SIGNIFICANT ACCOUNTING POLICIES AND OTHER FINANCIAL DATA - OTHER NONCONTROLLING INTERESTS (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021	Oct. 01, 2021
Noncontrolling Interest [Line Items]
Other noncontrolling interests	$ 2,121	$ 1,418
SI Partners | Sempra Infrastructure
Noncontrolling Interest [Line Items]
Ownership percentage held by noncontrolling owners	30.00%	20.00%	20.00%
Other noncontrolling interests	$ 2,060	$ 1,384
SI Partners Subsidiaries | Sempra Infrastructure
Noncontrolling Interest [Line Items]
Other noncontrolling interests	$ 61	$ 34
SI Partners Subsidiaries | Sempra Infrastructure | Minimum
Noncontrolling Interest [Line Items]
Ownership percentage held by noncontrolling owners	0.10%	0.10%
SI Partners Subsidiaries | Sempra Infrastructure | Maximum
Noncontrolling Interest [Line Items]
Ownership percentage held by noncontrolling owners	16.60%	16.60%