XML 54 R43.htm IDEA: XBRL DOCUMENT v3.23.3
Fair Value Measurements - Carrying Value and Fair Value of Long-Term Debt (Details) - USD ($)
$ in Millions
Sep. 30, 2023
Jun. 30, 2023
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total long-term debt with fixed interest rates (excluding commercial paper and finance leases) $ 4,098 $ 4,123
Interest rate swaps    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Derivative, notional amount 1,200 1,200
Level 2    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total long-term debt with fixed interest rates (excluding commercial paper and finance leases) $ 3,780 $ 3,844