Business Segment and Geographic Region Information Business Segment and Geographic Region Information (Details 2) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 20,855	$ 22,552	$ 22,046
Net property, plant and equipment	3,565	3,750	3,833
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	11,396	11,701	11,092
Net property, plant and equipment	1,982	1,988	1,966
Canada
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	969	1,113	1,154
Net property, plant and equipment	19	25	28
Latin America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	1,726	1,988	2,113
Net property, plant and equipment	243	306	331
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	4,379	5,074	5,112
Net property, plant and equipment	734	799	856
Asia Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	2,385	2,676	2,575
Net property, plant and equipment	$ 587	$ 632	$ 652