Financial Instruments Effect of Derivative Instruments (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2020	Mar. 31, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Loss, Unrealized (Loss) Gain on Derivatives Arising During Period, before Tax	[1]	$ (6)	$ 1
Gain (Loss) on Derivative Instruments, Net, Pretax		167	(15)
Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Loss, Unrealized (Loss) Gain on Derivatives Arising During Period, before Tax	[1]	(6)	1
Loss on Hedging Activity, Pre-tax	[2]	(7)	(4)
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Foreign Currency Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Loss, Unrealized (Loss) Gain on Derivatives Arising During Period, before Tax	[1]	19	0
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Commodity Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Loss, Unrealized (Loss) Gain on Derivatives Arising During Period, before Tax	[1]	(34)	1
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Commodity Contract [Member] | Cost of Goods Sold
Derivative Instruments, Gain (Loss) [Line Items]
Loss on Hedging Activity, Pre-tax	[2],[3]	(7)	(4)
Designated as Hedging Instrument [Member] | Net Investment Hedging [Member] | Foreign Currency Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Loss, Unrealized (Loss) Gain on Derivatives Arising During Period, before Tax	[1]	9	0
Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net, Pre-tax		174	(11)
Not Designated as Hedging Instrument [Member] | Foreign Currency Contract [Member] | Other Income - net
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net, Pre-tax	[4]	165	(17)
Not Designated as Hedging Instrument [Member] | Commodity Contract [Member] | Cost of Goods Sold
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net, Pre-tax	[3]	$ 9	$ 6

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

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

[3] Recorded in cost of goods sold.

[4] Gain recognized in other income - net was partially offset by the related gain on the foreign currency-denominated monetary assets and liabilities of the company's operations. See Note 7 - Supplementary Information, for additional information.