Stockholders' Equity, Comprehensive Income and Share-Based Compensation - Additional Information (Details) - USD ($) $ / shares in Units, shares in Millions	1 Months Ended	3 Months Ended
	Dec. 31, 2021	Jan. 30, 2022	Jan. 31, 2021	Mar. 31, 2021
Equity [Line Items]
Amount authorized by board of directors to repurchase shares				$ 7,500,000,000
Remaining authorized repurchase amount		$ 3,200,000,000
Dividends declared per share (in dollars per share)	$ 0.24	$ 0.24	$ 0.22
Payments of dividends		$ 214,000,000	$ 201,000,000
Employee Stock
Equity [Line Items]
Performance of total shareholder return		100.00%
Total unrecognized compensation expense		$ 786,000,000
Weighted average period for unrecognized compensation expense to be recognized (in years)		3 years 1 month 6 days
Performance Shares
Equity [Line Items]
Additional performance-based awards to be earned upon certain levels of achievement (in shares)		0.9
Award measurement metric relative weight		50.00%
Award measurement period		3 years
Performance Shares | Minimum
Equity [Line Items]
Award vesting rights, percentage of target amount		0.00%
Performance Shares | Maximum
Equity [Line Items]
Award vesting rights, percentage of target amount		200.00%
Employee Stock Incentive Plan
Equity [Line Items]
Number of shares available for grant (in shares)		31.0
Employee Stock Purchase Plan
Equity [Line Items]
Number of shares available for grant (in shares)		16.0
Employee stock purchase plan purchase period		6 months
Employee Stock Purchase Plan | Employee Stock
Equity [Line Items]
Purchase price of common stock		85.00%