Stockholders' Equity - Share Repurchase Activity (Details) - USD ($) shares in Thousands, $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2023	Jun. 30, 2022
Subsidiary, Sale of Stock [Line Items]
Common stock repurchases	$ 408	$ 423	$ 349	$ 71
Stock repurchases, excise tax accrual	$ 3				$ 3
Employee Stock Compensation Plan
Subsidiary, Sale of Stock [Line Items]
Income tax withholding (in shares)	71		61		767	907
Income tax withholding	$ 5		$ 5		$ 51	$ 76
Common Stock
Subsidiary, Sale of Stock [Line Items]
Share buybacks (in shares)	6,028		4,188		10,880	4,188
Common stock repurchases (in shares)	6,099		4,249		11,647	5,095
Share buybacks	$ 400		$ 344		$ 777	$ 344
Common stock repurchases	$ 405		$ 349		$ 828	$ 420

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Treasury Stock, Shares, Acquired, Excluding Shares Withheld For Tax Withholding Obligation

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Treasury Stock, Value, Acquired, Cost Method, Excluding Shares Withheld For Tax Purposes

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Amount of decrease to equity for grantee's tax withholding obligation for award under share-based payment arrangement.

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Number of shares used to settle grantee's tax withholding obligation for award under share-based payment arrangement.

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Number of shares that have been repurchased during the period and are being held in treasury.

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Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

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