Debt Instrument, Convertible Notes, Conversion Premium Percent

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- Definition

Debt Instrument, Covenant, Debt To Capitalization Ratio

+ References

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- Definition

Debt Instrument, Interest Payments, Number Of Deferral Payments Allowed

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- Definition

Debt Instrument, Number Of Debt Issuances

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- Definition

Debt Instrument, Series Of Bond Issuance

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- Definition

Public Utilities, Maturity Term Over Which Financings Require Regulator Approval

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- Definition

Sale Of Stock, Distribution Agreement, Aggregate Value

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

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- Definition

The price per share of the conversion feature embedded in the debt instrument.

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- Definition

Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

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Threshold period of specified consecutive trading days within which common stock price to conversion price of convertible debt instrument must exceed threshold percentage for specified number of trading days to trigger conversion feature.

+ References

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Minimum percentage of common stock price to conversion price of convertible debt instruments to determine eligibility of conversion.

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No definition available.

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Threshold number of specified trading days that common stock price to conversion price of convertible debt instruments must exceed threshold percentage within a specified consecutive trading period to trigger conversion feature.

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- Definition

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

+ References

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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

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- Definition

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

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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.

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Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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The effective interest rate at the end of the reporting period.

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Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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Amount of cash outflow for short-term and long-term debt. Excludes payment of lease obligation.

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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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The cash outflow to repay long-term debt that is not secured by collateral. Excludes repayments of tax exempt unsecured debt.

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The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

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Financing - Financing Activities (Details)							1 Months Ended	3 Months Ended	6 Months Ended
Financing - Financing Activities (Details)	Jun. 21, 2024 USD ($)	Jun. 10, 2024 USD ($) d deferralPayment $ / shares	Jun. 04, 2024	May 06, 2024 USD ($)	May 15, 2023 USD ($)	Nov. 10, 2022 USD ($)	Jul. 31, 2024 USD ($)	Jun. 30, 2024 USD ($) $ / shares shares	Jun. 30, 2024 USD ($) $ / shares	Jun. 30, 2023 USD ($)	Jul. 01, 2024 USD ($)	Jun. 03, 2024 USD ($)	May 10, 2024 USD ($)	Mar. 28, 2024 USD ($) debtInstrument	Dec. 31, 2023 USD ($)	Jun. 01, 2023 USD ($)	May 16, 2023 USD ($)	Apr. 28, 2023 USD ($) bond debtInstrument	Dec. 31, 2022 USD ($)
Debt Instrument [Line Items]
Repayments of long-term debt									$ 737,000,000	$ 685,000,000
At-The-Market
Debt Instrument [Line Items]
Distribution agreement				$ 100,000,000		$ 200,000,000
2024 Forward Sale Agreements
Debt Instrument [Line Items]
Number of shares issued in transaction (in shares) \| shares								262,025
Sale of stock, price per share (in dollars per share) \| $ / shares								$ 37.77	$ 37.77
PNM
Debt Instrument [Line Items]
Maturity term over which financings require regulator approval (more than)									18 months
Repayments of long-term debt									$ 198,000,000	185,000,000
Texas-New Mexico Power Company \| FMB Notes Due July 2024 \| Subsequent Event \| Senior Unsecured Noted, Pollution Control Revenue Bonds
Debt Instrument [Line Items]
Stated interest rate							4.03%
Repayments of unsecured debt							$ 80,000,000
Line of credit
Debt Instrument [Line Items]
Ratio of debt to capital (less than or equal to)									70.00%
Line of credit \| PNMR 2021 Delayed-Draw Term Loan \| Revolving credit facility
Debt Instrument [Line Items]
Repayments of debt	$ 449,000,000
Line of credit \| PNM 2023 Term Loan \| Revolving credit facility
Debt Instrument [Line Items]
Repayments of debt	90,000,000
Line of credit \| PNM and TNMP
Debt Instrument [Line Items]
Ratio of debt to capital (less than or equal to)									65.00%
Line of credit \| PNM \| PNM 2024 Term Loan, Due November 2025 \| Secured Debt
Debt Instrument [Line Items]
Aggregate principal amount													$ 200,000,000
Variable interest rate								6.33%	6.33%
Unsecured Debt \| PNM, Due May 2026
Debt Instrument [Line Items]
Aggregate principal amount																	$ 650,000,000
Unsecured Debt \| PNM 3.15% Senior Unsecured Notes, Due May 2023
Debt Instrument [Line Items]
Stated interest rate																			3.15%
Repayments of long-term debt					$ 55,000,000
Unsecured Debt \| PNM \| PNM 3.15% Senior Unsecured Notes, Due May 2023
Debt Instrument [Line Items]
Aggregate principal amount																			$ 55,000,000
Unsecured Debt \| PNM \| PNM 2023 Note Purchase Agreement
Debt Instrument [Line Items]
Aggregate principal amount																		$ 200,000,000
Number of debt issuances \| debtInstrument																		2
Unsecured Debt \| PNM \| PNM 2023 SUNs At 5.1%, Due April 28, 2035
Debt Instrument [Line Items]
Aggregate principal amount																		$ 150,000,000.0
Stated interest rate																		5.51%
Unsecured Debt \| PNM \| PNM 2023 SUNs At 5.92%, