Derivative and Other Financial Instruments - Cash Flow Hedges (Details) - USD ($) $ in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2020	Sep. 30, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Net sales	$ 3,167			$ 3,084			$ 8,613	$ 8,874
Cost of products sold	2,478			2,455			6,853	7,082
Income Tax Expense (Benefit)	(91)			(54)			(182)	(190)
Net income	245	$ 141	$ 114	204	$ 174	$ 131	500	509
Designated as Hedging Instrument | Derivatives in cash flow hedges
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain/(loss) recognized in AOCI (effective portion)	14			(14)			(21)	(24)
Designated as Hedging Instrument | Derivatives in cash flow hedges | Reclassification out of Accumulated Other Comprehensive Income
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain/(loss) reclassified from AOCI into earnings, before tax	(14)			(13)			(47)	(30)
Income Tax Expense (Benefit)	3			3			12	7
Net income	(11)			(10)			(35)	(23)
Designated as Hedging Instrument | Foreign exchange | Derivatives in cash flow hedges
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain/(loss) recognized in AOCI (effective portion)	(2)			(2)			1	(4)
Designated as Hedging Instrument | Foreign exchange | Derivatives in cash flow hedges | Reclassification out of Accumulated Other Comprehensive Income
Derivative Instruments, Gain (Loss) [Line Items]
Net sales	0			(2)			(3)	(3)
Cost of products sold	0			1			0	0
Designated as Hedging Instrument | Interest Rate Swap | Derivatives in cash flow hedges
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain/(loss) recognized in AOCI (effective portion)	0			(1)			(1)	(1)
Designated as Hedging Instrument | Commodities | Derivatives in cash flow hedges
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain/(loss) recognized in AOCI (effective portion)	16			(11)			(21)	(19)
Designated as Hedging Instrument | Commodities | Derivatives in cash flow hedges | Reclassification out of Accumulated Other Comprehensive Income
Derivative Instruments, Gain (Loss) [Line Items]
Net sales	7			4			17	10
Cost of products sold	$ (21)			$ (16)			$ (61)	$ (37)