v3.26.1
GENERAL INFORMATION AND OTHER FINANCIAL DATA - RECLASSIFICATION FROM ACCUMULATED OTHER COMPREHENSIVE INCOME (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Interest expense $ 430 $ 359 $ 812 $ 792
Equity earnings (547) (393) (914) (718)
Energy-related businesses (475) (499) (881) (880)
Other income, net (67) (59) (167) (150)
Income before income taxes and equity earnings (507) (298) (1,355) (949)
Income tax expense (benefit) 112 172 177 229
Net income (942) (519) (2,092) (1,438)
Total, net of income tax and after NCI (797) (473) (1,834) (1,390)
SoCalGas        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Interest expense 104 89 201 179
Other income, net (41) 2 (84) (40)
Income before income taxes and equity earnings (108) (91) (552) (572)
Income tax expense (benefit) 0 6 20 44
Net income (108) (85) (532) (528)
Total, net of income tax and after NCI (108) (85) (532) (528)
Reclassification out of Accumulated Other Comprehensive Income        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Total, net of income tax and after NCI 3 3 1 7
Reclassification out of Accumulated Other Comprehensive Income | SoCalGas        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Total, net of income tax and after NCI 0 1 0 5
Reclassification out of Accumulated Other Comprehensive Income | Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Income before income taxes and equity earnings     (6) (3)
Income tax expense (benefit)     1 1
Net income 0 0 (5) (2)
Total, net of income tax and after NCI 1 1 (2) 0
Reclassification out of Accumulated Other Comprehensive Income | Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest | Interest rate instruments        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Interest expense (2) 0 (3) (2)
Equity earnings 1 1 0 (4)
Reclassification out of Accumulated Other Comprehensive Income | Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest | Foreign exchange instruments        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Equity earnings 1 (1) (1) 1
Energy-related businesses (1) (1) (3) 1
Other income, net 1 1 1 1
Reclassification out of Accumulated Other Comprehensive Income | Accumulated Gain (Loss), Net, Cash Flow Hedge, Noncontrolling Interest        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Earnings attributable to noncontrolling interests 1 1 3 2
Reclassification out of Accumulated Other Comprehensive Income | Amortization of actuarial loss        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Other income, net 1 1 2 3
Reclassification out of Accumulated Other Comprehensive Income | Amortization of actuarial loss | SoCalGas        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Other income, net     0 1
Reclassification out of Accumulated Other Comprehensive Income | Amortization of prior service cost        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Other income, net 1 1 1 1
Reclassification out of Accumulated Other Comprehensive Income | Amortization of prior service cost | SoCalGas        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Other income, net 0 1 0 1
Reclassification out of Accumulated Other Comprehensive Income | Settlement charges        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Other income, net     0 4
Reclassification out of Accumulated Other Comprehensive Income | Settlement charges | SoCalGas        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Other income, net     0 4
Reclassification out of Accumulated Other Comprehensive Income | Pension and PBOP        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Income before income taxes and equity earnings     3 8
Income tax expense (benefit)     0 (1)
Net income 2 2 3 7
Reclassification out of Accumulated Other Comprehensive Income | Pension and PBOP | SoCalGas        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Income before income taxes and equity earnings     0 6
Income tax expense (benefit)     0 (1)
Net income $ 0 $ 1 $ 0 $ 5