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Equity (Common Stock - Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Equity [Abstract]            
Treasury Stock, Shares, Acquired         29,852,023 39,373,496
Treasury Stock, Value, Acquired, Cost Method, Net Of Excise Tax         $ 2,400 $ 2,800
Treasury Stock, Value, Acquired, Cost Method $ 507 $ 781 $ 1,939 $ 2,046