Accumulated Other Comprehensive Income (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Currency Translation Adjustment, Beginning Balance	$ (3)	$ 71	$ (39)
Currency translation adjustments, net of tax of $(6), $(8) and $33, respectively	12	(81)	110
Currency Translation Adjustment, Ending Balance	9	(3)	71
Net Unrealized Gains (Losses) on Cash Flow Hedges, Beginning Balance	2	5	2
Net unrealized holding gains (losses), net of tax of $7, $0, and $0, respectively	(20)	(2)	1
Net Unrealized Gains (Losses) on Cash Flow Hedges, Period change		(4)	3
Net Unrealized Gains (Losses) on Cash Flow Hedges, Ending Balance	(20)	2	5
Net Unrealized Gains (Losses) on Available- For-Sale Securities, Beginning Balance	0	2	1
Net unrealized gains (losses) on available-for-sale securities, net of tax of $0, $0, and $(1), respectively	0	0	1
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	0	0	1
Net Unrealized Gains (Losses) on Available- For-Sale Securities, Ending Balance	0	0	2
Minimum Pension Liability Adjustment, Beginning Balance	(132)	(102)	(118)
Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, after Tax	(20)	(23)	11
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax	6	5	5
Minimum Pension Liability Adjustment, Period change	(14)	(18)	16
Minimum Pension Liability Adjustment, Ending Balance	(146)	(132)	(102)
Accumulated Other Comprehensive Income (Loss), Beginning Balance	(133)	(24)	(154)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent before reclassifications	(28)	(106)	123
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	3	3	7
Accumulated Other Comprehensive Income (Loss), Period change	(25)	(103)	130
Accumulated Other Comprehensive Income (Loss), Ending Balance	(157)	(133)	(24)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	(3)	(2)	2
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax	8	7	8
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	3	2	2
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, before Tax	4	3	4
Foreign Exchange Forward [Member] | Designated as Hedging Instrument
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	17	24	(50)
Derivatives used in Net Investment Hedge, Net of Tax	81
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets		0	7
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets		1	1
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets		0	(2)
Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets		0	(12)
AOCI Attributable to Parent [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets		1	(6)
Adjustments for New Accounting Pronouncement [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Currency Translation Adjustment, Beginning Balance	(3)	78
Currency Translation Adjustment, Ending Balance		(3)	78
Net Unrealized Gains (Losses) on Cash Flow Hedges, Beginning Balance	3	6
Net Unrealized Gains (Losses) on Cash Flow Hedges, Ending Balance		3	6
Net Unrealized Gains (Losses) on Available- For-Sale Securities, Beginning Balance	0	0
Net Unrealized Gains (Losses) on Available- For-Sale Securities, Ending Balance		0	0
Minimum Pension Liability Adjustment, Beginning Balance	132	(114)
Minimum Pension Liability Adjustment, Ending Balance		132	(114)
Accumulated Other Comprehensive Income (Loss), Beginning Balance	$ (132)	(30)
Accumulated Other Comprehensive Income (Loss), Ending Balance		$ (132)	$ (30)