Debt - 2025 Notes - Additional Information (Detail) - 5.30% Senior Notes due in 2025 (2025 Notes) [Member] - USD ($) $ in Millions	1 Months Ended
Aug. 31, 2021	Aug. 31, 2017
Debt Instrument [Line Items]
Debt instrument redemption description	, we fully repaid the $1.80 billion in aggregate principal of the 2025 Notes and recorded an extinguishment of debt charge of $60 million related to the redemption in Interest expense in the consolidated statement of operations.
Aggregate principal amount	$ 1,800	$ 1,800
Proceeds from convertible senior notes, net of underwriting discounts and issuance costs		$ 1,770
Extinguishment of debt related to the early repayments	$ 60

Face (par) amount of debt instrument at time of issuance.

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