognition of revenue related to our performance obligations may be different than the timing of collection of cash related to those performance obligations. Specifically, we collect prepayments from certain customers in Brazil. In addition, cash collection from Canpotex may occur prior to delivery of product to the end customer. We generally satisfy our contractual liabilities within one quarter of incurring the liability.

Earnings Per Share (Tables)

Earnings Per Share (Tables)	9 Months Ended
Earnings Per Share (Tables)	Sep. 30, 2024
Earnings Per Share [Abstract]
Schedule of earnings per share	The following is a reconciliation of the numerator and denominator for the basic and diluted EPS computations: Three Months Ended September 30, Nine Months Ended September 30, 2024 2023 2024 2023 Net income (loss) attributable to Mosaic $ 122.2 $ (4.2) $ 5.9 $ 799.6 Basic weighted average number of shares outstanding 318.4 331.5 320.6 333.0 Dilutive impact of share-based awards 1.0 — 1.0 2.1 Diluted weighted average number of shares outstanding 319.4 331.5 321.6 335.1 Basic net income (loss) per share attributable to Mosaic $ 0.38 $ (0.01) $ 0.02 $ 2.40 Diluted net income (loss) per share attributable to Mosaic $ 0.38 $ (0.01) $ 0.02 $ 2.39

Inventories (Tables)

Inventories (Tables)	9 Months Ended
Inventories (Tables)	Sep. 30, 2024
Inventory Disclosure [Abstract]
Schedule of inventories	Inventories consist of the following: September 30, 2024 December 31, 2023 Raw materials $ 125.7 $ 135.8 Work in process 991.7 964.8 Finished goods 1,563.6 1,178.0 Final price deferred (a) 71.7 61.5 Operating materials and supplies 170.3 183.1 $ 2,923.0 $ 2,523.2 ______________________________ (a)

Goodwill (Tables)

Goodwill (Tables)	9 Months Ended
Goodwill (Tables)	Sep. 30, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill	The changes in the carrying amount of goodwill, by reporting unit, are as follows: Potash Mosaic Fertilizantes Corporate, Eliminations and Other Total Balance as of December 31, 2023 $ 1,026.9 $ 99.6 $ 12.1 $ 1,138.6 Foreign currency translation (18.2) (3.1) — (21.3) Balance as of September 30, 2024 $ 1,008.7 $ 96.5 $ 12.1 $ 1,117.3 We will perform our next annual goodwill impairment analysis for each of our reporting units as of October 31, 2024. Subsequent to our 2023 annual evaluation, on December 28, 2023, Brazil enacted a tax law change that eliminates the VAT preference starting in 2024. We are assessing the full impact of this change along with outlook for the business. The current estimated fair value of our Mosaic Fertilizantes reporting unit is not significantly in excess of its carrying value. Because we currently believe that our long-term financial goals for this reporting unit will be achieved, we concluded that the goodwill assigned to this reporting unit was not impaired, but could be at risk of future impairment.

Marketable Securities Held in_2

Marketable Securities Held in Trusts (Tables)	9 Months Ended
Marketable Securities Held in Trusts (Tables)	Sep. 30, 2024
Investments, Debt and Equity Securities [Abstract]
Schedule of maturity dates for debt securities	The following table summarizes the balance by contractual maturity of the available-for-sale debt securities invested by the RCRA Trusts as of September 30, 2024. Actual maturities may differ from contractual maturities because the issuers of the securities may have the right to prepay obligations before the underlying contracts mature. September 30, 2024 Due in one year or less $ 24.1 Due after one year through five years 275.3 Due after five years through ten years 350.4 Due after ten years 61.5 Total debt securities $ 711.3
Schedule of Unrealized Loss on Investments	The following tables show gross unrealized losses and fair values of the RCRA Trusts ’ available-for-sale securities that have been in a continuous unrealized loss position for which an allowance for credit losses has not been recorded as of September 30, 2024 and December 31, 2023 : September 30, 2024 December 31, 2023 (in millions) Fair Gross Fair Gross Securities that have been in a continuous loss position for less than 12 months: Corporate debt securities $ 5.3 $ — $ 5.4 $ (0.1) Municipal bonds 25.7 (0.2) 42.3 (0.2) U.S. government bonds 6.4 — 26.4 (0.3) $ 37.4 $ (0.2) $ 74.1 $ (0.6) Securities that have been in a continuous loss position for more than 12 months: Corporate debt securities $ 86.3 $ (4.8) $ 121.5 $ (8.3) Municipal bonds 57.3 (1.9) 84.1 (3.9) $ 143.6 $ (6.7) $ 205.6 $ (12.2)
Unrealized Gain (Loss) on Investments	The estimated fair value of the investments in the RCRA Trusts as of September 30, 2024 and December 31, 2023 are as follows: September 30, 2024 Amortized Gross Gross Fair Level 1 Cash and cash equivalents $ 1.9 $ — $ — $ 1.9 Level 2 Corporate debt securities 202.6 3.6 (4.8) 201.4 Municipal bonds 208.9 2.7 (2.1) 209.5 U.S. government bonds 296.3 4.1 — 300.4 Total $ 709.7 $ 10.4 $ (6.9) $ 713.2 December 31, 2023 Amortized Gross Gross Fair Level 1 Cash and cash equivalents $ 1.0 $ — $ — $ 1.0 Level 2 Corporate debt securities 204.6 1.9 (8.4) 198.1 Municipal bonds 206.9 1.9 (4.1) 204.7 U.S. government bonds 268.6 11.5 (0.3) 279.8 Total $ 681.1 $ 15.3 $ (12.8) $ 683.6

