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Revenue - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2021 USD ($) Customer	Dec. 31, 2020 USD ($) Customer	Dec. 31, 2019 USD ($) Customer
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Impairment losses on contract assets	$ 0	$ 0	$ 0
Allowance for credit losses	$ 89,000,000	$ 102,000,000
Customers [Member] | Customer Concentration Risk [Member] | Revenue [Member]
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Concentration risk, number of customers | Customer	0	0	0
Concentration risk, percentage	10.00%	10.00%	10.00%

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Concentration risk number of customers.

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- Definition

Amount of allowance for credit loss on accounts receivable.

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Amount of impairment loss for asset recognized from cost incurred to obtain or fulfill contract with customer.

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