Receivables (Receivables Sold Under The Agreement) (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Receivables [Line Items]
Fair value of deferred proceeds	$ 171	$ 216
IPL [Member]
Receivables [Line Items]
Fair value of deferred proceeds	171	216
Receivables Sold [Member] | IPL [Member]
Receivables [Line Items]
Customer accounts receivable	131	130
Unbilled utility revenues	94	98
Other receivables	2	1
Receivables sold to third party	227	229
Less: cash proceeds	45	1
Deferred proceeds	182	228
Less: allowance for expected credit losses	11	12
Fair value of deferred proceeds	$ 171	$ 216