Schedule of Change in Asset Ret

Schedule of Change in Asset Retirement Obligations (Tables)	9 Months Ended
Schedule of Change in Asset Retirement Obligations (Tables)	Sep. 30, 2024
Asset Retirement Obligation Disclosure [Abstract]
Schedule of Change in Asset Retirement Obligation [Table Text Block]	A reconciliation of our AROs is as follows: (in millions) September 30, 2024 December 31, 2023 AROs, beginning of period $ 2,213.4 $ 1,905.6 Liabilities incurred 26.8 22.9 Liabilities settled (173.6) (198.5) Accretion expense 80.9 96.1 Revisions in estimated cash flows 433.8 365.1 Foreign currency translation (30.8) 22.2 AROs, end of period 2,550.5 2,213.4 Less current portion 380.6 377.4 Non-current portion of AROs $ 2,169.9 $ 1,836.0

Accounting for Derivative Ins_2

Accounting for Derivative Instruments and Hedging Activities (Tables)	9 Months Ended
	Sep. 30, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule Of Derivative Instruments Notional Amounts	The following is the total absolute notional volume associated with our outstanding derivative instruments: (in millions of Units) September 30, 2024 December 31, 2023 Derivative Instrument Derivative Category Unit of Measure Foreign currency derivatives Foreign currency US Dollars 1,634.6 2,418.7 Natural gas derivatives Commodity MMbtu 5.4 17.1

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
Fair Value Measurements (Tables)	Sep. 30, 2024
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis	The carrying amounts and estimated fair values of our financial instruments are as follows: September 30, 2024 December 31, 2023 Carrying Amount Fair Value Carrying Amount Fair Value Cash and cash equivalents $ 301.6 $ 301.6 $ 348.8 $ 348.8 Accounts receivable 1,031.6 1,031.6 1,269.2 1,269.2 Accounts payable 1,178.1 1,178.1 1,166.9 1,166.9 Structured accounts payable arrangements 402.3 402.3 399.9 399.9 Short-term debt 751.7 751.7 399.7 399.7 Long-term debt, including current portion 3,312.7 3,357.3 3,361.7 3,364.1

Related Party Transactions (Tab

Related Party Transactions (Tables)	9 Months Ended
Related Party Transactions (Tables)	Sep. 30, 2024
Related Party Transactions [Abstract]
Schedule of related party transactions	The Condensed Consolidated Statements of Earnings included the following transactions with our non-consolidated companies: Three Months Ended September 30, Nine Months Ended September 30, 2024 2023 2024 2023 Transactions with related parties included in net sales (a) $ 223.8 $ 218.5 $ 694.4 $ 979.0 Transactions with related parties included in cost of goods sold (b) 306.8 257.7 869.5 1,122.9 ______________________________ (a) Amounts included in net sales primarily relate to sales from our Potash segment to Canpotex. (b) Amounts included in cost of goods sold primarily relate to purchases from Canpotex and MWSPC by our Mosaic Fertilizantes segment and India and China distribution businesses.

Business Segments (Tables)

