Retirement Benefits - Fair Value of Plan Assets (Details) - USD ($)	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
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	5.75%
Defined Benefit Plan Fair Value Of Plan Assets Dividends And Interest Receivable	$ 310,000,000	$ 317,000,000
Defined Benefit Plan, Plan Assets, Amount	45,909,000,000	48,355,000,000	$ 44,253,000,000
U.S. Plans | Pension Plan | Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	9,804,000,000	10,995,000,000
U.S. Plans | Pension Plan | Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	29,396,000,000	31,007,000,000
U.S. Plans | Pension Plan | Level 3
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	20,000,000	16,000,000
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	6,689,000,000	6,337,000,000
U.S. Plans | Pension Plan | Equity
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	2,172,000,000	3,547,000,000
U.S. Plans | Pension Plan | Equity | Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	2,136,000,000	3,507,000,000
U.S. Plans | Pension Plan | Equity | Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	28,000,000	38,000,000
U.S. Plans | Pension Plan | Equity | Level 3
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	8,000,000	2,000,000
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	1,416,000,000	2,181,000,000
U.S. Plans | Pension Plan | U.S. companies | Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	1,396,000,000	2,161,000,000
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	756,000,000	1,366,000,000
U.S. Plans | Pension Plan | International companies | Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	740,000,000	1,346,000,000
U.S. Plans | Pension Plan | International companies | Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	8,000,000	18,000,000
U.S. Plans | Pension Plan | International companies | Level 3
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	8,000,000	2,000,000
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	39,041,000,000	40,227,000,000
U.S. Plans | Pension Plan | Fixed Income | Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	9,661,000,000	9,244,000,000
U.S. Plans | Pension Plan | Fixed Income | Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	29,368,000,000	30,969,000,000
U.S. Plans | Pension Plan | Fixed Income | Level 3
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	12,000,000	14,000,000
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	11,347,000,000	11,420,000,000
U.S. Plans | Pension Plan | U.S. government | Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	9,660,000,000	9,243,000,000
U.S. Plans | Pension Plan | U.S. government | Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	1,687,000,000	2,177,000,000
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	1,242,000,000	1,217,000,000
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	1,230,000,000	1,203,000,000
U.S. Plans | Pension Plan | Non-U.S. government | Level 3
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	12,000,000	14,000,000
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	25,842,000,000	26,983,000,000
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	25,842,000,000	26,983,000,000
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	464,000,000	512,000,000
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	464,000,000	512,000,000
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	164,000,000	189,000,000
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	164,000,000	189,000,000
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	(18,000,000)	(94,000,000)
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	1,000,000
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	(19,000,000)	(95,000,000)
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 | Alternatives
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	6,690,000,000	6,337,000,000
U.S. Plans | Pension Plan | Alternatives | Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	1,000,000	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	6,689,000,000	6,337,000,000
U.S. Plans | Pension Plan | Hedge funds
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	3,390,000,000	3,258,000,000
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	3,390,000,000	3,258,000,000
U.S. Plans | Pension Plan | Private equity
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	1,977,000,000	1,859,000,000
U.S. Plans | Pension Plan | Private equity | Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	1,000,000	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	1,976,000,000	1,859,000,000
U.S. Plans | Pension Plan | Real estate
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	1,323,000,000	1,220,000,000
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	1,323,000,000	1,220,000,000
U.S. Plans | Pension Plan | Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	(1,220,000,000)	(605,000,000)
U.S. Plans | Pension Plan | Cash and cash equivalents | Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	(1,220,000,000)	(605,000,000)
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	(774,000,000)	(1,151,000,000)
U.S. Plans | Pension Plan | Other | Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	(774,000,000)	(1,151,000,000)
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
U.S. Plans | Pension Plan | Repurchase Agreements | Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	$ 2,900,000,000	(2,400,000,000)
Non-U.S. Plans | Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Expected long-term rate of return on assets	3.29%
Defined Benefit Plan Fair Value Of Plan Assets Dividends And Interest Receivable	$ 96,000,000	102,000,000
Defined Benefit Plan, Plan Assets, Amount	33,085,000,000	33,820,000,000	$ 29,958,000,000
