Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015	Dec. 31, 2014
Accumulated Other Comprehensive Loss [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	$ (293)	$ (275)	$ (301)	$ (147)
Other comprehensive income before reclassifications	7	(130)
Amounts reclassified from accumulated other comprehensive income	1	2
Accumulated Translation Adjustment [Member]
Accumulated Other Comprehensive Loss [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(264)	(241)	(273)	(111)
Other comprehensive income before reclassifications	9	(130)
Amounts reclassified from accumulated other comprehensive income	0	0
Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Other Comprehensive Loss [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(29)	(34)	$ (28)	$ (36)
Other comprehensive income before reclassifications	(2)	0
Amounts reclassified from accumulated other comprehensive income	$ 1	$ 2