Financial Instruments Effect of Derivative Instruments (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Derivative Instruments, Net, Pretax	[1]	$ 39	$ 19	$ (25)	$ 188
Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (loss) gain recognized in OCI- Pre Tax	[2]	17	(2)	153	(35)
Amount of gain (loss) recognized in Income - Pre-tax	[1]	(6)	22	9	(13)
Designated as Hedging Instrument [Member] | Net Investment Hedging [Member] | Foreign Currency Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (loss) gain recognized in OCI- Pre Tax	[2]	10	(20)	24	(16)
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Foreign Currency Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (loss) gain recognized in OCI- Pre Tax	[2]	18	4	12	27
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Foreign Currency Contract [Member] | Cost of Goods Sold
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized in Income - Pre-tax	[1],[3]	(10)	19	(11)	19
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Commodity Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (loss) gain recognized in OCI- Pre Tax	[2]	(11)	14	117	(46)
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Commodity Contract [Member] | Cost of Goods Sold
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized in Income - Pre-tax	[1],[3]	4	3	20	(32)
Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized in income - pre-tax	[1]	45	(3)	(34)	201
Not Designated as Hedging Instrument [Member] | Foreign Currency Contract [Member] | Cost of Goods Sold
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized in income - pre-tax	[1],[3]	12	3	(16)	19
Not Designated as Hedging Instrument [Member] | Foreign Currency Contract [Member] | Other Income - net
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized in income - pre-tax	[1],[4]	34	(6)	0	173
Not Designated as Hedging Instrument [Member] | Commodity Contract [Member] | Cost of Goods Sold
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized in income - pre-tax	[1],[3]	$ (1)	$ 0	$ (18)	$ 9

[1] For cash flow hedges, this represents the portion of the gain (loss) reclassified from accumulated OCI into income during the period.

[2] OCI is defined as other comprehensive income (loss).

[3] Recorded in cost of goods sold in the interim Consolidated Statements of Operations.

[4] Gain recognized in other income (expense) - net was partially offset by the related gain on the foreign currency-denominated monetary assets and liabilities of the company's operations. See Note 6 - Supplementary Information, for additional information.