Balance Sheet Effect of Derivative Financial Instruments (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Derivative [Line Items]
Derivative, Notional Amount	$ 123,296	$ 148,094
Derivative Asset	1,590	2,930
Derivative Liability	1,070	1,235
Derivative Asset, Current	924	974
Derivative Liability, Current	535	859
Derivative Asset, Noncurrent	666	1,956
Derivative Liability, Noncurrent	535	376
Net obligation to return cash collateral	26	9
Derivative, Collateral, Right to Reclaim Cash	$ 71	96
Maximum Length of Time Hedged in Cash Flow Hedge	3 years
Designated as Hedging Instrument \| Cash Flow Hedging \| Foreign currency exchange contracts
Derivative [Line Items]
Derivative, Notional Amount	$ 11,534	15,860
Designated as Hedging Instrument \| Cash Flow Hedging \| Commodity Contract
Derivative [Line Items]
Derivative, Notional Amount	931	703
Designated as Hedging Instrument \| Fair Value Hedging \| Cross-currency interest rate swap contracts
Derivative [Line Items]
Derivative, Notional Amount	885	885
Designated as Hedging Instrument \| Fair Value Hedging \| Interest rate contracts
Derivative [Line Items]
Derivative, Notional Amount	23,893	26,924
Not Designated as Hedging Instrument \| Foreign currency exchange contracts
Derivative [Line Items]
Derivative, Notional Amount	28,463	25,956
Not Designated as Hedging Instrument \| Cross-currency interest rate swap contracts
Derivative [Line Items]
Derivative, Notional Amount	6,533	6,849
Not Designated as Hedging Instrument \| Interest rate contracts
Derivative [Line Items]
Derivative, Notional Amount	50,060	70,318
Not Designated as Hedging Instrument \| Commodity Contract
Derivative [Line Items]
Derivative, Notional Amount	997	599
Fair Value, Recurring \| Level 2
Derivative [Line Items]
Fair Value of Assets	1,590	2,930
Fair Value of Liabilities	1,070	1,235
Counterparty netting, Assets	719	505
Counterparty netting, Liabilities	719	505
Fair Value, Recurring \| Level 2 \| Designated as Hedging Instrument \| Cash Flow Hedging \| Foreign currency exchange contracts
Derivative [Line Items]
Fair Value of Assets	74	47
Fair Value of Liabilities	346	383
Fair Value, Recurring \| Level 2 \| Designated as Hedging Instrument \| Cash Flow Hedging \| Commodity Contract
Derivative [Line Items]
Fair Value of Assets	182	40
Fair Value of Liabilities	5	5
Fair Value, Recurring \| Level 2 \| Designated as Hedging Instrument \| Fair Value Hedging \| Cross-currency interest rate swap contracts
Derivative [Line Items]
Fair Value of Assets	0	46
Fair Value of Liabilities	49	0
Fair Value, Recurring \| Level 2 \| Designated as Hedging Instrument \| Fair Value Hedging \| Interest rate contracts
Derivative [Line Items]
Fair Value of Assets	544	1,331
Fair Value of Liabilities	274	4
Fair Value, Recurring \| Level 2 \| Not Designated as Hedging Instrument \| Foreign currency exchange contracts
Derivative [Line Items]
Fair Value of Assets	281	172
Fair Value of Liabilities	198	399
Fair Value, Recurring \| Level 2 \| Not Designated as Hedging Instrument \| Cross-currency interest rate swap contracts
Derivative [Line Items]
Fair Value of Assets	117	557
Fair Value of Liabilities	61	1
Fair Value, Recurring \| Level 2 \| Not Designated as Hedging Instrument \| Interest rate contracts
Derivative [Line Items]
Fair Value of Assets	338	663
Fair Value of Liabilities	126	439
Fair Value, Recurring \| Level 2 \| Not Designated as Hedging Instrument \| Commodity Contract
Derivative [Line Items]
Fair Value of Assets	54	74
Fair Value of Liabilities	$ 11	$ 4

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