v3.26.1
Derivatives and Other Financial Instruments - Schedule of Detail for Level 1, 2 and 3 Derivatives (Detail) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]          
Derivative Assets Current     $ 83   $ 49
Derivative Liabilities Current     494   467
Derivative Assets Noncurrent     25   34
Derivative Liabilities Noncurrent     880   1,134
Unrealized gain (loss) recognized in Other comprehensive income (loss) $ (16) $ (213) (58) $ (128)  
Realized gain (loss) reclassified from Accumulated other comprehensive loss to earnings (331) (175) (190) (80)  
Level 1 Derivative Instruments [Member]          
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]          
Derivative Assets     17   48
Derivative Liabilities     2   1
Level 1 and 2 Derivative Instruments [Member]          
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]          
Derivative Assets     75   15
Derivative Liabilities     150   246
Unrealized gain (loss) recognized in Other comprehensive income (loss) 91 (22) 41 (46)  
Realized gain (loss) reclassified from Accumulated other comprehensive loss to earnings (70) (4) (45) (2)  
Level 3 Derivative Instruments [Member]          
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]          
Derivative Assets     16   20
Derivative Liabilities     1,222   1,354
Unrealized gain (loss) recognized in Other comprehensive income (loss) (107) (191) (99) (82)  
Realized gain (loss) reclassified from Accumulated other comprehensive loss to earnings $ (261) $ (171) (145) $ (78)  
Level 1 and 3 Derivative Instruments [Member]          
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]          
Derivative Assets     108   83
Derivative Liabilities     1,374   1,601
Derivative Assets Current     83   49
Derivative Liabilities Current     494   467
Derivative Assets Noncurrent     25   34
Derivative Liabilities Noncurrent     $ 880   $ 1,134