Business Segments (Tables) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
Business Segments (Tables) - USD ($) $ in Millions		Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Segment Reporting Information [Line Items]
Net Sales		$ 2,810.9	$ 3,548.3	$ 8,306.9	$ 10,546.6
Gross margin		416.8	409.6	1,210	1,651.1
Canadian resource taxes		44.5	85.6	175.8	301.4
Gross margin (excluding canadian resource taxes)		461.3	495.2	1,385.8	1,952.5
Operating earnings (loss)		115.4	145.8	521.6	1,059.6
Segment, Expenditure, Addition to Long-Lived Assets		240.8	411.7
Capital expenditures				957.7	1,043.5
Depreciation, depletion and amortization expense		237.9	238.7	743.4	702.9
Assets		23,291.7		$ 23,291.7		$ 23,032.8
Schedule of Segment Reporting Information				Segment information for the three and nine months ended September 30, 2024 and 2023 was as follows: Phosphate Potash Mosaic Fertilizantes Corporate, Eliminations and Other (a) Total Three months ended September 30, 2024 Net sales to external customers $ 776.7 $ 521.7 $ 1,399.2 $ 113.3 $ 2,810.9 Intersegment net sales 228.6 4.0 — (232.6) — Net sales 1,005.3 525.7 1,399.2 (119.3) 2,810.9 Gross margin 142.3 121.9 127.9 24.7 416.8 Canadian resource taxes — 44.5 — — 44.5 Gross margin (excluding Canadian resource taxes) 142.3 166.4 127.9 24.7 461.3 Operating earnings (loss) 7.6 109.3 56.1 (57.6) 115.4 Capital expenditures 126.5 61.2 51.6 1.5 240.8 Depreciation, depletion and amortization expense 117.7 68.4 39.9 11.9 237.9 Three months ended September 30, 2023 Net sales to external customers $ 898.8 $ 713.4 $ 1,730.6 $ 205.5 $ 3,548.3 Intersegment net sales 87.6 6.5 — (94.1) — Net sales 986.4 719.9 1,730.6 111.4 3,548.3 Gross margin 87.5 210.3 106.1 5.7 409.6 Canadian resource taxes — 85.6 — — 85.6 Gross margin (excluding Canadian resource taxes) 87.5 295.9 106.1 5.7 495.2 Operating earnings (loss) (57.5) 200.0 77.3 (74.0) 145.8 Capital expenditures 157.3 84.5 117.7 52.2 411.7 Depreciation, depletion and amortization expense 116.5 65.8 53.9 2.5 238.7 Nine months ended September 30, 2024 Net sales to external customers $ 2,788.9 $ 1,811.5 $ 3,334.5 $ 372.0 $ 8,306.9 Intersegment net sales 564.6 20.4 — (585.0) — Net sales 3,353.5 1,831.9 3,334.5 (213.0) 8,306.9 Gross margin 455.4 520.0 304.9 (70.3) 1,210.0 Canadian resource taxes — 175.8 — — 175.8 Gross margin (excluding Canadian resource taxes) 455.4 695.8 304.9 (70.3) 1,385.8 Operating earnings (loss) 180.8 481.7 159.3 (300.2) 521.6 Capital expenditures 501.1 232.9 179.8 43.9 957.7 Depreciation, depletion and amortization expense 362.5 244.0 120.0 16.9 743.4 Nine months ended September 30, 2023 Net sales to external customers $ 2,951.7 $ 2,449.7 $ 4,492.7 $ 652.5 $ 10,546.6 Intersegment net sales 702.5 25.5 — (728.0) — Net sales 3,654.2 2,475.2 4,492.7 (75.5) 10,546.6 Gross margin 563.0 959.7 117.8 10.6 1,651.1 Canadian resource taxes — 301.4 — — 301.4 Gross margin (excluding Canadian resource taxes) 563.0 1,261.1 117.8 10.6 1,952.5 Operating earnings (loss) 354.9 929.3 25.1 (249.7) 1,059.6 Capital expenditures 418.3 251.5 267.6 106.1 1,043.5 Depreciation, depletion and amortization expense 362.1 209.8 123.3 7.7 702.9 Total Assets As of September 30, 2024 $ 11,214.4 $ 7,467.5 $ 5,202.6 $ (592.8) $ 23,291.7 As of December 31, 2023 10,295.9 8,971.9 5,256.3 (1,491.3) 23,032.8 ______________________________ (a) The “Corporate, Eliminations and Other” category includes the results of our ancillary distribution operations in India and China. For the three and nine months ended September 30, 2024, distribution operations in India and China collectively had revenue of $111.1 million and $361.2 million, respectively, and gross margin of $15.9 million and $25.9 million, respectively. For the three and nine months ended September 30, 2023, distribution operations in India and China collectively had revenue of $204.1 million and $642.6 million, respectively, and gross margin of $12.4 million and $(42.7) million, respectively.
Revenue from External Customers by Geographic Areas [Table Text Block]				Financial information relating to our operations by geographic area is as follows: Three Months Ended Nine Months Ended (in millions) 2024 2023 2024 2023 Net sales (a) : Brazil $ 1,350.8 $ 1,659.3 $ 3,241.5 $ 4,327.2 Canpotex (b) 217.3 209.9 660.1 942.0 China 149.7 123.8 386.5 358.6 Canada 68.2 58.8 357.4 274.7 Paraguay 58.1 80.2 140.0 177.0 Japan 33.7 33.1 103.1 131.1 India 31.3 80.3 50.5 291.2 Argentina 28.4 27.2 69.9 70.3 Colombia 23.8 16.8 82.4 79.2 Australia 21.1 20.4 38.0 47.8 Peru 20.2 30.2 39.2 52.2 Mexico 9.8 27.7 39.4 118.8 Honduras 7.7 4.9 21.4 25.2 Dominican Republic 6.2 2.0 10.2 13.1 Other 30.9 18.8 54.6 54.7 Total international countries 2,057.2 2,393.4 5,294.2 6,963.1 United States 753.7 1,154.9 3,012.7 3,583.5 Consolidated $ 2,810.9 $ 3,548.3 $ 8,306.9 $ 10,546.6 ______________________________ (a) Revenues are attributed to countries based on location of customer. (b) Canpotex is the export association of two Saskatchewan potash producers. Canpotex annualized sales to the ultimate third-party customers are approximately: 35% to customers based in Brazil, 12% to customers based in China, 9% to customers in Bangladesh, 7% to customers based in India, and 37% to customers based in the rest of the world.
Sales by Product Type				Net sales by product type are as follows: Three Months Ended Nine Months Ended (in millions) 2024 2023 2024 2023 Sales by product type: Phosphate Crop Nutrients $ 810.4 $ 876.3 $ 2,201.0 $ 2,601.2 Potash Crop Nutrients 656.8 1,087.1 2,171.2 3,107.4 Crop Nutrient Blends 361.9 556.4 1,022.0 1,633.0 Performance Products (a) 620.5 624.5 1,602.0 1,855.4 Phosphate Rock 28.0 36.9 106.5 125.9 Other (b) 333.3 367.1 1,204.2 1,223.7 $ 2,810.9 $ 3,548.3 $ 8,306.9 $ 10,546.6 ____________________________________________ (a) Includes sales of MicroEssentials ® , K-Mag ® and Aspire ® . (b) Includes sales of industrial potash, feed products, nitrogen and other products.
Phosphates segment
Segment Reporting Information [Line Items]
Gross margin		142.3	87.5	$ 455.4	563
Canadian resource taxes		0	0	0	0
Gross margin (excluding canadian resource taxes)		142.3	87.5	455.4	563
Operating earnings (loss)		7.6	(57.5)	180.8	354.9
Segment, Expenditure, Addition to Long-Lived Assets		126.5	157.3
Capital expenditures				501.1	418.3
Depreciation, depletion and amortization expense		117.7	116.5	362.5	362.1
Assets		11,214.4		11,214.4		10,295.9
Potash segment
Segment Reporting Information [Line Items]
Gross margin		121.9	210.3	520	959.7
Canadian resource taxes		44.5	85.6	175.8	301.4
Gross margin (excluding canadian resource taxes)		166.4	295.9	695.8	1,261.1
Operating earnings (loss)		109.3	200	481.7	929.3
Segment, Expenditure, Addition to Long-Lived Assets		61.2	84.5
Capital expenditures				232.9	251.5
Depreciation, depletion and amortization expense		68.4	65.8	244	209.8
Assets		7,467.5		7,467.5		8,971.9
Mosaic Fertilizantes segment
Segment Reporting Information [Line Items]
Gross margin		127.9	106.1	304.9	117.8
Canadian resource taxes		0	0	0	0
Gross margin (excluding canadian resource taxes)		127.9	106.1	304.9	117.8
Operating earnings (loss)		56.1	77.3	159.3	25.1
Segment, Expenditure, Addition to Long-Lived Assets		51.6	117.7
Capital expenditures				179.8	267.6
Depreciation, depletion and amortization expense		39.9	53.9	120	123.3
Assets		5,202.6		5,202.6		5,256.3
Corporate, other and intersegment eliminations
Segment Reporting Information [Line Items]
Gross margin	[1]	24.7	5.7	(70.3)	10.6
Canadian resource taxes	[1]	0	0	0	0
Gross margin (excluding canadian resource taxes)	[1]	24.7	5.7	(70.3)	10.6
Operating earnings (loss)	[1]	(57.6)	(74)	(300.2)	(249.7)
Segment, Expenditure, Addition to Long-Lived Assets	[1]	1.5	52.2
Capital expenditures	[1]			43.9	106.1
Depreciation, depletion and amortization expense	[1]	11.9	2.5	16.9	7.7
Assets	[1]	(592.8)		(592.8)		$ (1,491.3)
Product
Segment Reporting Information [Line Items]
Net Sales	[2]	2,810.9	3,548.3	8,306.9	10,546.6
Intersegment Sales		0	0	0	0
Revenues		2,810.9	3,548.3	8,306.9	10,546.6
Product \| Phosphates segment
Segment Reporting Information [Line Items]
Net Sales		776.7	898.8	2,788.9	2,951.7
Intersegment Sales		228.6	87.6	564.6	702.5
Revenues		1,005.3	986.4	3,353.5	3,654.2
Product \| Potash segment
Segment Reporting Information [Line Items]
Net Sales		521.7	713.4	1,811.5	2,449.7
Intersegment Sales		4	6.5	20.4	25.5
Revenues		525.7	719.9	1,831.9	2,475.2
Product \| Mosaic Fertilizantes segment
Segment Reporting Information [Line Items]
Net Sales		1,399.2	1,730.6	3,334.5	4,492.7
Intersegment Sales		0	0	0	0
Revenues		1,399.2	1,730.6	3,334.5	4,492.7
Product \| Corporate, other and intersegment eliminations
Segment Reporting Information [Line Items]
Net Sales	[1]	113.3	205.5	372	652.5
Intersegment Sales	[1]	(232.6)	(94.1)	(585)	(728)
Revenues	[1]	(119.3)	111.4	(213)	(75.5)
Product \| Corporate, other and intersegment eliminations \| China and India distribution operations
Segment Reporting Information [Line Items]
Revenues		111.1	204.1	361.2	642.6
Gross margin		$ 15.9	$ 12.4	$ 25.9	$ (42.7)

