Earnings Per Share - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Oct. 17, 2023
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Number of shares repurchased (in shares)	112,000,000	151,000,000	90,000,000
Amount of shares repurchased	$ 3,482	$ 4,731	$ 2,886
Common stock dividends, per share (in dollars per share)	$ 0.44	$ 0.40	$ 0.37
Share Repurchase Program October 2023
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Share repurchase program authorized amount				$ 5,000
Share repurchase program, remaining amount	$ 4,800
Structured Share Repurchase Program
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Number of shares repurchased (in shares)			12,000,000
Amount of shares repurchased			$ 378
Share repurchase agreement outstanding	0	0