GENERAL INFORMATION AND OTHER FINANCIAL DATA - OTHER NONCONTROLLING INTERESTS (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Noncontrolling Interest [Line Items]
Other noncontrolling interests	$ 2,192	$ 1,418	[1]
SI Partners | Sempra Infrastructure
Noncontrolling Interest [Line Items]
Ownership percentage	30.00%	20.00%
Other noncontrolling interests	$ 2,146	$ 1,384
IEnova subsidiaries | Sempra Infrastructure
Noncontrolling Interest [Line Items]
Other noncontrolling interests	$ 46	$ 34
IEnova subsidiaries | Sempra Infrastructure | Minimum
Noncontrolling Interest [Line Items]
Ownership percentage	0.10%	0.10%
IEnova subsidiaries | Sempra Infrastructure | Maximum
Noncontrolling Interest [Line Items]
Ownership percentage	16.60%	16.60%

[1] Derived from audited financial statements.