DEBT AND CREDIT FACILITIES - SCHEDULE OF CALLABLE LONG-TERM DEBT (Details) $ in Millions	Dec. 31, 2022 USD ($)
Schedule Of Callable Long-term Debt [Line Items]
Callable long-term debt, not subject to make-whole provisions	$ 2,992
Callable long-term debt, subject to make-whole provisions	21,516
San Diego Gas and Electric Company
Schedule Of Callable Long-term Debt [Line Items]
Callable long-term debt, not subject to make-whole provisions	400
Callable long-term debt, subject to make-whole provisions	7,400
SoCalGas
Schedule Of Callable Long-term Debt [Line Items]
Callable long-term debt, not subject to make-whole provisions	304
Callable long-term debt, subject to make-whole provisions	5,750
Other Sempra
Schedule Of Callable Long-term Debt [Line Items]
Callable long-term debt, not subject to make-whole provisions	2,288
Callable long-term debt, subject to make-whole provisions	$ 8,366