v3.26.1
COMPREHENSIVE INCOME (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Mar. 31, 2026
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2026
Jun. 30, 2025
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]            
Beginning balance $ 32,978 $ 32,218 $ 27,364 $ 26,986 $ 32,218 $ 26,986
TOTAL OTHER COMPREHENSIVE INCOME (LOSS) 23 (14) (33) 24 9 (9)
Ending balance 33,289 32,978 30,968 27,364 33,289 30,968
Total            
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]            
Beginning balance 22 36 21 (3) 36 (3)
Change in Fair Value Recognized in AOCI, Net of Tax 20   (36)   45 1
Amount of (Gain) Loss Reclassified from AOCI 4   4   (45) (13)
Income Tax (Expense) Benefit 1   1   (9) (3)
Reclassifications from AOCI, Net of Income Tax (Expense) Benefit 3   3   (36) (10)
TOTAL OTHER COMPREHENSIVE INCOME (LOSS) 23 (14) (33) 24 9 (9)
Ending balance 45 22 (12) 21 45 (12)
Pension and OPEB Amortization of Deferred Costs            
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]            
Beginning balance (40) (41) (104) (105) (41) (105)
Change in Fair Value Recognized in AOCI, Net of Tax 0   0   0 0
Amount of (Gain) Loss Reclassified from AOCI 2   0   3 1
Income Tax (Expense) Benefit 1   0   1 0
Reclassifications from AOCI, Net of Income Tax (Expense) Benefit 1   0   2 1
TOTAL OTHER COMPREHENSIVE INCOME (LOSS) 1   0   2 1
Ending balance (39) (40) (104) (104) (39) (104)
Amortization of Actuarial (Gains) Losses            
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]            
Amount of (Gain) Loss Reclassified from AOCI 2       3 1
Commodity | Cash Flow Hedges            
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]            
Beginning balance 63 78 124 99 78 99
Change in Fair Value Recognized in AOCI, Net of Tax 20   (36)   45 2
Amount of (Gain) Loss Reclassified from AOCI 2   5   (48) (12)
Income Tax (Expense) Benefit 0   1   (10) (3)
Reclassifications from AOCI, Net of Income Tax (Expense) Benefit 2   4   (38) (9)
TOTAL OTHER COMPREHENSIVE INCOME (LOSS) 22   (32)   7 (7)
Ending balance 85 63 92 124 85 92
Interest Rate | Cash Flow Hedges            
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]            
Beginning balance (1) (1) 1 3 (1) 3
Change in Fair Value Recognized in AOCI, Net of Tax 0   0   0 (1)
Amount of (Gain) Loss Reclassified from AOCI 0   (1)   0 (2)
Income Tax (Expense) Benefit 0   0   0 0
Reclassifications from AOCI, Net of Income Tax (Expense) Benefit 0   (1)   0 (2)
TOTAL OTHER COMPREHENSIVE INCOME (LOSS) 0   (1)   0 (3)
Ending balance $ (1) $ (1) $ 0 $ 1 $ (1) $ 0