[1] The “Corporate, Eliminations and Other” category includes the results of our ancillary distribution operations in India and China. For the three and nine months ended September 30, 2024, distribution operations in India and China collectively had revenue of $111.1 million and $361.2 million, respectively, and gross margin of $15.9 million and $25.9 million, respectively. For the three and nine months ended September 30, 2023, distribution operations in India and China collectively had revenue of $204.1 million and $642.6 million, respectively, and gross margin of $12.4 million and $(42.7) million, respectively. Revenues are attributed to countries based on location of customer.

Organization and Nature of Bu_2

Organization and Nature of Business (Details)	9 Months Ended
Organization and Nature of Business (Details)	Sep. 30, 2024	Jan. 08, 2018
Schedule of Equity Method Investments [Line Items]
Percent of joint venture production Mosaic expects to market	25%
MWSPC Joint Venture
Schedule of Equity Method Investments [Line Items]
Mosaic's ownership percentage	25%
Percent of joint venture production Mosaic expects to market	25%
Miski Mayo Joint Venture
Schedule of Equity Method Investments [Line Items]
Business Combination, Step Acquisition, Equity Interest in Acquiree, Percentage		75%

Other Financial Statement Dat_2

Other Financial Statement Data (Details) - USD ($) $ in Millions		Sep. 30, 2024	Dec. 31, 2023
Other current assets
Income and other taxes receivable		$ 396.5	$ 269.3
Prepaid expenses		285	284.3
Other		33.5	50.2
Total other current assets		715	603.8
Restricted Cash Equivalents, Noncurrent		15.4	3.4
Other assets
MRO inventory		176.3	166.3
Marketable securities held in trust		729.6	708.6
Operating Lease, Right-of-Use Asset		204.6	229.8
Indemnification asset		20.6	20.9
Nontrade Receivables, Noncurrent		16.7	21.8
Other		225.5	285.9
Total other assets		1,565.9	1,575.6
Dividends Payable		3.3	72.3
Accrued liabilities
Payroll and employee benefits		168.6	182.6
Asset retirement obligations		380.6	377.4
Customer Advances, Current	[1]	419.5	261.8
Contractual Obligation For Equity Method Investment		145.2	190
Operating Lease, Liability, Current		55.6	65.3
Servicing Liability		1.5	0
Other		555.5	627.7
Accrued liabilities		1,728.3	1,777.1
Other noncurrent liabilities
Asset retirement obligations		2,169.9	1,836
Operating Lease, Liability, Noncurrent		158.2	119.7
Accrued pension and postretirement benefits		111.5	168.1
Unrecognized tax benefits		30.1	30.5
Other		385.7	274.9
Total other noncurrent liabilities		2,855.4	2,429.2
Cloud computing asset		$ 177.2	$ 138.9

[1] The timing of recognition of revenue related to our performance obligations may be different than the timing of collection of cash related to those performance obligations. Specifically, we collect prepayments from certain customers in Brazil. In addition, cash collection from Canpotex may occur prior to delivery of product to the end customer. We generally satisfy our contractual liabilities within one quarter of incurring the liability.

