Segments, Geographical Area and Major Customer Information - Geographic Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	$ 7,209	$ 5,826	$ 6,060
Long-Lived Assets	1,807	1,413	1,167
UNITED STATES
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	3,209	2,695	2,805
Long-Lived Assets	828	634	441
Other North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	479	433	405
Long-Lived Assets	82	80	90
North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	3,688	3,128	3,210
Long-Lived Assets	910	714	531
ITALY
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	762	499	570
Long-Lived Assets	122	58	58
GERMANY
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	473	377	368
Long-Lived Assets	149	98	100
Other Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	919	740	785
Long-Lived Assets	211	157	153
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	2,154	1,616	1,723
Long-Lived Assets	482	313	311
South America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	500	338	377
Long-Lived Assets	153	172	99
Asia Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	867	744	750
Long-Lived Assets	$ 262	$ 214	$ 226