Receivables (Receivables Sold Under The Agreement) (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Receivables [Line Items]
Fair value of deferred proceeds	$ 212	$ 216
IPL [Member]
Receivables [Line Items]
Fair value of deferred proceeds	212	216
Receivables Sold [Member] \| IPL [Member]
Receivables [Line Items]
Customer accounts receivable	141	130
Unbilled utility revenues	81	98
Other receivables	1	1
Receivables sold to third party	223	229
Less: cash proceeds	1	1
Deferred proceeds	222	228
Less: allowance for expected credit losses	10	12
Fair value of deferred proceeds	$ 212	$ 216

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.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 20
-Name Accounting Standards Codification
-Section 40
-Paragraph 7
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481628/310-20-40-7

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481990/310-10-45-2

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