Retirement Benefits - Fair Value of Plan Assets (Details) - USD ($) | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan Percent Of Employer And Related Party Securities Included In Plan Assets Maximum | 1.00% | | |
U.S. Plans | Pension Plan | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Expected long-term rate of return on assets | 6.00% | | |
Defined Benefit Plan Fair Value Of Plan Assets Dividends And Interest Receivable | $ 317,000,000 | $ 322,000,000 | |
Defined Benefit Plan, Plan Assets, Amount | 48,355,000,000 | 44,253,000,000 | $ 39,774,000,000 |
U.S. Plans | Pension Plan | Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 10,995,000,000 | 9,737,000,000 | |
U.S. Plans | Pension Plan | Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 31,007,000,000 | 28,461,000,000 | |
U.S. Plans | Pension Plan | Level 3 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 16,000,000 | 17,000,000 | |
U.S. Plans | Pension Plan | Fair Value Measured at Net Asset Value Per Share | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | $ 6,337,000,000 | 6,038,000,000 | |
U.S. Plans | Pension Plan | Fixed Income Funds | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage | 80.00% | | |
U.S. Plans | Pension Plan | Equity | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | $ 3,547,000,000 | 2,543,000,000 | |
U.S. Plans | Pension Plan | Equity | Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 3,507,000,000 | 2,513,000,000 | |
U.S. Plans | Pension Plan | Equity | Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 38,000,000 | 29,000,000 | |
U.S. Plans | Pension Plan | Equity | Level 3 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 2,000,000 | 1,000,000 | |
U.S. Plans | Pension Plan | Equity | Fair Value Measured at Net Asset Value Per Share | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
U.S. Plans | Pension Plan | U.S. companies | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 2,181,000,000 | 1,562,000,000 | |
U.S. Plans | Pension Plan | U.S. companies | Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 2,161,000,000 | 1,542,000,000 | |
U.S. Plans | Pension Plan | U.S. companies | Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 20,000,000 | 20,000,000 | |
U.S. Plans | Pension Plan | U.S. companies | Level 3 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
U.S. Plans | Pension Plan | U.S. companies | Fair Value Measured at Net Asset Value Per Share | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
U.S. Plans | Pension Plan | International companies | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 1,366,000,000 | 981,000,000 | |
U.S. Plans | Pension Plan | International companies | Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 1,346,000,000 | 971,000,000 | |
U.S. Plans | Pension Plan | International companies | Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 18,000,000 | 9,000,000 | |
U.S. Plans | Pension Plan | International companies | Level 3 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 2,000,000 | 1,000,000 | |
U.S. Plans | Pension Plan | International companies | Fair Value Measured at Net Asset Value Per Share | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
U.S. Plans | Pension Plan | Fixed Income | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 40,227,000,000 | 37,404,000,000 | |
U.S. Plans | Pension Plan | Fixed Income | Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 9,244,000,000 | 8,956,000,000 | |
U.S. Plans | Pension Plan | Fixed Income | Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 30,969,000,000 | 28,432,000,000 | |
U.S. Plans | Pension Plan | Fixed Income | Level 3 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 14,000,000 | 16,000,000 | |
U.S. Plans | Pension Plan | Fixed Income | Fair Value Measured at Net Asset Value Per Share | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
U.S. Plans | Pension Plan | U.S. government | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 11,420,000,000 | 11,788,000,000 | |
U.S. Plans | Pension Plan | U.S. government | Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 9,243,000,000 | 8,965,000,000 | |
U.S. Plans | Pension Plan | U.S. government | Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 2,177,000,000 | 2,823,000,000 | |
U.S. Plans | Pension Plan | U.S. government | Level 3 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
U.S. Plans | Pension Plan | U.S. government | Fair Value Measured at Net Asset Value Per Share | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
U.S. Plans | Pension Plan | Non-U.S. government | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 1,217,000,000 | 1,337,000,000 | |
U.S. Plans | Pension Plan | Non-U.S. government | Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
U.S. Plans | Pension Plan | Non-U.S. government | Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 1,203,000,000 | 1,321,000,000 | |
