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Stockholder Return Programs (Details) - USD ($) $ / shares in Units, $ in Millions				3 Months Ended					9 Months Ended
	Sep. 11, 2025	Jun. 12, 2025	Mar. 13, 2025	Sep. 30, 2025	Jun. 30, 2025	Mar. 31, 2025	Dec. 31, 2024	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 13, 2024
Equity, Class of Treasury Stock [Line Items]
Common stock, dividends declared (in USD per share)				$ 1.02				$ 0.88	$ 2.78	$ 2.83
Dividends on common stock				$ 987				$ 758	$ 2,986	$ 2,286
Purchase price				2,494				$ 650	7,475	$ 6,543
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	$ 0.88
Dividends on common stock				987					3,000
Dividends payable				$ 1,100					$ 1,100
Repurchases of common stock (in shares)				10,204,072					30,444,090
Average price paid per share (in USD per share)				$ 242.01					$ 243.36
Purchase price				$ 2,500					$ 7,400
Stock repurchase authorization amount				3,600					3,600
2025 Stockholder Return Program \| DT
Equity, Class of Treasury Stock [Line Items]
Dividends on common stock				514					1,600
Dividends payable				$ 595					$ 595
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