Line of Credit Facility, Accordion Feature

No definition available.

Name:	ipl_LineOfCreditFacilityAccordionFeature
Namespace Prefix:	ipl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Maximum Authorized Amount Of Debt To Be Issued

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

Preferred Stock Issuable in Lieu of Portion of Maximum Authorized Amount of Debt

+ References

No definition available.

+ Details

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- Definition

Secured Debt Gross

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

Face (par) amount of debt instrument at time of issuance.

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+ Details

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Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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- 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.

+ References

No definition available.

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Balance Type:	na
Period Type:	duration

- Definition

Percentage of principal amount of debt redeemed.

+ References

No definition available.

+ Details

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- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

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Period Type:	instant

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

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Period Type:	instant

- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Period Type:	instant

- Definition

Amount of cash outflow for cost from early extinguishment and prepayment of debt. Includes, but is not limited to, third-party cost, premium paid, and other fee paid to lender directly for debt extinguishment or debt prepayment. Excludes accrued interest.

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Period Type:	duration

- Definition

The cash inflow from additional borrowings, net of cash paid to third parties in connection with debt origination.

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- Definition

Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

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+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

For the form of debt having an initial term of less than one year or less than the normal operating cycle, if longer, the maximum amount borrowed at any time during the period.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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Period Type:	duration

