Utility Rate Regulation - Other (Details) - Unaffiliated Third Party Entity [Member] - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
PPL Electric [Member]
Purchases Of Accounts Receivable [Line Items]
Accounts Receivable, Purchase	$ 439	$ 404	$ 1,300	$ 1,200
Rhode Island Energy
Purchases Of Accounts Receivable [Line Items]
Accounts Receivable, Purchase	90	80	245	234
PPL Electric Utilities Corp [Member]
Purchases Of Accounts Receivable [Line Items]
Accounts Receivable, Purchase	$ 439	$ 404	$ 1,300	$ 1,200