XML 80 R54.htm IDEA: XBRL DOCUMENT v3.25.2
Income Taxes (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Income Tax Disclosure [Abstract]        
Income tax expense $ 5 $ 30 $ 123 $ 120
Reasonably possible decrease in gross unrecognized tax benefits from ongoing audits and settlement $ 2   $ 2