Business Segment and Geographic Region Information - Geographic Region Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 21,609	$ 20,404	$ 19,747
Net property, plant and equipment	3,467	3,502	3,443
UNITED STATES
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	12,034	11,222	10,937
Net property, plant and equipment	1,898	1,872	1,924
Canada
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	931	942	898
Net property, plant and equipment	20	20	19
Latin America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	1,442	1,485	1,448
Net property, plant and equipment	286	290	281
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	4,553	4,394	4,228
Net property, plant and equipment	723	769	681
Asia Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	2,649	2,361	2,236
Net property, plant and equipment	$ 540	$ 551	$ 538