Derivative and Other Financial Instruments - Cash Flow Hedges (Details) - USD ($) $ in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Sep. 30, 2019	Sep. 30, 2018
Derivative Instruments, Gain (Loss) [Line Items]
Net sales	$ 3,084			$ 3,174			$ 8,874	$ 8,417
Cost of products sold	2,455			2,530			7,082	6,804
Income Tax Expense (Benefit)	(54)			(102)			(190)	(196)
Net income	204	$ 174	$ 131	193	$ 147	$ 113	509	453
Derivatives in cash flow hedges | Interest Rate Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain/(loss) recognized in AOCI (effective portion)	(1)						(1)
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)			(5)			(24)	(9)
Designated as Hedging Instrument | Derivatives in cash flow hedges | Foreign exchange
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain/(loss) recognized in AOCI (effective portion)	(2)			(3)			(4)	(5)
Designated as Hedging Instrument | Derivatives in cash flow hedges | Commodities
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain/(loss) recognized in AOCI (effective portion)	(11)			(2)			(19)	(4)
Reclassification out of Accumulated Other Comprehensive Income | Designated as Hedging Instrument | Derivatives in cash flow hedges
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain/(loss) reclassified from AOCI into earnings, before tax	(13)			7			(30)	24
Income Tax Expense (Benefit)	3			(1)			7	(6)
Net income	(10)			6			(23)	18
Reclassification out of Accumulated Other Comprehensive Income | Designated as Hedging Instrument | Derivatives in cash flow hedges | Foreign exchange
Derivative Instruments, Gain (Loss) [Line Items]
Net sales	(2)			(6)			(3)	(7)
Cost of products sold	1			5			0	4
Reclassification out of Accumulated Other Comprehensive Income | Designated as Hedging Instrument | Derivatives in cash flow hedges | Commodities
Derivative Instruments, Gain (Loss) [Line Items]
Net sales	4			(1)			10	(6)
Cost of products sold	$ (16)			$ 9			$ (37)	$ 33