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Investments in Unconsolidated Affiliates (Investments in Equity Method Unconsolidated Affiliates) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Investments In Unconsolidated Affiliates [Line Items]
Investments	$ 330	$ 353
Equity in earnings (losses) of unconsolidated affiliates	51	(9)	$ 113
Electric Utilities and Infrastructure
Investments In Unconsolidated Affiliates [Line Items]
Investments	0	28
Equity in earnings (losses) of unconsolidated affiliates	0	(11)	7
Gas Utilities and Infrastructure
Investments In Unconsolidated Affiliates [Line Items]
Investments	177	186
Equity in earnings (losses) of unconsolidated affiliates	15	(48)	40
Other
Investments In Unconsolidated Affiliates [Line Items]
Investments	153	139
Equity in earnings (losses) of unconsolidated affiliates	$ 36	$ 50	$ 66

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