U.S. Plans | Pension Plan | Non-U.S. government | Level 3 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 14,000,000 | 16,000,000 | |
U.S. Plans | Pension Plan | Non-U.S. government | Fair Value Measured at Net Asset Value Per Share | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
U.S. Plans | Pension Plan | Corporate bonds | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 26,983,000,000 | 23,717,000,000 | |
U.S. Plans | Pension Plan | Corporate bonds | Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
U.S. Plans | Pension Plan | Corporate bonds | Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 26,983,000,000 | 23,717,000,000 | |
U.S. Plans | Pension Plan | Corporate bonds | Level 3 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
U.S. Plans | Pension Plan | Corporate bonds | Fair Value Measured at Net Asset Value Per Share | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
U.S. Plans | Pension Plan | Mortgage/other asset-backed | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 512,000,000 | 527,000,000 | |
U.S. Plans | Pension Plan | Mortgage/other asset-backed | Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
U.S. Plans | Pension Plan | Mortgage/other asset-backed | Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 512,000,000 | 527,000,000 | |
U.S. Plans | Pension Plan | Mortgage/other asset-backed | Level 3 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
U.S. Plans | Pension Plan | Mortgage/other asset-backed | Fair Value Measured at Net Asset Value Per Share | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
U.S. Plans | Pension Plan | Commingled funds | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 189,000,000 | 191,000,000 | |
U.S. Plans | Pension Plan | Commingled funds | Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
U.S. Plans | Pension Plan | Commingled funds | Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 189,000,000 | 191,000,000 | |
U.S. Plans | Pension Plan | Commingled funds | Level 3 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
U.S. Plans | Pension Plan | Commingled funds | Fair Value Measured at Net Asset Value Per Share | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
U.S. Plans | Pension Plan | Fixed Income Funds Net Derivative Financial Instruments | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | (94,000,000) | (156,000,000) | |
U.S. Plans | Pension Plan | Fixed Income Funds Net Derivative Financial Instruments | Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 1,000,000 | (9,000,000) | |
U.S. Plans | Pension Plan | Fixed Income Funds Net Derivative Financial Instruments | Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | (95,000,000) | (147,000,000) | |
U.S. Plans | Pension Plan | Fixed Income Funds Net Derivative Financial Instruments | Level 3 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
U.S. Plans | Pension Plan | Fixed Income Funds Net Derivative Financial Instruments | Fair Value Measured at Net Asset Value Per Share | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | $ 0 | 0 | |
U.S. Plans | Pension Plan | Growth Assets | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage | 20.00% | | |
U.S. Plans | Pension Plan | Alternatives | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | $ 6,337,000,000 | 6,038,000,000 | |
U.S. Plans | Pension Plan | Alternatives | Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
U.S. Plans | Pension Plan | Alternatives | Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
U.S. Plans | Pension Plan | Alternatives | Level 3 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
U.S. Plans | Pension Plan | Alternatives | Fair Value Measured at Net Asset Value Per Share | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 6,337,000,000 | 6,038,000,000 | |
U.S. Plans | Pension Plan | Hedge funds | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 3,258,000,000 | 2,961,000,000 | |
U.S. Plans | Pension Plan | Hedge funds | Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
U.S. Plans | Pension Plan | Hedge funds | Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
U.S. Plans | Pension Plan | Hedge funds | Level 3 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
U.S. Plans | Pension Plan | Hedge funds | Fair Value Measured at Net Asset Value Per Share | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 3,258,000,000 | 2,961,000,000 | |
U.S. Plans | Pension Plan | Private equity | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 1,859,000,000 | 1,884,000,000 | |
U.S. Plans | Pension Plan | Private equity | Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
U.S. Plans | Pension Plan | Private equity | Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
U.S. Plans | Pension Plan | Private equity | Level 3 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