- Details

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Debt (Narrative) (Details) - USD ($)	12 Months Ended
Debt (Narrative) (Details) - USD ($)	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Apr. 14, 2020	May 31, 2014
Debt Instrument [Line Items]
Secured debt gross	$ 2,683,800,000
Aggregate principal amount	2,743,800,000	$ 2,758,800,000
Net proceeds from debt issuance	95,000,000	564,568,000	$ 0
Long-term debt	2,652,186,000	2,651,185,000
Loss on early extinguishment of debt	0	2,424,000	0
Maximum borrowing capacity	750,000,000				$ 250,000,000
Line of Credit Facility, Remaining Borrowing Capacity	500,000,000
Maximum amount of short-term indebtedness outstanding	500,000,000
Authorized amount of debt to be issued	740,000,000
Preferred Stock Issuable in Lieu of Portion of Maximum Authorized Amount of Debt	65,000,000
Letter of Credit [Member]
Debt Instrument [Line Items]
Line of credit facility, accordion feature					150,000,000
Line of Credit [Member]
Debt Instrument [Line Items]
Long-term Line of Credit	60,000,000	75,000,000
Indianapolis Power And Light Company
Debt Instrument [Line Items]
Secured debt gross	1,803,800,000
Aggregate principal amount	1,863,800,000	1,878,800,000
Net proceeds from debt issuance	95,000,000	90,000,000	0
Long-term debt	1,780,032,000	1,780,410,000
Maximum borrowing capacity	750,000,000				250,000,000
Line of Credit Facility, Remaining Borrowing Capacity	500,000,000
Maximum amount of short-term indebtedness outstanding	500,000,000
Authorized amount of debt to be issued	740,000,000
Preferred Stock Issuable in Lieu of Portion of Maximum Authorized Amount of Debt	65,000,000
First mortgage bonds	$ 1,780,032,000	$ 1,780,410,000
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed	100.00%	100.00%
Indianapolis Power And Light Company \| Letter of Credit [Member]
Debt Instrument [Line Items]
Line of credit facility, accordion feature					$ 150,000,000
Indianapolis Power And Light Company \| Line of Credit [Member]
Debt Instrument [Line Items]
Long-term Line of Credit	$ 60,000,000	$ 75,000,000
Ipalco Enterprises, Inc. [Member]
Debt Instrument [Line Items]
Aggregate principal amount	880,000,000	880,000,000
Net proceeds from debt issuance	0	474,568,000	0
Early tender premium	0	(2,415,000)	0
Long-term debt	872,154,000	870,775,000
Loss on early extinguishment of debt	$ 0	2,415,000	0
First Mortgage Bond Seven [Member] \| Indianapolis Power And Light Company
Debt Instrument [Line Items]
Debt instrument, stated interest rate	3.875%
First mortgage bonds	$ 0	55,000,000
First Mortgage Bonds [Member] \| Indianapolis Power And Light Company
Debt Instrument [Line Items]
Secured debt gross	$ 1,803,800,000		$ 1,803,800,000
FMB Twenty [Member] \| Indianapolis Power And Light Company
Debt Instrument [Line Items]
Debt instrument, stated interest rate	4.05%
First mortgage bonds	$ 350,000,000	350,000,000
First Mortgage Bond Nine [Member] \| Indianapolis Power And Light Company
Debt Instrument [Line Items]
Debt instrument, stated interest rate	3.125%
First mortgage bonds	$ 40,000,000	40,000,000
First Mortgage Bond 4.65% Due June 2043 [Member] \| Indianapolis Power And Light Company
Debt Instrument [Line Items]
Debt instrument, stated interest rate	4.65%
First mortgage bonds	$ 170,000,000	170,000,000
First Mortgage Bond 4.70% Due September 2045 [Member] \| Indianapolis Power And Light Company
Debt Instrument [Line Items]
Debt instrument, stated interest rate	4.50%
First mortgage bonds	$ 130,000,000	130,000,000
First Mortgage Bond Nineteen [Member] \| Indianapolis Power And Light Company
Debt Instrument [Line Items]
Debt instrument, stated interest rate	4.70%
First mortgage bonds	$ 260,000,000	260,000,000
Three Point Seven Zero Percent Senior Secured Notes [Domain] \| Ipalco Enterprises, Inc. [Member]
Debt Instrument [Line Items]
Debt instrument, stated interest rate	3.70%
Long-term debt	$ 405,000,000	405,000,000
FMB Twenty - one [Member] \| Indianapolis Power And Light Company
Debt Instrument [Line Items]
Debt instrument, stated interest rate	4.875%
First mortgage bonds	$ 105,000,000	105,000,000
Bank Term Loan Maturing July 2020 [Member] \| Ipalco Enterprises, Inc. [Member]
Debt Instrument [Line Items]
Long-term debt				$ 65,000,000
First Mortgage Bond Eight [Member] \| Indianapolis Power And Light Company
Debt Instrument [Line Items]
Debt instrument, stated interest rate	3.875%
First mortgage bonds	$ 0	40,000,000
First Mortgage Bond Thirteen [Member] \| Indianapolis Power And Light Company
Debt Instrument [Line Items]
Debt instrument, stated interest rate	6.60%
First mortgage bonds	$ 100,000,000	100,000,000
First Mortgage Bond Fourteen [Member] \| Indianapolis Power And Light Company
Debt Instrument [Line Items]
Debt instrument, stated interest rate	6.05%
First mortgage bonds	$ 158,800,000	158,800,000
First Mortgage Bond Fifteen [Member] \| Indianapolis Power And Light Company
Debt Instrument [Line Items]
Debt instrument, stated interest rate	6.60%
First mortgage bonds	$ 165,000,000	165,000,000
First Mortgage Bond Sixteen [Member] \| Indianapolis Power And Light Company
Debt Instrument [Line Items]
Debt instrument, stated interest rate	4.875%
First mortgage bonds	$ 140,000,000	$ 140,000,000
FMB Twenty - three \| Indianapolis Power And Light Company
Debt Instrument [Line Items]
Debt instrument, stated interest rate	0.95%	0.95%
First mortgage bonds	$ 60,000,000	$ 60,000,000
Three Point Eight Seven Five Percent First Mortgage Bonds \| Indianapolis Power And Light Company
Debt Instrument [Line Items]
Debt instrument, stated interest rate	9500000000.00%
Aggregated Principal Amount of First Mortgage Bonds to the Indiana Finance Authority in Two Series \| Indianapolis Power And Light Company
Debt Instrument [Line Items]
First mortgage bonds	$ 95,000,000	90,000,000
Aggregated Principal Amount of Environmental Facilities Refunding Revenue Bonds Series 2021 A&B \| Indianapolis Power And Light Company
Debt Instrument [Line Items]
First mortgage bonds	$ 95,000,000
FMB Twenty - Four \| Indianapolis Power And Light Company
Debt Instrument [Line Items]
Debt instrument, stated interest rate	1.40%
First mortgage bonds	$ 55,000,000	0
FMB Twenty - five \| Indianapolis Power And Light Company
Debt Instrument [Line Items]
Debt instrument, stated interest rate	0.65%
First mortgage bonds	$ 40,000,000	$ 0
FMB Twenty - two \| Indianapolis Power And Light Company
Debt Instrument [Line Items]
Debt instrument, stated interest rate	0.75%	0.75%
First mortgage bonds	$ 30,000,000	$ 30,000,000
Aggregated Principal Amount of Environmental Facilities Refunding Revenue Bonds Series 2020 A&B \| Indianapolis Power And Light Company
Debt Instrument [Line Items]
First mortgage bonds		90,000,000
Aggregated Principal Amount of Environmental Facilities Refunding Revenue Bonds Series 2015 A&B \| Indianapolis Power And Light Company
Debt Instrument [Line Items]
First mortgage bonds		$ 90,000,000