Balance Sheet Components - Other Property and Investments-Net and Other Non-current Assets (Details) - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024
Balance Sheet Related Disclosures [Abstract]
Equity investments	$ 155	$ 157
Operating lease ROU assets	$ 65	$ 66
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Total	Total
Finance lease ROU assets	$ 32	$ 33
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Total	Total
Non-utility property	$ 33	$ 33
Notes receivable	10	16
Long-term prepaid license fees	16	18
Pension asset	38	35
Investment in affiliated trust	12	12
Deferred compensation assets	9	9
Other	26	20
Total	$ 396	$ 399