U.S. Plans | Pension Plan | Private equity | Fair Value Measured at Net Asset Value Per Share | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 1,859,000,000 | 1,884,000,000 | |
U.S. Plans | Pension Plan | Real estate | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 1,220,000,000 | 1,193,000,000 | |
U.S. Plans | Pension Plan | Real estate | Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
U.S. Plans | Pension Plan | Real estate | Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
U.S. Plans | Pension Plan | Real estate | Level 3 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
U.S. Plans | Pension Plan | Real estate | Fair Value Measured at Net Asset Value Per Share | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 1,220,000,000 | 1,193,000,000 | |
U.S. Plans | Pension Plan | Cash and cash equivalents | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | (605,000,000) | (195,000,000) | |
U.S. Plans | Pension Plan | Cash and cash equivalents | Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | (605,000,000) | (195,000,000) | |
U.S. Plans | Pension Plan | Cash and cash equivalents | Level 1 | Repurchase Agreements | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | (2,400,000,000) | (1,900,000,000) | |
U.S. Plans | Pension Plan | Cash and cash equivalents | Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
U.S. Plans | Pension Plan | Cash and cash equivalents | Level 3 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
U.S. Plans | Pension Plan | Cash and cash equivalents | Fair Value Measured at Net Asset Value Per Share | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
U.S. Plans | Pension Plan | Other | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | (1,151,000,000) | (1,537,000,000) | |
U.S. Plans | Pension Plan | Other | Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | (1,151,000,000) | (1,537,000,000) | |
U.S. Plans | Pension Plan | Other | Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
U.S. Plans | Pension Plan | Other | Level 3 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
U.S. Plans | Pension Plan | Other | Fair Value Measured at Net Asset Value Per Share | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | $ 0 | 0 | |
Non-U.S. Plans | Pension Plan | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Expected long-term rate of return on assets | 3.42% | | |
Defined Benefit Plan Fair Value Of Plan Assets Dividends And Interest Receivable | $ 102,000,000 | 102,000,000 | |
Defined Benefit Plan, Plan Assets, Amount | 33,820,000,000 | 29,958,000,000 | $ 27,273,000,000 |
Non-U.S. Plans | Pension Plan | Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 704,000,000 | (223,000,000) | |
Non-U.S. Plans | Pension Plan | Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 24,799,000,000 | 22,382,000,000 | |
Non-U.S. Plans | Pension Plan | Level 3 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 6,006,000,000 | 5,572,000,000 | |
Non-U.S. Plans | Pension Plan | Fair Value Measured at Net Asset Value Per Share | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 2,311,000,000 | 2,227,000,000 | |
Non-U.S. Plans | Pension Plan | Equity | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 3,650,000,000 | 2,013,000,000 | |
Non-U.S. Plans | Pension Plan | Equity | Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 3,417,000,000 | 1,909,000,000 | |
Non-U.S. Plans | Pension Plan | Equity | Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 229,000,000 | 101,000,000 | |
Non-U.S. Plans | Pension Plan | Equity | Level 3 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 4,000,000 | 3,000,000 | |
Non-U.S. Plans | Pension Plan | Equity | Fair Value Measured at Net Asset Value Per Share | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
Non-U.S. Plans | Pension Plan | U.S. companies | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 2,037,000,000 | 1,102,000,000 | |
Non-U.S. Plans | Pension Plan | U.S. companies | Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 1,989,000,000 | 1,059,000,000 | |
Non-U.S. Plans | Pension Plan | U.S. companies | Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 48,000,000 | 43,000,000 | |
Non-U.S. Plans | Pension Plan | U.S. companies | Level 3 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
Non-U.S. Plans | Pension Plan | U.S. companies | Fair Value Measured at Net Asset Value Per Share | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
Non-U.S. Plans | Pension Plan | International companies | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 1,613,000,000 | 911,000,000 | |
Non-U.S. Plans | Pension Plan | International companies | Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 1,428,000,000 | 850,000,000 | |
Non-U.S. Plans | Pension Plan | International companies | Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 181,000,000 | 58,000,000 | |
