Equity - Dividends and Stock Repurchases (Details) $ / shares in Units, $ in Millions	1 Months Ended		3 Months Ended		9 Months Ended
	Feb. 29, 2024 shares	Feb. 28, 2023 shares	Sep. 30, 2024 $ / shares shares	Sep. 30, 2023 $ / shares	Sep. 30, 2024 USD ($) transaction $ / shares shares	Sep. 30, 2023 USD ($) $ / shares shares	Jun. 22, 2022 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividends declared per common share (USD per share) | $ / shares			$ 0.91	$ 0.90	$ 2.73	$ 2.70
Remaining shares available under repurchase program (shares)			14,600,000		14,600,000
ARS agreement transactions | transaction					2
Shares delivered and purchased (shares)					4,100,000	5,800,000
Payments for repurchase of stock | $					$ 2,001	$ 2,001
Uncapped ASR, November 13, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares delivered and purchased (shares)	200,000
Uncapped ASR, December 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares delivered and purchased (shares)		400,000
Stock Repurchases
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock repurchased during period (shares)					3,800,000	5,400,000
Payments for repurchase of stock | $					$ 2,000	$ 2,000
2022 Repurchase Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized for repurchase (shares)							30,000,000
Shares authorized for repurchase, compared to total common stock outstanding (as a percent)							9.00%