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Earnings Per Share [Abstract]
Net income (loss) attributable to Mosaic	$ 122.2	$ (4.2)	$ 5.9	$ 799.6
Basic weighted average number of shares outstanding	318.4	331.5	320.6	333
Dilutive impact of share-based awards	1	0	1	2.1
Diluted weighted average number of shares outstanding	319.4	331.5	321.6	335.1
Basic net earnings (loss) per share attributable to Mosaic	$ 0.38	$ (0.01)	$ 0.02	$ 2.40
Diluted net earnings (loss) per share attributable to Mosaic	$ 0.38	$ (0.01)	$ 0.02	$ 2.39
Shares subject to issuance upon exercise of stock options excluded from the calculation of diluted earnings per share	1.4	0.6	0.8	0.4
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares subject to issuance upon exercise of stock options excluded from the calculation of diluted earnings per share	1.4	0.6	0.8	0.4
Debt securities
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Debt Securities, Available-for-sale, Realized Gain	$ 6.4	$ 0.1	$ 17.2	$ 9.2

Inventories (Details)

Inventories (Details) - USD ($) $ in Millions		Sep. 30, 2024	Dec. 31, 2023
Inventory Disclosure [Abstract]
Raw materials		$ 125.7	$ 135.8
Work in process		991.7	964.8
Finished goods		1,563.6	1,178
Other Inventory, Inventory at off Site Premises, Gross	[1]	71.7	61.5
Operating materials and supplies		170.3	183.1
Total Inventory		$ 2,923	$ 2,523.2

[1] Final price deferred is product that has shipped to customers, but the price has not yet been agreed upon.

Goodwill (Details)

Goodwill (Details) - USD ($) $ in Millions	9 Months Ended
Goodwill (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Goodwill [Line Items]
Goodwill, net of accumulated amortization	$ 1,138.6
Foreign currency translation	(21.3)
Goodwill, net of accumulated amortization	1,117.3
Goodwill, Gross	1,100	$ 1,100
Potash segment
Goodwill [Line Items]
Goodwill, net of accumulated amortization	1,026.9
Foreign currency translation	(18.2)
Goodwill, net of accumulated amortization	1,008.7
Mosaic Fertilizantes segment
Goodwill [Line Items]
Goodwill, net of accumulated amortization	99.6
Foreign currency translation	(3.1)
Goodwill, net of accumulated amortization	96.5
Corporate, other and intersegment eliminations
Goodwill [Line Items]
Goodwill, net of accumulated amortization	12.1
Foreign currency translation	0
Goodwill, net of accumulated amortization	$ 12.1

Marketable Securities Held in_3

Marketable Securities Held in Trusts - Maturity Dates and Realized Gain and Loss (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity
Debt Securities, Available-for-sale	$ 713.2		$ 713.2		$ 683.6
Debt securities
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Realized Loss	1.2	$ 5.7	10.4	$ 20.9
Debt Securities, Available-for-sale, Realized Gain	6.4	$ 0.1	17.2	$ 9.2
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity
Available-for-sale debt maturities due within one year, fair value	24.1		24.1
Available-for-sale debt maturities, after 1 but within 5 years, fair value	275.3		275.3
Available-for-sale debt maturities, after 5 but within 10 years, fair value	350.4		350.4
Available-for-sale debt maturities, after 10 years, fair value	61.5		61.5
Debt Securities, Available-for-sale	$ 711.3		$ 711.3

Marketable Securities Held in_4

Marketable Securities Held in Trusts (Details) $ in Millions	Sep. 30, 2024 USD ($)	Dec. 31, 2023 USD ($)	Aug. 31, 2016 USD ($)
Investments, Debt and Equity Securities [Abstract]
Amount deposited by Mosaic into the RCRA Trusts			$ 630
Number Of Decades Remaining For Trust	3
Available-for-sale Securities, Fair Value to Amortized Cost Basis
Amortized cost	$ 709.7	$ 681.1
Gross unrealized gains	10.4	15.3
Gross unrealized losses	(6.9)	(12.8)
Debt Securities, Available-for-sale	713.2	683.6
Cash and Cash Equivalents \| Level 1
Available-for-sale Securities, Fair Value to Amortized Cost Basis
Amortized cost	1.9	1
Gross unrealized gains	0	0
Gross unrealized losses	0	0
Debt Securities, Available-for-sale	1.9	1
Corporate debt securities \| Level 2
Available-for-sale Securities, Fair Value to Amortized Cost Basis
Amortized cost	202.6	204.6
Gross unrealized gains	3.6	1.9
Gross unrealized losses	(4.8)	(8.4)
Debt Securities, Available-for-sale	201.4	198.1
Municipal bonds \| Level 2
Available-for-sale Securities, Fair Value to Amortized Cost Basis
Amortized cost	208.9	206.9
Gross unrealized gains	2.7	1.9
Gross unrealized losses	(2.1)	(4.1)
Debt Securities, Available-for-sale	209.5	204.7
U.S. government bonds \| Level 2
Available-for-sale Securities, Fair Value to Amortized Cost Basis
Amortized cost	296.3	268.6
Gross unrealized gains	4.1	11.5
Gross unrealized losses	0	(0.3)
Debt Securities, Available-for-sale	300.4	$ 279.8
Debt securities
Available-for-sale Securities, Fair Value to Amortized Cost Basis
Debt Securities, Available-for-sale	$ 711.3

Marketable Securities Held in_5

Marketable Securities Held in Trusts - Continuous Loss Position (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	$ 143.6		$ 143.6		$ 205.6
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(6.7)		(6.7)		(12.2)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	37.4		37.4		74.1
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	0.2		0.2		0.6
Corporate debt securities
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	86.3		86.3		121.5
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(4.8)		(4.8)		(8.3)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	5.3		5.3		5.4
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	0		0		0.1
Municipal bonds
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	57.3		57.3		84.1
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(1.9)		(1.9)		(3.9)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	25.7		25.7		42.3
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	0.2		0.2		0.2
U.S. government bonds
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	6.4		6.4		26.4
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	0		0		$ 0.3
Debt securities
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss
Debt Securities, Available-for-sale, Realized Loss	$ 1.2	$ 5.7	$ 10.4	$ 20.9

Short-term Debt (Details)

