Stockholders' Equity - Additional Information (Detail) shares in Millions		1 Months Ended	12 Months Ended			36 Months Ended
	Feb. 10, 2020 shares	Jun. 30, 2019 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2021 USD ($) shares	Sep. 30, 2019 shares
Equity [Abstract]
Stock repurchase program, authorized amount (up to)			$ 4,100,000,000			$ 4,100,000,000
Net activity related to restricted stock units (in shares) | shares						21.5
Share repurchased during period			1,443,000,000	$ 113,000,000	$ 62,000,000	$ 1,600,000,000
Remaining authorized repurchase amount			959,000,000			$ 959,000,000
Option premiums paid		$ 16,000,000
Outstanding options settled (in shares) | shares							0.6
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Amounts reclassified from accumulated other comprehensive income (loss)			$ (32,000,000)	$ (12,000,000)	$ (3,000,000)
Board of Directors Chairman
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Shares issued (in shares) | shares	15.0