Quarterly report [Sections 13 or 15(d)]

Shareholders' Equity - Common Stock Narrative (Details)

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Shareholders' Equity - Common Stock Narrative (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
3 Months Ended 9 Months Ended
Oct. 23, 2025
Sep. 30, 2025
Jun. 30, 2025
Mar. 31, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Class of Stock [Line Items]              
Purchase price of shares repurchased and retired   $ 5,300     $ 3,534 $ 15,123 $ 9,569
Shares reserved for future issuance (in shares)   586       586  
Dividends per share (in dollars per share)   $ 0.28 $ 0.26 $ 0.26      
Subsequent Event              
Class of Stock [Line Items]              
Dividends per share (in dollars per share) $ 0.28            
Common Stock              
Class of Stock [Line Items]              
Common stock repurchased (in shares)   108       335  
Purchase price of shares repurchased and retired   $ 5,300       $ 15,100  
Stock issued (in shares)           86  
Shares paid for tax withholding for share based compensation (in shares)           33