v3.26.1
Derivative Instruments and Hedging Activities - Schedule of Fair Value of Derivative Assets and Liabilities (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Sep. 30, 2025
Jun. 30, 2025
Derivative assets:      
Total derivative assets — gross $ 112 $ 97 $ 114
Gross amounts offset in the balance sheet (68) (65) (77)
Cash collateral received (1) (2) (21)
Total derivative assets — net 43 30 16
Derivative liabilities:      
Total derivative liabilities — gross (111) (164) (197)
Gross amounts offset in the balance sheet 68 65 77
Cash collateral pledged 0 19 38
Total derivative liabilities — net (43) (80) (82)
Foreign currency contracts      
Derivative assets:      
Total derivative assets — gross 14 1  
Derivative liabilities:      
Total derivative liabilities — gross (4) (19) (25)
Interest rate contracts      
Derivative assets:      
Total derivative assets — gross 5   1
Derivative liabilities:      
Total derivative liabilities — gross (2) (12) (14)
Commodity contracts      
Derivative assets:      
Total derivative assets — gross 93 96 113
Derivative liabilities:      
Total derivative liabilities — gross (105) (133) (158)
Derivatives designated as hedging instruments:      
Derivative assets:      
Total derivative assets — gross 11 1 1
Derivatives designated as hedging instruments: | Foreign currency contracts      
Derivative assets:      
Total derivative assets — gross 6 1 0
Derivatives designated as hedging instruments: | Interest rate contracts      
Derivative assets:      
Total derivative assets — gross 5 0 1
Derivative liabilities:      
Total derivative liabilities — gross (2) (12) (14)
Derivatives designated as hedging instruments: | Commodity contracts      
Derivative assets:      
Total derivative assets — gross 0 3 3
Derivative liabilities:      
Total derivative liabilities — gross (5) (8) (2)
Derivatives not designated as hedging instruments:      
Derivative assets:      
Total derivative assets — gross 101 93 110
Derivative liabilities:      
Total derivative liabilities — gross (104) (144) (181)
Derivatives not designated as hedging instruments: | Foreign currency contracts      
Derivative assets:      
Total derivative assets — gross 8 0 0
Derivative liabilities:      
Total derivative liabilities — gross (4) (19) (25)
Derivatives not designated as hedging instruments: | Commodity contracts      
Derivative assets:      
Total derivative assets — gross 93 93 110
Derivative liabilities:      
Total derivative liabilities — gross $ (100) $ (125) $ (156)