Short-term Debt (Details) $ in Millions	3 Months Ended		9 Months Ended
Short-term Debt (Details) $ in Millions	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)
Short-term Debt [Line Items]
Structured accounts payable arrangements	$ 402.3		$ 402.3		$ 399.9
Inventory Financing Arrangement, Maximum Amount	$ 625		$ 625
Inventory Financing Arrangement, Maximum Borrowing Capacity, Percentage	0.90		0.90
Proceeds From Inventory Financing Arrangements			$ 1,605.1	$ 601.4
Servicing Liability	$ 1.5		$ 1.5		0
Remaining Average Term, Number of Days			9 days
Term Loan
Short-term Debt [Line Items]
Long-Term Debt, Gross	700		$ 700
Long-Term Debt, Current Maturities	500		$ 500
Maximum
Short-term Debt [Line Items]
Inventory Financing Arrangement, Number Of Days			180 days
Duration Commercial Paper Note Program, Number Of Days			397 days
Duration, Number of Days			180 days
Minimum
Short-term Debt [Line Items]
Duration, Number of Days			105 days
Structured Accounts Payable [Member]
Short-term Debt [Line Items]
Structured accounts payable arrangements					399.9
Receivable Purchasing Agreement [Domain]
Short-term Debt [Line Items]
Short-term Debt, Maximum Amount Outstanding During Period			$ 600
Receivable Purchasing Arrangements Sold	97	$ 115.4	324.9	1,200
Inventory Financing Arrangement
Short-term Debt [Line Items]
Proceeds From Inventory Financing Arrangements			200	$ 0
Commercial Paper
Short-term Debt [Line Items]
Commerical Paper Note Program, Maximum Amount	2,500		2,500
Commercial Paper	$ 499.4		$ 499.4		$ 399.5
Debt, Weighted Average Interest Rate	5.01%		5.01%		5.62%
Remaining Average Term, Number of Days				9 days

Asset Retirement Obligation (De

Asset Retirement Obligation (Details) $ in Millions	9 Months Ended		12 Months Ended
Asset Retirement Obligation (Details) $ in Millions	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)	Mar. 07, 2024 USD ($)	Dec. 31, 2022 USD ($)	Jul. 27, 2018 USD ($)
ARO Loss Contingencies [Line Items]
Asset Retirement Obligation, Liabilities Incurred	$ 26.8		$ 22.9
Number Of Consent Decrees	2
Asset Retirement Obligation	$ 2,550.5		2,213.4		$ 1,905.6
Surety Bonds Outstanding Delivered To EPA				$ 327.1
Asset retirement obligations	$ 2,169.9		1,836
Number Of Decades Remaining For Trust	3
Asset Retirement Obligation, Liabilities Settled	$ (173.6)		(198.5)
Accretion expense for asset retirement obligations	80.9	$ 70	96.1
Asset Retirement Obligation, Revision of Estimate	433.8		365.1
Asset Retirement Obligation, Foreign Currency Translation Gain (Loss)	(30.8)		22.2
Asset retirement obligations	380.6		377.4
Unfavorable Regulatory Action \| 2015 Consent Decrees With EPA
ARO Loss Contingencies [Line Items]
Asset retirement obligations, undiscounted			2,200
Asset Retirement Obligation			819.9
Bonnie Facility Trust [Member]
ARO Loss Contingencies [Line Items]
Assets Held-in-trust, Current						$ 21
Plant City and Bonnie Facilities
ARO Loss Contingencies [Line Items]
Asset retirement obligations	$ 389.5		$ 361.8

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Income Taxes (Details) - USD ($) $ in Millions	Sep. 30, 2024	Sep. 30, 2024	Dec. 31, 2023
Interest And Penalties [Abstract]
Change in unrecognized tax benefit		$ 1.8
Unrecognized tax benefits	$ 24	24
Unrecognized tax benefits that would impact effective tax rate	20.4	20.4
Unrecognized tax benefits, income tax penalties and interest accrued	7.7	7.7	$ 6.4
Income Tax (Expense) Benefit, Continuing Operations [Abstract]
Effective income tax rate reconciliation, other expense (benefit) reconciling items, amount	0.3
Domestic Tax Jurisdiction
Income Tax (Expense) Benefit, Continuing Operations [Abstract]
Effective income tax rate reconciliation, other expense (benefit) reconciling items, amount	$ 4.4	$ 114.9

Derivatives - Gross Assets and

Derivatives - Gross Assets and Liabilities Position (Details) $ in Millions	Sep. 30, 2024 USD ($)	Dec. 31, 2023 USD ($)
Derivative [Line Items]
Gross asset position	$ 6.1	$ 36.4
Gross liability position	9.6	17.2
Foreign Exchange Contract
Derivative [Line Items]
Derivative, Notional Amount	1,634.6	2,418.7
Foreign Exchange Contract \| Fair Value, Recurring [Member]
Derivative [Line Items]
Gross asset position	6.1	36.4
Gross liability position	$ 5.8	$ 8
Interest Rate Swap
Derivative [Line Items]
Number of Interest Rate Derivatives Held	0	0
Commodity Contract (MMbtu)
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	5.4	17.1
Commodity Contract (MMbtu) \| Fair Value, Recurring [Member]
Derivative [Line Items]
Gross asset position	$ 0	$ 0
Gross liability position	$ 3.8	$ 9.2

Credit Risk Related Contingent

Credit Risk Related Contingent Features (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Derivative, Credit Risk Related Contingent Features [Abstract]
The aggregate fair value of all derivative instruments with credit-risk-related contingent features that were in a liability position	$ 9.4	$ 15.6
Required collateral assets to be posted if the credit-risk contingent features of these underlying agreements were triggered	$ 6.5

Fair Value Measurements (Detail

Fair Value Measurements (Details) - USD ($) $ in Millions	9 Months Ended
Fair Value Measurements (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Fair Value, Assets, Liabilities and Stockholders' Equity Measured on Recurring Basis [Abstract]
Gross asset position	$ 6.1	$ 36.4
Gross liability position	$ 9.6	17.2
Fair Value, Recurring [Member] \| Foreign Exchange Contract
Fair Value, Assets, Liabilities and Stockholders' Equity Measured on Recurring Basis [Abstract]
Average maturity of foreign currency derivative instruments	18 months
Gross asset position	$ 6.1	36.4
Gross liability position	5.8	8
Fair Value, Recurring [Member] \| Commodity Contract
Fair Value, Assets, Liabilities and Stockholders' Equity Measured on Recurring Basis [Abstract]
Gross asset position	0	0
Gross liability position	$ 3.8	$ 9.2

