Segment and Geographic Area Information - Schedule of Reconciliation of Certain Segment Information to Consolidated Totals (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales	$ 3,401	$ 3,559	$ 3,691	$ 3,541	$ 3,472	$ 3,524	$ 3,573	$ 3,445	$ 14,192	$ 14,014	$ 12,960
Total segment sales
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales									14,370	14,226	13,023
Elimination of intersegment sales
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales									(183)	(205)	(183)
Corporate
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales									$ 5	$ (7)	$ 120