Investments in Unconsolidated Affiliates (Investments in Equity Method Unconsolidated Affiliates) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Investments In Unconsolidated Affiliates [Line Items]
Investments	$ 353	$ 492
Equity in (losses) earnings of unconsolidated affiliates	(9)	113	$ 113
Electric Utilities and Infrastructure
Investments In Unconsolidated Affiliates [Line Items]
Investments	28	97
Equity in (losses) earnings of unconsolidated affiliates	(11)	7	7
Gas Utilities and Infrastructure
Investments In Unconsolidated Affiliates [Line Items]
Investments	186	259
Equity in (losses) earnings of unconsolidated affiliates	(48)	40	21
Other
Investments In Unconsolidated Affiliates [Line Items]
Investments	139	136
Equity in (losses) earnings of unconsolidated affiliates	$ 50	$ 66	$ 85