Basis of Presentation (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Decrease to retained earnings	$ (340,552)		$ (312,516)	$ (340,552)	$ (312,516)	$ (327,878)
Increase to income tax expense	5,286		3,114	9,160	6,459
Percentage increase in effective tax rate due to accounting standard adopted		2.00%
Retained earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Decrease to retained earnings	$ (356,924)	$ (342,414)	$ (317,359)	$ (356,924)	$ (317,359)	(332,901)	$ (306,208)	$ (296,456)
Cumulative effect of change in accounting principles
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Increase to income tax expense		$ 450
Cumulative effect of change in accounting principles | Retained earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Decrease to retained earnings						$ 161		$ (449)