Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Amount Reclassified from Accumulated Other Comprehensive Income
Net sales	$ 1,469	$ 1,453
Cost of sales	1,115	1,102
Financing costs, net	16	21
Total before tax reclassifications	(4)	(4)
Tax provision		1
Total after-tax reclassifications	(4)	(3)
Reclassification out of Accumulated Other Comprehensive Income | Commodity Contracts
Amount Reclassified from Accumulated Other Comprehensive Income
Cost of sales	(5)	(3)
Reclassification out of Accumulated Other Comprehensive Income | Foreign Currency Contracts
Amount Reclassified from Accumulated Other Comprehensive Income
Net sales	$ 1
Reclassification out of Accumulated Other Comprehensive Income | Interest Rate Contract
Amount Reclassified from Accumulated Other Comprehensive Income
Financing costs, net		$ (1)