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Stockholder Return Program (Details) - USD ($) $ / shares in Units, $ in Millions					1 Months Ended	3 Months Ended				9 Months Ended
	Dec. 12, 2024	Sep. 12, 2024	Jun. 13, 2024	Mar. 14, 2024	Oct. 18, 2024	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Sep. 06, 2023
Equity, Class of Treasury Stock [Line Items]
Common stock, dividends declared (in USD per share)						$ 0.88			$ 0.65	$ 2.83	$ 0.65
Purchase price						$ 650			$ 2,702	$ 6,543	$ 11,073
2023-2024 Stockholder Return Program
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount												$ 19,000
Common stock, dividends paid (in USD per share)		$ 0.65	$ 0.65	$ 0.65
Cash dividends						758				2,300
Dividends payable						$ 1,000				$ 1,000
Repurchases of common stock (in shares)						3,179,707				39,093,340
Average price paid per share (in USD per share)						$ 202.45				$ 165.98
Purchase price						$ 644				$ 6,500
Stock repurchase authorization amount						7,300				7,300
2023-2024 Stockholder Return Program \| Subsequent Event
Equity, Class of Treasury Stock [Line Items]
Repurchases of common stock (in shares)					4,186,019
Average price paid per share (in USD per share)					$ 212.88
Purchase price					$ 891
Stock repurchase authorization amount					$ 6,400
2023-2024 Stockholder Return Program \| Forecast
Equity, Class of Treasury Stock [Line Items]
Common stock, dividends paid (in USD per share)	$ 0.88
2023-2024 Stockholder Return Program \| DT
Equity, Class of Treasury Stock [Line Items]
Cash dividends						382				1,200
Dividends payable						$ 518				$ 518
2023-2024 Stockholder Return Program \| 2024 Q1 Dividends Declared
Equity, Class of Treasury Stock [Line Items]
Common stock, dividends declared (in USD per share)								$ 0.65
2023-2024 Stockholder Return Program \| 2024 Q2 Dividends Declared
Equity, Class of Treasury Stock [Line Items]
Common stock, dividends declared (in USD per share)								$ 0.65
2023-2024 Stockholder Return Program \| 2024 Q3 Dividends Declared
Equity, Class of Treasury Stock [Line Items]
Common stock, dividends declared (in USD per share)							$ 0.65
2023-2024 Stockholder Return Program \| 2024 Q4 Dividends Declared
Equity, Class of Treasury Stock [Line Items]
Common stock, dividends declared (in USD per share)						$ 0.88