Exit Activities and Asset Sales (Narrative) (Details) $ in Millions	1 Months Ended
	Sep. 30, 2025 facility	Jul. 31, 2026 USD ($)	Feb. 17, 2026 USD ($)
Restructuring Cost and Reserve [Line Items]
Facilities agreed to sell \| facility	13
Duration of purchase agreement (in years)	30 years
Subsequent Event
Restructuring Cost and Reserve [Line Items]
Amount of regulatory commitment assets		$ 270
Retention Benefits \| J.H. Campbell Generating Units
Restructuring Cost and Reserve [Line Items]
Expected cost			$ 4

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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