Non-U.S. Plans | Pension Plan | International companies | Level 3 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 4,000,000 | 3,000,000 | |
Non-U.S. Plans | Pension Plan | International companies | Fair Value Measured at Net Asset Value Per Share | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
Non-U.S. Plans | Pension Plan | Fixed Income | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 24,523,000,000 | 22,725,000,000 | |
Non-U.S. Plans | Pension Plan | Fixed Income | Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 2,000,000 | 395,000,000 | |
Non-U.S. Plans | Pension Plan | Fixed Income | Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 24,570,000,000 | 22,281,000,000 | |
Non-U.S. Plans | Pension Plan | Fixed Income | Level 3 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | (49,000,000) | 49,000,000 | |
Non-U.S. Plans | Pension Plan | Fixed Income | Fair Value Measured at Net Asset Value Per Share | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
Non-U.S. Plans | Pension Plan | U.S. government | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 75,000,000 | 474,000,000 | |
Non-U.S. Plans | Pension Plan | U.S. government | Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 380,000,000 | |
Non-U.S. Plans | Pension Plan | U.S. government | Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 75,000,000 | 94,000,000 | |
Non-U.S. Plans | Pension Plan | U.S. government | Level 3 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
Non-U.S. Plans | Pension Plan | U.S. government | Fair Value Measured at Net Asset Value Per Share | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
Non-U.S. Plans | Pension Plan | Non-U.S. government | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 20,398,000,000 | 18,256,000,000 | |
Non-U.S. Plans | Pension Plan | Non-U.S. government | Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
Non-U.S. Plans | Pension Plan | Non-U.S. government | Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 20,398,000,000 | 18,256,000,000 | |
Non-U.S. Plans | Pension Plan | Non-U.S. government | Level 3 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
Non-U.S. Plans | Pension Plan | Non-U.S. government | Fair Value Measured at Net Asset Value Per Share | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
Non-U.S. Plans | Pension Plan | Corporate bonds | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 3,444,000,000 | 3,124,000,000 | |
Non-U.S. Plans | Pension Plan | Corporate bonds | Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
Non-U.S. Plans | Pension Plan | Corporate bonds | Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 3,391,000,000 | 3,089,000,000 | |
Non-U.S. Plans | Pension Plan | Corporate bonds | Level 3 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 53,000,000 | 35,000,000 | |
Non-U.S. Plans | Pension Plan | Corporate bonds | Fair Value Measured at Net Asset Value Per Share | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
Non-U.S. Plans | Pension Plan | Mortgage/other asset-backed | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 531,000,000 | 634,000,000 | |
Non-U.S. Plans | Pension Plan | Mortgage/other asset-backed | Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
Non-U.S. Plans | Pension Plan | Mortgage/other asset-backed | Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 515,000,000 | 565,000,000 | |
Non-U.S. Plans | Pension Plan | Mortgage/other asset-backed | Level 3 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 16,000,000 | 69,000,000 | |
Non-U.S. Plans | Pension Plan | Mortgage/other asset-backed | Fair Value Measured at Net Asset Value Per Share | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
Non-U.S. Plans | Pension Plan | Commingled funds | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 111,000,000 | 175,000,000 | |
Non-U.S. Plans | Pension Plan | Commingled funds | Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
Non-U.S. Plans | Pension Plan | Commingled funds | Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 111,000,000 | 174,000,000 | |
Non-U.S. Plans | Pension Plan | Commingled funds | Level 3 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 1,000,000 | |
Non-U.S. Plans | Pension Plan | Commingled funds | Fair Value Measured at Net Asset Value Per Share | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
Non-U.S. Plans | Pension Plan | Fixed Income Funds Net Derivative Financial Instruments | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | (36,000,000) | 62,000,000 | |
Non-U.S. Plans | Pension Plan | Fixed Income Funds Net Derivative Financial Instruments | Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 2,000,000 | 15,000,000 | |
Non-U.S. Plans | Pension Plan | Fixed Income Funds Net Derivative Financial Instruments | Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 80,000,000 | 103,000,000 | |
