Equity (Share Repurchases) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Equity [Abstract]
Number of shares repurchased		16	20	44	71
Cash paid for shares repurchased		$ 2,701	$ 2,819	$ 7,815	$ 9,067
Average cost per share	[1]	$ 170.99	$ 139.84	$ 175.20	$ 127.09

[1] The average cost per share includes excise tax on share repurchases resulting from the Inflation Reduction Act of 2022, but the excise tax does not reduce the remaining share repurchase authorization.