Non-U.S. Plans | Pension Plan | Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	797,000,000	704,000,000
Non-U.S. Plans | Pension Plan | Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	23,905,000,000	24,799,000,000
Non-U.S. Plans | Pension Plan | Level 3
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	6,020,000,000	6,006,000,000
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	2,363,000,000	2,311,000,000
Non-U.S. Plans | Pension Plan | Equity
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	3,223,000,000	3,650,000,000
Non-U.S. Plans | Pension Plan | Equity | Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	3,116,000,000	3,417,000,000
Non-U.S. Plans | Pension Plan | Equity | Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	107,000,000	229,000,000
Non-U.S. Plans | Pension Plan | Equity | Level 3
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	0	4,000,000
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	1,910,000,000	2,037,000,000
Non-U.S. Plans | Pension Plan | U.S. companies | Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	1,862,000,000	1,989,000,000
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	48,000,000
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	1,313,000,000	1,613,000,000
Non-U.S. Plans | Pension Plan | International companies | Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	1,254,000,000	1,428,000,000
Non-U.S. Plans | Pension Plan | International companies | Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	59,000,000	181,000,000
Non-U.S. Plans | Pension Plan | International companies | Level 3
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	0	4,000,000
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	24,080,000,000	24,523,000,000
Non-U.S. Plans | Pension Plan | Fixed Income | Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	46,000,000	2,000,000
Non-U.S. Plans | Pension Plan | Fixed Income | Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	23,798,000,000	24,570,000,000
Non-U.S. Plans | Pension Plan | Fixed Income | Level 3
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	236,000,000	(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	60,000,000	75,000,000
Non-U.S. Plans | Pension Plan | U.S. government | Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	47,000,000	0
Non-U.S. Plans | Pension Plan | U.S. government | Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	13,000,000	75,000,000
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	20,461,000,000	20,398,000,000
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	20,338,000,000	20,398,000,000
Non-U.S. Plans | Pension Plan | Non-U.S. government | Level 3
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	123,000,000	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	2,971,000,000	3,444,000,000
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	2,901,000,000	3,391,000,000
Non-U.S. Plans | Pension Plan | Corporate bonds | Level 3
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	70,000,000	53,000,000
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	353,000,000	531,000,000
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	338,000,000	515,000,000
Non-U.S. Plans | Pension Plan | Mortgage/other asset-backed | Level 3
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	15,000,000	16,000,000
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	185,000,000	111,000,000
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	185,000,000	111,000,000
Non-U.S. Plans | Pension Plan | Commingled funds | Level 3
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	0	0
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	50,000,000	(36,000,000)
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	(1,000,000)	2,000,000
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	23,000,000	80,000,000
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	28,000,000	(118,000,000)
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	2,363,000,000	2,311,000,000
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	2,363,000,000	2,311,000,000
Non-U.S. Plans | Pension Plan | Hedge funds
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	1,221,000,000	1,259,000,000
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	1,221,000,000	1,259,000,000
Non-U.S. Plans | Pension Plan | Private equity
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	756,000,000	729,000,000
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	756,000,000	729,000,000
Non-U.S. Plans | Pension Plan | Real estate
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	386,000,000	323,000,000
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	386,000,000	323,000,000
Non-U.S. Plans | Pension Plan | Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	(1,899,000,000)	(2,257,000,000)
Non-U.S. Plans | Pension Plan | Cash and cash equivalents | Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	(1,899,000,000)	(2,257,000,000)
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	5,318,000,000	5,593,000,000
Non-U.S. Plans | Pension Plan | Other | Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	(466,000,000)	(458,000,000)
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	5,784,000,000	6,051,000,000
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 | Repurchase Agreements | Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Amount	2,600,000,000	(2,900,000,000)
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	$ 4,700,000,000	$ 5,000,000,000
Canada | Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Expected long-term rate of return on assets	4.11%
United Kingdom | Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Expected long-term rate of return on assets	3.00%