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EMPLOYEE BENEFIT PLANS - EXPECTED BENEFIT PAYMENTS (Details)
$ in Millions
Dec. 31, 2022
USD ($)
Pension Plan  
Defined Benefit Plan Disclosure [Line Items]  
2023 $ 223
2024 220
2025 216
2026 220
2027 220
2028-2032 1,062
Pension Plan | San Diego Gas and Electric Company  
Defined Benefit Plan Disclosure [Line Items]  
2023 58
2024 58
2025 59
2026 57
2027 56
2028-2032 285
Pension Plan | SoCalGas  
Defined Benefit Plan Disclosure [Line Items]  
2023 130
2024 129
2025 131
2026 132
2027 129
2028-2032 654
Other Postretirement Benefits Plan  
Defined Benefit Plan Disclosure [Line Items]  
2023 46
2024 45
2025 45
2026 47
2027 44
2028-2032 220
Other Postretirement Benefits Plan | San Diego Gas and Electric Company  
Defined Benefit Plan Disclosure [Line Items]  
2023 10
2024 10
2025 10
2026 10
2027 10
2028-2032 47
Other Postretirement Benefits Plan | SoCalGas  
Defined Benefit Plan Disclosure [Line Items]  
2023 33
2024 33
2025 32
2026 32
2027 32
2028-2032 $ 161