SEMPRA - DIVESTITURES - Narrative (Details) $ in Millions, $ in Billions	1 Months Ended			3 Months Ended
	Dec. 31, 2025 USD ($) zone		Sep. 30, 2025 USD ($) appointee	Mar. 31, 2026 USD ($)	Apr. 30, 2026 USD ($)	Apr. 30, 2026 MXN ($)	Mar. 31, 2026 MXN ($)	Dec. 31, 2025 MXN ($)	Mar. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Equity	$ 38,793.0	[1]		$ 39,474.0					$ 38,202.0	$ 37,788.0
Foreign exchange instruments | Derivatives not designated as hedging instruments:
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Notional amount of derivative				612.0			$ 11.0
Foreign exchange instruments | Derivatives not designated as hedging instruments: | Subsequent Event
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Notional amount of derivative					$ 155.0	$ 2.8
KKR Partners
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Limited partnership agreement, board of managers, number of appointees | appointee			4
Post-closing additional distribution, percentage to be received			31.50%
ADIA
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Limited partnership agreement, board of managers, number of appointees | appointee			1
Sole risk project, interest remaining			10.00%
Sempra
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Limited partnership agreement, board of managers, number of appointees | appointee			2
Sole risk project, interest remaining			90.00%
SI Partners
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Required quarterly distributions, percentage of distributable cash flow			85.00%
SI Partners | Foreign exchange instruments | Derivatives not designated as hedging instruments:
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Notional amount of derivative							$ 7.5
Port Arthur LNG II | Port Arthur LNG
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Post-closing distribution, true-up payment to be received			$ 1,900.0
Port Arthur LNG II | Shared Common Facilities
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Equity ownership interest (as a percent)			50.00%
Accumulated other comprehensive income (loss)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Equity	$ (197.0)			(191.0)					$ (195.0)	$ (166.0)
Disposal Group Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income tax benefit from divestiture				$ 33.0
Disposal Group Held-for-sale | SI Partners
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Ownership percentage sold			45.00%	45.00%			45.00%
Consideration to be received			$ 9,990.0
Cash consideration to be received at closing			4,650.0
Expected consideration, receivable instrument, face amount			$ 4,140.0
Expected consideration, receivable instrument, stated rate			7.50%
Expected consideration, receivable instrument, capitalized amount			$ 4,720.0
Expected consideration, promissory notes receivable, face amount			1,200.0
Expected consideration, promissory notes receivable, capitalized amount			$ 2,290.0
Term of debt instrument (in years)			7 years 91 days
Transaction fees			$ 337.5
Development credit payable			$ 340.0
Development credit payable, period			2 years
Ticking fee receivable, percent			0.625%
Termination fee to be received if closing not completed			$ 414.0
Ownership percentage expected to be retained after sale			25.00%
Co-sale rights threshold			50.00%
Disposal Group Held-for-sale | SI Partners | KKR Partners
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Ownership percentage expected to be retained after sale			65.00%
Disposal Group Held-for-sale | SI Partners | ADIA
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Ownership percentage expected to be retained after sale			10.00%
Disposal Group Held-for-sale | SI Partners | Note Receivable, Stated Rate, Period One
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Expected consideration, promissory notes receivable, stated rate			8.50%
Disposal Group Held-for-sale | SI Partners | Note Receivable, Stated Rate, Period Two
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Expected consideration, promissory notes receivable, stated rate			10.00%
Disposal Group Held-for-sale | SI Partners | Accumulated other comprehensive income (loss)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Equity				$ (26.0)
Disposal Group Held-for-sale | Ecogas
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration to be received				500.0				$ 9.0
Income tax benefit from divestiture				3.0
Number of distribution zones | zone	3
Income tax benefit from divestiture, after noncontrolling interest				$ 2.0

[1] Derived from audited financial statements.