SEMPRA - CONTINGENTLY REDEEMABLE NONCONTROLLING INTEREST (Details) - USD ($) $ in Millions	1 Months Ended		12 Months Ended
	Dec. 31, 2025	Sep. 30, 2025	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Redeemable Noncontrolling Interest [Line Items]
Proceeds from investor equity subscription		$ 106	$ 106	$ 0	$ 0
Investor equity subscription		76	76
Investor equity subscription			25
Income tax expense, sale of equity transaction		5
Sale of equity interests, transaction costs		168
Contributions from CRNCI		3,166	5,248
Allocation of interests			2,115
Allocation of interests			1,746
Income tax expense, allocation of interests			369
NCI
Redeemable Noncontrolling Interest [Line Items]
Investor equity subscription		9	9
Allocation of interests			673
Sempra shareholders' equity
Redeemable Noncontrolling Interest [Line Items]
Investor equity subscription		16	16
Allocation of interests			$ 1,073
Blackstone
Redeemable Noncontrolling Interest [Line Items]
Cash received from contribution	$ 2,082	3,166
PA2 JVCo | Blackstone
Redeemable Noncontrolling Interest [Line Items]
Proceeds from sale of equity interests, subsidiary		3,400
Funding commitment in exchange for sale of equity interests		3,600
SI Partners | Blackstone
Redeemable Noncontrolling Interest [Line Items]
Disqualifying events, right to call, percentage of fair market value	75.00%		75.00%
SI Partners | PA2 JVCo
Redeemable Noncontrolling Interest [Line Items]
Funding commitment, construction project	$ 7,800	$ 7,800	$ 7,800
SI Partners | PA2 JVCo | Third-Party Sale, Proceeds Distribution, Period One
Redeemable Noncontrolling Interest [Line Items]
Third-party sale, proceeds distribution percentage			40.10%
SI Partners | PA2 JVCo | Third-Party Sale, Proceeds Distribution, Period Two
Redeemable Noncontrolling Interest [Line Items]
Third-party sale, proceeds distribution percentage			90.00%
SI Partners | PA2 JVCo | Quarterly Distribution, Earnings Allocation, Period One
Redeemable Noncontrolling Interest [Line Items]
Quarterly distribution, percentage	40.10%		40.10%
SI Partners | PA2 JVCo | Quarterly Distribution, Earnings Allocation, Period Two
Redeemable Noncontrolling Interest [Line Items]
Quarterly distribution, percentage	50.10%		50.10%
SI Partners | PA2 JVCo
Redeemable Noncontrolling Interest [Line Items]
Equity interests issued		49.90%
Ownership interest (as a percent)		50.10%
Sempra | PA LNG Phase 2 Project
Redeemable Noncontrolling Interest [Line Items]
Ownership percentage held by noncontrolling owners	35.10%		35.10%
Blackstone | PA2 JVCo
Redeemable Noncontrolling Interest [Line Items]
Funding commitment, construction project	$ 7,000		$ 7,000
Blackstone | PA2 JVCo | Third-Party Sale, Proceeds Distribution, Period One
Redeemable Noncontrolling Interest [Line Items]
Third-party sale, proceeds distribution percentage			59.90%
Blackstone | PA2 JVCo | Third-Party Sale, Proceeds Distribution, Period Two
Redeemable Noncontrolling Interest [Line Items]
Third-party sale, proceeds distribution percentage			10.00%
Blackstone | PA2 JVCo | Quarterly Distribution, Earnings Allocation, Period One
Redeemable Noncontrolling Interest [Line Items]
Quarterly distribution, percentage	59.90%		59.90%
Blackstone | PA2 JVCo | Quarterly Distribution, Earnings Allocation, Period Two
Redeemable Noncontrolling Interest [Line Items]
Quarterly distribution, percentage	49.90%		49.90%
Blackstone | PA LNG Phase 2 Project
Redeemable Noncontrolling Interest [Line Items]
Ownership percentage held by noncontrolling owners	49.90%		49.90%
KKR | PA LNG Phase 2 Project
Redeemable Noncontrolling Interest [Line Items]
Ownership percentage held by noncontrolling owners	10.00%		10.00%
ADIA | PA LNG Phase 2 Project
Redeemable Noncontrolling Interest [Line Items]
Ownership percentage held by noncontrolling owners	5.00%		5.00%
Port Arthur LNG II | Shared Common Facilities
Redeemable Noncontrolling Interest [Line Items]
Ownership percentage in equity method investee		50.00%
Port Arthur LNG II | Port Arthur LNG I
Redeemable Noncontrolling Interest [Line Items]
Post-closing distribution, true-up payment received		$ 1,900
Port Arthur LNG II | Port Arthur LNG I | Shared Common Facilities
Redeemable Noncontrolling Interest [Line Items]
Ownership percentage in equity method investee		50.00%