Accumulated Other Comprehensive Loss (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	$ (1,666)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	36
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax	269
Change in other comprehensive income, Separation and Merger Transaction	37
Net change	399	139	(398)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	406
Ending Balance	(1,260)	(1,666)
Unrealized Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	6	(135)	53
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax	36
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax	(80)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0
Net change		141	(188)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(44)
Ending Balance	(38)	6	(135)
Pension and Other Post retirement Benefit Adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(1,597)	(1,597)	(1,428)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	330
Change in other comprehensive income, Separation and Merger Transaction	33
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	77
Net change		0	(169)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	440
Ending Balance	(1,157)	(1,597)	(1,597)
Unrealized Gain (Loss) on Derivatives
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(75)	(68)	(36)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	19
Change in other comprehensive income, Separation and Merger Transaction	4
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	(13)
Net change		(7)	(32)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	10
Ending Balance	(65)	(75)	(68)
Accumulated Other Comprehensive (Loss) Income
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(1,666)	(1,800)	(1,411)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	64
Net change	406	134	(389)
Ending Balance	$ (1,260)	$ (1,666)	$ (1,800)