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Stockholders' Equity (Components Of Other Comprehensive Income) (Detail) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Equity [Abstract] |  |  |  |
Net income | $ 189 | $ 213 | $ 160 | $ 152
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Currency translation adjustments (net of tax of $(12), $(1), $(14), and $(6) respectively) | (31) | (8) | (21) | (61)
Net unrealized gain (loss) on cash flow hedges (net of tax of $2, $0, and $9, and $(3) respectively) | (4) | 0 | (25) | 8
Minimum pension liability adjustment (net of tax of $(1), $0, $(1), and $(1), respectively) | 1 | 2 | 5 | 5
Other comprehensive income (loss) | (34) | (6) | (41) | (48)
Total comprehensive income (loss) | 155 | 207 | 119 | 104
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax |  |  | (2) | (1)
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax | (12) | (1) | (14) | (6)
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax | 2 | 0 | 9 | (3)
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, Tax | (1) | 0 | (1) | (1)
Corporate Interest Expense [Member] |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, before Tax | 1 | 2 | 4 | 2
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax | 0 | 1 | 2 | 1
Selling, General and Administrative Expenses [Member] |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, before Tax | 2 | 2 | 6 | 6
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, after Tax | $ 1 | $ 2 | $ 4 | $ 4

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