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
Mar. 31, 2019	Mar. 31, 2018
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Net sales	$ 2,163	$ 2,138
Cost of sales	1,863	1,831
Other expense, net	13	0
Cash Flow Hedging [Member] \| Currency Swap [Member] \| Other Expense, Net [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Reclassification from AOCI	(23)	31
Cash Flow Hedging [Member] \| Forward Contracts [Member] \| Sales Revenue, Net [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	$ (1)	$ (2)

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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