Accumulated Other Comprehensive Income (Detail) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax		$ 4	$ 5	$ 5
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net Gain (Loss), before Tax		6	5	3
Currency Translation Adjustment, Beginning Balance		(80)	51	166
Currency translation adjustments, net of tax of $(9), $(22) and $(30), respectively		41	(131)	(115)
Currency Translation Adjustment, Ending Balance	$ (39)	(39)	(80)	51
Net Unrealized Gains (Losses) on Cash Flow Hedges, Beginning Balance		(2)	(1)	1
Net unrealized holding gains (losses), net of tax of $(1), $4, and $4, respectively.		0	(6)	(7)
Net Unrealized Gains (Losses) on Cash Flow Hedges, Period change		4	(1)	(2)
Net Unrealized Gains (Losses) on Cash Flow Hedges, Ending Balance	2	2	(2)	(1)
Net Unrealized Gains (Losses) on Available- For-Sale Securities, Beginning Balance		0	2	2
Net unrealized gains (losses) on available-for-sale securities, net of tax of $(1), $1,and $0, respectively		1	(2)	0
Less: Realized losses on available-for-sale securities reclassified to earnings, net of tax of $0, $0 and $1, respectively		0	0	0
Net unrealized gains on available-for-sale securities, net of tax of $0, $0 and $0, respectively		1	(2)	0
Net Unrealized Gains (Losses) on Available- For-Sale Securities, Ending Balance	1	1	0	2
Minimum Pension Liability Adjustment, Beginning Balance		(65)	(74)	(52)
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, before Reclassification Adjustments, Net of Tax		(57)	6	(24)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net Gain (Loss), Net of Tax		4	3	2
Minimum Pension Liability Adjustment, Period change		(53)	9	(22)
Minimum Pension Liability Adjustment, Ending Balance	(118)	(118)	(65)	(74)
Accumulated Other Comprehensive Income (Loss), Beginning Balance		(147)	(22)	117
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent before reclassifications		(15)	(133)	(146)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax		8	8	7
Accumulated Other Comprehensive Income (Loss), Period change		(7)	(125)	(139)
Accumulated Other Comprehensive Income (Loss), Ending Balance	(154)	(154)	(147)	(22)
Corporate Interest Expense [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax		4	4	5
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, before Tax		6	7	8
Vehicle Interest [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax		0	1
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, before Tax		1	1
Foreign Exchange Forward [Member] | Designated as Hedging Instrument
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	$ 83	$ 14	$ 34	$ 46