Fair Value Measurements and Derivatives - Location and Amount of Gain or (Loss) Recognized in Income on Cash Flow Hedging Relationships (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Net sales	$ 2,164	$ 1,978	$ 6,633	$ 6,170
Cost of sales	1,882	1,692	5,725	5,269
Other expense, net	8	9	31	19
Cash Flow Hedging [Member] \| Forward Contracts [Member] \| Net Sales [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Reclassification from AOCI
Cash Flow Hedging [Member] \| Forward Contracts [Member] \| Cost of Sales [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Reclassification from AOCI	(2)		(7)	(2)
Cash Flow Hedging [Member] \| Currency Swap [Member] \| Other Expense, Net [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Reclassification from AOCI	$ (47)	$ (7)	$ (55)	$ (40)

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

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