Income Taxes - Additional Information (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Jan. 01, 2020
Income Taxes [Line Items]
Effective income tax rate	24.50%	26.90%	24.10%	22.20%
Increase (decrease) in provision for income tax related to change in enacted tax law				$ 4,000,000
Tax expense (benefit) from employee share-based payments	$ 3,000,000		$ 4,000,000	(12,000,000)
Increase (decrease) in provision for income tax related to non-deductible DOJ reserve		$ 6,000,000
Provisional deferred tax - GILTI			$ 0
Unrecognized tax benefits					$ 2,000,000
Impact of unrecognized tax benefits if recognized					$ 2,000,000
Period of expiration of the statute of limitations for certain jurisdictions			within the next twelve months
Jurisdictions statutes of limitations expiration period			12 months
Maximum
Income Taxes [Line Items]
Provisional deferred tax - GILTI				$ 1,000,000
Accrued interest and penalties	$ 1,000,000		$ 1,000,000
Foreign and U.S. state and local jurisdictions have statutes of limitations, in years			4 years
Minimum
Income Taxes [Line Items]
Foreign and U.S. state and local jurisdictions have statutes of limitations, in years			3 years