v3.25.1
Fair Value Measurements (Financial Instruments Not Recorded at Fair Value) (Details) - USD ($)
$ in Millions
Mar. 31, 2025
Mar. 31, 2024
Related Party Transaction [Line Items]    
Long-term debt, carrying value $ 5,790 $ 4,876
Debt Instrument, Fair Value Disclosure 5,652 4,649
Related Parties    
Related Party Transaction [Line Items]    
Other long–term assets 3 3
Other Assets, Fair Value Disclosure $ 3 $ 3