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Goodwill - Goodwill by Operating Segment (Detail) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2019 USD ($) | Dec. 31, 2019 USD ($) reporting_unit
Goodwill |  |
Balance at December 31, 2018 |  | $ 395,000,000
Reassignment of Goodwill |  | 0
Currency Translation Adjustments |  | 1,000,000
Balance at December 31, 2019 | $ 396,000,000 | $ 396,000,000
Impairment of goodwill and acquired intangibles | 0 |
Number of reporting units | reporting_unit |  | 3
Americas |  |
Goodwill |  |
Balance at December 31, 2018 |  | $ 253,000,000
Reassignment of Goodwill |  | 0
Currency Translation Adjustments |  | 0
Balance at December 31, 2019 | 253,000,000 | 253,000,000
International |  |
Goodwill |  |
Balance at December 31, 2018 |  | 142,000,000
Reassignment of Goodwill |  | (142,000,000)
Currency Translation Adjustments |  | 0
Balance at December 31, 2019 | 0 | 0
EMEA |  |
Goodwill |  |
Balance at December 31, 2018 |  | 0
Reassignment of Goodwill |  | 88,000,000
Currency Translation Adjustments |  | 0
Balance at December 31, 2019 | 88,000,000 | 88,000,000
APAC |  |
Goodwill |  |
Balance at December 31, 2018 |  | 0
Reassignment of Goodwill |  | 54,000,000
Currency Translation Adjustments |  | 1,000,000
Balance at December 31, 2019 | $ 55,000,000 | $ 55,000,000

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