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Stockholder Return Programs (Details) - USD ($) $ / shares in Units, $ in Millions				1 Months Ended	3 Months Ended				6 Months Ended
	Sep. 11, 2025	Jun. 12, 2025	Mar. 13, 2025	Jul. 18, 2025	Jun. 30, 2025	Mar. 31, 2025	Dec. 31, 2024	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 13, 2024
Equity, Class of Treasury Stock [Line Items]
Common stock, dividends declared (in USD per share)					$ 0.88			$ 0.65	$ 1.76	$ 1.95
Dividends on common stock					$ 996			$ 759	$ 1,999	$ 1,528
Purchase price					2,486			$ 2,289	4,981	$ 5,893
2025 Stockholder Return Program
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount											$ 14,000
Common stock, dividends paid (in USD per share)		$ 0.88	$ 0.88
Dividends on common stock					996				2,000
Dividends payable					$ 986				$ 986
Repurchases of common stock (in shares)					10,148,791				20,240,018
Average price paid per share (in USD per share)					$ 243.32				$ 244.04
Purchase price					$ 2,500				$ 4,900
Stock repurchase authorization amount					7,100				7,100
2025 Stockholder Return Program \| Forecast
Equity, Class of Treasury Stock [Line Items]
Common stock, dividends paid (in USD per share)	$ 0.88
2025 Stockholder Return Program \| Subsequent Event
Equity, Class of Treasury Stock [Line Items]
Repurchases of common stock (in shares)				2,032,767
Average price paid per share (in USD per share)				$ 232.16
Purchase price				$ 472
Stock repurchase authorization amount				$ 6,600
2025 Stockholder Return Program \| DT
Equity, Class of Treasury Stock [Line Items]
Dividends on common stock					518				1,000
Dividends payable					$ 518				$ 518
2025 Stockholder Return Program \| 2024 Q4 Dividends Declared
Equity, Class of Treasury Stock [Line Items]
Common stock, dividends declared (in USD per share)							$ 0.88
2025 Stockholder Return Program \| 2025 Q1 Dividends Declared
Equity, Class of Treasury Stock [Line Items]
Common stock, dividends declared (in USD per share)						$ 0.88
2025 Stockholder Return Program \| 2025 Q2 Dividends Declared
Equity, Class of Treasury Stock [Line Items]
Common stock, dividends declared (in USD per share)					$ 0.88