Accumulated Other Comprehensive Income (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	$ (132)	[1]	$ (198)	[1]	$ (149)	[1]	$ (181)	[1]
Other comprehensive income before reclassifications	(29)	[1]	3	[1]	(14)	[1]	(15)	[1]
Amounts reclassified from accumulated other comprehensive income (2)	1	[1],[2]	1	[1],[2]	3	[1],[2]	2	[1],[2]
Other comprehensive income (loss)	(28)	[1]	4	[1]	(11)	[1]	(13)	[1]
Ending Balance	(160)	[1]	(194)	[1]	(160)	[1]	(194)	[1]
Accumulated Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	(15)	[1]	(18)	[1]	(30)	[1]	0	[1]
Other comprehensive income before reclassifications	(29)	[1]	3	[1]	(14)	[1]	(15)	[1]
Amounts reclassified from accumulated other comprehensive income (2)	0	[1],[2]	0	[1],[2]	0	[1],[2]	0	[1],[2]
Other comprehensive income (loss)	(29)	[1]	3	[1]	(14)	[1]	(15)	[1]
Ending Balance	(44)	[1]	(15)	[1]	(44)	[1]	(15)	[1]
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	(11)	[1]	(15)	[1]	(13)	[1]	(16)	[1]
Other comprehensive income before reclassifications	0	[1]	0	[1]	0	[1]	0	[1]
Amounts reclassified from accumulated other comprehensive income (2)	1	[1],[2]	1	[1],[2]	3	[1],[2]	2	[1],[2]
Other comprehensive income (loss)	1	[1]	1	[1]	3	[1]	2	[1]
Ending Balance	(10)	[1]	(14)	[1]	(10)	[1]	(14)	[1]
Defined Benefit Pension Items [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	(106)	[1]	(165)	[1]	(106)	[1]	(165)	[1]
Other comprehensive income before reclassifications	0	[1]	0	[1]	0	[1]	0	[1]
Amounts reclassified from accumulated other comprehensive income (2)	0	[1],[2]	0	[1],[2]	0	[1],[2]	0	[1],[2]
Other comprehensive income (loss)	0	[1]	0	[1]	0	[1]	0	[1]
Ending Balance	$ (106)	[1]	$ (165)	[1]	$ (106)	[1]	$ (165)	[1]

[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.