Compensation and Benefit Plans (Options Data) (Details) - Stock options - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Share-based Compensation
Weighted average grant date fair value per option granted (in dollars per share)	$ 9.92	$ 7.26	$ 8.18
Fair value of options vested	$ 8	$ 3	$ 2
Value of options exercised	$ 17	$ 8	$ 9
SCE
Share-based Compensation
Weighted average grant date fair value per option granted (in dollars per share)	$ 9.92	$ 7.30	$ 8.16
Fair value of options vested	$ 5	$ 3	$ 2
Value of options exercised	$ 12	$ 6	$ 7

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- Definition

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (d)(2)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (d)(1)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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- Definition

Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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