Fair Value Financial Instrument

Fair Value Financial Instruments (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Term Loan
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-Term Debt, Current Maturities	$ 500
Carrying Amount [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	301.6	$ 348.8
Receivables, net	1,031.6	1,269.2
Accounts payable	1,178.1	1,166.9
Structured accounts payable arrangements	402.3	399.9
Short-term debt	751.7	399.7
Long-term debt, including current portion	3,312.7	3,361.7
Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	301.6	348.8
Receivables, net	1,031.6	1,269.2
Accounts payable	1,178.1	1,166.9
Structured accounts payable arrangements	402.3	399.9
Short-term debt	751.7	399.7
Long-term debt, including current portion	$ 3,357.3	$ 3,364.1

Related Party Transactions (Det

Related Party Transactions (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Related Party Transaction [Line Items]
Indemnification asset	$ 20.6		$ 20.6		$ 20.9
Percent of joint venture production Mosaic expects to market			25%
Related Party
Related Party Transaction [Line Items]
Transactions with non-consolidated companies included in cost of sales	306.8	$ 257.7	$ 869.5	$ 1,122.9
Revenues	223.8	218.5	694.4	979
Amounts due to related parties	1		1		$ 0.8
Equity Method Investee
Related Party Transaction [Line Items]
Revenues	$ 3.3	$ 3.6	$ 12.3	$ 12.9

Contingencies (Details)

Contingencies (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Applicability, Impact and Conclusion of Environmental Loss Contingencies [Abstract]
Environmental contingency accrual	$ 225.7	$ 203.2
New Wales Phase II East Stack
Loss Contingency [Abstract]
Maximum potential liabilitiy	20.1
Loss Contingencies [Line Items]
Maximum potential liabilitiy	20.1
New Wales Phase II West Stack
Loss Contingency [Abstract]
Maximum potential liabilitiy	99.6
Loss Contingencies [Line Items]
Maximum potential liabilitiy	99.6
Brazilian subsidiary judicial and administrative proceedings
Loss Contingency [Abstract]
Maximum potential liabilitiy	91.3
Loss Contingencies [Line Items]
Maximum potential liabilitiy	91.3
Brazilian subsidiary labor claims
Loss Contingency [Abstract]
Loss Contingency Accrual	71.9
Loss Contingencies [Line Items]
Loss Contingency Accrual	71.9
Maximum \| Brazilian subsidiary judicial and administrative proceedings
Loss Contingency [Abstract]
Maximum potential liabilitiy	641.4
Loss Contingencies [Line Items]
Maximum potential liabilitiy	641.4
Maximum \| Brazilian Non Income Tax Proceedings
Loss Contingency [Abstract]
Maximum potential liabilitiy	672.3
Loss Contingencies [Line Items]
Maximum potential liabilitiy	672.3
Maximum \| Brazilian Non Income Tax Proceedings \| Indemnification Agreement Vale S.A.
Loss Contingency [Abstract]
Maximum potential liabilitiy	229.2
Loss Contingencies [Line Items]
Maximum potential liabilitiy	229.2
Maximum \| Brazilian Non Income Tax Proceedings \| PIS And Cofins Cases
Loss Contingency [Abstract]
Maximum potential liabilitiy	352.7
Loss Contingencies [Line Items]
Maximum potential liabilitiy	352.7
Maximum \| Brazilian subsidiary labor claims
Loss Contingency [Abstract]
Maximum potential liabilitiy	439.8
Loss Contingencies [Line Items]
Maximum potential liabilitiy	$ 439.8

Business Segments (Details)

Business Segments (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
Business Segments (Details) - USD ($) $ in Millions		Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Disaggregation of Revenue [Line Items]
Net Sales		$ 2,810.9	$ 3,548.3	$ 8,306.9	$ 10,546.6
Gross margin		416.8	409.6	1,210	1,651.1
Corporate, other and intersegment eliminations
Disaggregation of Revenue [Line Items]
Gross margin	[1]	24.7	5.7	(70.3)	10.6
Phosphates segment
Disaggregation of Revenue [Line Items]
Gross margin		142.3	87.5	455.4	563
Product
Disaggregation of Revenue [Line Items]
Net Sales	[2]	2,810.9	3,548.3	8,306.9	10,546.6
Revenues		2,810.9	3,548.3	8,306.9	10,546.6
Product \| Corporate, other and intersegment eliminations
Disaggregation of Revenue [Line Items]
Net Sales	[1]	113.3	205.5	372	652.5
Revenues	[1]	(119.3)	111.4	(213)	(75.5)
Product \| Corporate, other and intersegment eliminations \| China and India distribution operations
Disaggregation of Revenue [Line Items]
Revenues		111.1	204.1	361.2	642.6
Gross margin		15.9	12.4	25.9	(42.7)
Product \| Phosphates segment
Disaggregation of Revenue [Line Items]
Net Sales		776.7	898.8	2,788.9	2,951.7
Revenues		1,005.3	986.4	3,353.5	3,654.2
Product \| Canada \| Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Net Sales	[2]	$ 68.2	$ 58.8	$ 357.4	$ 274.7

[1] The “Corporate, Eliminations and Other” category includes the results of our ancillary distribution operations in India and China. For the three and nine months ended September 30, 2024, distribution operations in India and China collectively had revenue of $111.1 million and $361.2 million, respectively, and gross margin of $15.9 million and $25.9 million, respectively. For the three and nine months ended September 30, 2023, distribution operations in India and China collectively had revenue of $204.1 million and $642.6 million, respectively, and gross margin of $12.4 million and $(42.7) million, respectively. Revenues are attributed to countries based on location of customer.

