Segment Information - Total Assets (Details) - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015
Assets
Total assets:	$ 9,497	$ 9,421	$ 9,554
Reportable Segment Totals
Assets
Total assets:	9,162	9,126	9,249
Europe
Assets
Total assets:	2,972	2,902	3,030
North America
Assets
Total assets:	2,536	2,500	2,028
Latin America
Assets
Total assets:	2,629	2,807	3,297
Asia Pacific
Assets
Total assets:	1,025	917	894
Other.
Assets
Total assets:	$ 335	$ 295	$ 305