Segment Information - Assets, Investments, Equity, Capital Expenses and Depreciation and Amortization (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Assets
Total assets:	$ 9,135	$ 9,421	$ 7,843
Equity investments
Equity investments:	433	409	427
Equity earnings:
Equity earnings	60	60	64
Capital expenditures:
Capital expenditures:	454	402	369
Depreciation and amortization expense:
Depreciation and amortization expense:	478	409	418
Reportable Segment Totals
Assets
Total assets:	8,777	9,126	7,503
Equity investments
Equity investments:	216	245	258
Equity earnings:
Equity earnings	31	42	40
Capital expenditures:
Capital expenditures:	453	400	366
Depreciation and amortization expense:
Depreciation and amortization expense:	467	395	403
Europe
Assets
Total assets:	2,792	2,902	3,214
Equity investments
Equity investments:	78	78	81
Equity earnings:
Equity earnings	15	16	19
Capital expenditures:
Capital expenditures:	163	164	188
Depreciation and amortization expense:
Depreciation and amortization expense:	118	120	140
North America
Assets
Total assets:	2,522	2,500	1,971
Equity investments
Equity investments:	21	22	24
Equity earnings:
Equity earnings	12	19	17
Capital expenditures:
Capital expenditures:	108	97	89
Depreciation and amortization expense:
Depreciation and amortization expense:	139	128	131
Latin America
Assets
Total assets:	2,537	2,807	1,300
Capital expenditures:
Capital expenditures:	123	89	55
Depreciation and amortization expense:
Depreciation and amortization expense:	173	107	79
Asia Pacific
Assets
Total assets:	926	917	1,018
Equity investments
Equity investments:	117	145	153
Equity earnings:
Equity earnings	4	7	4
Capital expenditures:
Capital expenditures:	59	50	34
Depreciation and amortization expense:
Depreciation and amortization expense:	37	40	53
Other.
Assets
Total assets:	358	295	340
Equity investments
Equity investments:	217	164	169
Equity earnings:
Equity earnings	29	18	24
Capital expenditures:
Capital expenditures:	1	2	3
Depreciation and amortization expense:
Depreciation and amortization expense:	$ 11	$ 14	$ 15