Non-U.S. Plans | Pension Plan | Fixed Income Funds Net Derivative Financial Instruments | Level 3 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | (118,000,000) | (56,000,000) | |
Non-U.S. Plans | Pension Plan | Fixed Income Funds Net Derivative Financial Instruments | Fair Value Measured at Net Asset Value Per Share | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
Non-U.S. Plans | Pension Plan | Alternatives | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 2,311,000,000 | 2,227,000,000 | |
Non-U.S. Plans | Pension Plan | Alternatives | Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
Non-U.S. Plans | Pension Plan | Alternatives | Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
Non-U.S. Plans | Pension Plan | Alternatives | Level 3 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
Non-U.S. Plans | Pension Plan | Alternatives | Fair Value Measured at Net Asset Value Per Share | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 2,311,000,000 | 2,227,000,000 | |
Non-U.S. Plans | Pension Plan | Hedge funds | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 1,259,000,000 | 1,207,000,000 | |
Non-U.S. Plans | Pension Plan | Hedge funds | Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
Non-U.S. Plans | Pension Plan | Hedge funds | Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
Non-U.S. Plans | Pension Plan | Hedge funds | Level 3 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
Non-U.S. Plans | Pension Plan | Hedge funds | Fair Value Measured at Net Asset Value Per Share | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 1,259,000,000 | 1,207,000,000 | |
Non-U.S. Plans | Pension Plan | Private equity | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 729,000,000 | 695,000,000 | |
Non-U.S. Plans | Pension Plan | Private equity | Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
Non-U.S. Plans | Pension Plan | Private equity | Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
Non-U.S. Plans | Pension Plan | Private equity | Level 3 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
Non-U.S. Plans | Pension Plan | Private equity | Fair Value Measured at Net Asset Value Per Share | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 729,000,000 | 695,000,000 | |
Non-U.S. Plans | Pension Plan | Real estate | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 323,000,000 | 325,000,000 | |
Non-U.S. Plans | Pension Plan | Real estate | Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
Non-U.S. Plans | Pension Plan | Real estate | Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
Non-U.S. Plans | Pension Plan | Real estate | Level 3 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
Non-U.S. Plans | Pension Plan | Real estate | Fair Value Measured at Net Asset Value Per Share | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 323,000,000 | 325,000,000 | |
Non-U.S. Plans | Pension Plan | Cash and cash equivalents | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | (2,257,000,000) | (1,765,000,000) | |
Non-U.S. Plans | Pension Plan | Cash and cash equivalents | Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | (2,257,000,000) | (1,765,000,000) | |
Non-U.S. Plans | Pension Plan | Cash and cash equivalents | Level 1 | Repurchase Agreements | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | (2,900,000,000) | (2,500,000,000) | |
Non-U.S. Plans | Pension Plan | Cash and cash equivalents | Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
Non-U.S. Plans | Pension Plan | Cash and cash equivalents | Level 3 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
Non-U.S. Plans | Pension Plan | Cash and cash equivalents | Fair Value Measured at Net Asset Value Per Share | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
Non-U.S. Plans | Pension Plan | Other | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 5,593,000,000 | 4,758,000,000 | |
Non-U.S. Plans | Pension Plan | Other | Level 1 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | (458,000,000) | (762,000,000) | |
Non-U.S. Plans | Pension Plan | Other | Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
Non-U.S. Plans | Pension Plan | Other | Level 3 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 6,051,000,000 | 5,520,000,000 | |
Non-U.S. Plans | Pension Plan | Other | Fair Value Measured at Net Asset Value Per Share | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | 0 | 0 | |
Non-U.S. Plans | Pension Plan | Ford Werke GmbH | Other Pension Benefit Plan Asset Insurance Contracts [Member] | Level 3 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Defined Benefit Plan, Plan Assets, Amount | $ 5,000,000,000 | $ 4,500,000,000 | |
Canada | Pension Plan | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Expected long-term rate of return on assets | 4.25% | | |
United Kingdom | Pension Plan | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Expected long-term rate of return on assets | 3.25% | | |