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Stockholders' Equity -Share Repurchase Activity (Details) - USD ($) shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Subsidiary, Sale of Stock [Line Items]
Common stock repurchases	$ 3,096	$ 297	$ 626
Employee Stock Compensation Plan
Subsidiary, Sale of Stock [Line Items]
Income tax withholding (in shares)	1,213	1,379	2,045
Income tax withholding	$ 102	$ 97	$ 126
Common Stock
Subsidiary, Sale of Stock [Line Items]
Share buybacks (in shares)	35,655	2,402	8,672
Common stock repurchases (in shares)	36,868	3,781	10,717
Share buybacks	$ 2,994	$ 200	$ 500
Common stock repurchases	$ 3,096	$ 297	$ 626

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