Disaggregation of Revenue (Deta

Disaggregation of Revenue (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
Disaggregation of Revenue (Details) - USD ($) $ in Millions		Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Disaggregation of Revenue [Line Items]
Net Sales		$ 2,810.9	$ 3,548.3	$ 8,306.9	$ 10,546.6
Potash Crop Nutrients \| Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Net Sales		656.8	1,087.1	2,171.2	3,107.4
Phosphate Crop Nutrients \| Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Net Sales		810.4	876.3	2,201	2,601.2
Crop Nutrient Blends \| Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Net Sales		361.9	556.4	1,022	1,633
Specialty Products \| Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Net Sales	[1]	620.5	624.5	1,602	1,855.4
Phosphate Rock \| Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Net Sales		28	36.9	106.5	125.9
Other Product Types \| Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Net Sales	[2]	333.3	367.1	1,204.2	1,223.7
Product
Disaggregation of Revenue [Line Items]
Net Sales	[3]	2,810.9	3,548.3	$ 8,306.9	10,546.6
Brazil
Disaggregation of Revenue [Line Items]
Canpotexsalesvolumesbygeographypercentage				35%
Brazil \| Product \| Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Net Sales	[3]	1,350.8	1,659.3	$ 3,241.5	4,327.2
Canpotex [Member] \| Product \| Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Net Sales	[3],[4]	217.3	209.9	660.1	942
Canada \| Product \| Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Net Sales	[3]	68.2	58.8	$ 357.4	274.7
India
Disaggregation of Revenue [Line Items]
Canpotexsalesvolumesbygeographypercentage				7%
India \| Product \| Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Net Sales	[3]	31.3	80.3	$ 50.5	291.2
China
Disaggregation of Revenue [Line Items]
Canpotexsalesvolumesbygeographypercentage				12%
China \| Product \| Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Net Sales	[3]	149.7	123.8	$ 386.5	358.6
Australia \| Product \| Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Net Sales	[3]	21.1	20.4	38	47.8
Mexico \| Product \| Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Net Sales	[3]	9.8	27.7	39.4	118.8
Colombia \| Product \| Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Net Sales	[3]	23.8	16.8	82.4	79.2
Paraguay \| Product \| Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Net Sales	[3]	58.1	80.2	140	177
Japan \| Product \| Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Net Sales	[3]	33.7	33.1	103.1	131.1
Argentina \| Product \| Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Net Sales	[3]	28.4	27.2	69.9	70.3
Honduras \| Product \| Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Net Sales	[3]	7.7	4.9	$ 21.4	25.2
Other Foreign
Disaggregation of Revenue [Line Items]
Canpotexsalesvolumesbygeographypercentage				37%
Other Foreign \| Product \| Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Net Sales	[3]	30.9	18.8	$ 54.6	54.7
Total Foreign \| Product \| Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Net Sales	[3]	2,057.2	2,393.4	5,294.2	6,963.1
United States \| Product \| Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Net Sales	[3]	753.7	1,154.9	3,012.7	3,583.5
Peru \| Product \| Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Net Sales	[3]	20.2	30.2	$ 39.2	52.2
BANGLADESH
Disaggregation of Revenue [Line Items]
Canpotexsalesvolumesbygeographypercentage				9%
DOMINICAN REPUBLIC \| Product \| Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Net Sales	[3]	$ 6.2	$ 2	$ 10.2	$ 13.1

[1] Includes sales of MicroEssentials ® , K-Mag ® and Aspire ® . Revenues are attributed to countries based on location of customer. Canpotex is the export association of two Saskatchewan potash producers. Canpotex annualized sales to the ultimate third-party customers are approximately: 35% to customers based in Brazil, 12% to customers based in China, 9% to customers in Bangladesh, 7% to customers based in India, and 37% to customers based in the rest of the world.

Share Repurchases (Details)

Share Repurchases (Details) $ / shares in Units, $ in Millions	1 Months Ended	3 Months Ended		9 Months Ended
	Mar. 31, 2023 shares	Sep. 30, 2024 USD ($) $ / shares shares	Sep. 30, 2023 USD ($) $ / shares shares	Sep. 30, 2024 USD ($) $ / shares shares	Sep. 30, 2023 USD ($) $ / shares shares
Share Repurchases [Line Items]
Stock Repurchased and Retired During Period, Value \| $		$ 50.5		$ 212.3
Stock Repurchased and Retired During Period, Shares \| shares		1,772,144	3,948,783	7,006,632	12,639,719
Accelerated Share Repurchases, Final Price Paid Per Share \| $ / shares				$ 53.34
Treasury Stock, Shares, Acquired \| shares	965,284			4,659,290
Percent of total shares expected to be delivered		0.80		0.80
Treasury Stock Acquired, Average Cost Per Share \| $ / shares		$ 28.21	$ 37.99	$ 30.03	$ 47.31
Share Repurchase Program 2022
Share Repurchases [Line Items]
Stock Repurchase Program, Authorized Amount \| $		$ 3,000		$ 3,000
Accelerated Share Repurchase Agreement [Member]
Share Repurchases [Line Items]
Treasury Stock, Shares, Acquired \| shares					5,624,574
2021 and 2022 Repurchase Program
Share Repurchases [Line Items]
Stock Repurchased and Retired During Period, Value \| $		50	$ 150	210.4	$ 598
Accelerated Share Repurchase Agreement 2023
Share Repurchases [Line Items]
Accelerated Share Repurchases, Settlement (Payment) or Receipt \| $		$ 300		$ 300
Treasury Stock, Shares, Acquired \| shares				5,624,574

Investments, Equity Method an_2

Investments, Equity Method and Joint Ventures (Details) - USD ($) $ in Millions	Sep. 30, 2024	Apr. 29, 2024
Schedule of Equity Method Investments [Line Items]
Share Repurchase and Subscription Agreement, Authorized Amount		$ 1,500
MWSPC Joint Venture
Schedule of Equity Method Investments [Line Items]
Mosaic's ownership percentage	25%
Share Repurchase and Subscription Agreement		111,012,433