Fair Value Measurements - Schedule of Fair Value of Debt Recorded at Carrying Value (Details) - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025
Fair Value of Long-Term Debt Recorded at Carrying Value
Carrying value	$ 40,307	$ 37,998
Fair value	37,660	35,721
SCE
Fair Value of Long-Term Debt Recorded at Carrying Value
Carrying value	34,945	33,183
Fair value	$ 32,200	$ 30,744

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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+ Details

- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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+ Details