Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	[1]	$ (255)	$ (132)	$ (217)	$ (149)
Other comprehensive income (loss) before reclassifications	[1]	(61)	(29)	(99)	(14)
Amounts reclassified from accumulated other comprehensive income (2)	[1],[2]	0	1	0	3
Net other comprehensive income (loss)	[1]	(61)	(28)	(99)	(11)
Ending Balance	[1]	(316)	(160)	(316)	(160)
Accumulated Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	[1]	(104)	(15)	(65)	(30)
Other comprehensive income (loss) before reclassifications	[1]	(61)	(29)	(100)	(14)
Amounts reclassified from accumulated other comprehensive income (2)	[1],[2]	0	0	0	0
Net other comprehensive income (loss)	[1]	(61)	(29)	(100)	(14)
Ending Balance	[1]	(165)	(44)	(165)	(44)
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	[1]	(8)	(11)	(9)	(13)
Other comprehensive income (loss) before reclassifications	[1]	0	0	1	0
Amounts reclassified from accumulated other comprehensive income (2)	[1],[2]	0	1	0	3
Net other comprehensive income (loss)	[1]	0	1	1	3
Ending Balance	[1]	(8)	(10)	(8)	(10)
Defined Benefit Pension Items [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	[1]	(143)	(106)	(143)	(106)
Other comprehensive income (loss) before reclassifications	[1]	0	0	0	0
Amounts reclassified from accumulated other comprehensive income (2)	[1],[2]	0	0	0	0
Net other comprehensive income (loss)	[1]	0	0	0	0
Ending Balance	[1]	$ (143)	$ (106)	$ (143)	$ (106)

[1] All amounts are net of tax.

[2] The amounts reclassified from accumulated other comprehensive income for losses on cash flow hedges are recorded within interest expense, net on the condensed consolidated statement of income. The amounts reclassified from accumulated other comprehensive income for pension and other postretirement benefits are included in operating expenses on the condensed consolidated statement of income.