Segment Information - Total Assets (Details) - USD ($) $ in Millions	Jun. 30, 2016	Dec. 31, 2015	Jun. 30, 2015
Assets
Total assets:	$ 9,667	$ 9,421	$ 7,618
Reportable Segment Totals
Assets
Total assets:	9,318	9,126	7,174
Europe
Assets
Total assets:	2,977	2,902	3,117
North America
Assets
Total assets:	2,562	2,500	2,042
Latin America
Assets
Total assets:	2,798	2,807	1,094
Asia Pacific
Assets
Total assets:	981	917	921
Other
Assets
Total assets:	$ 349	$ 295	$ 444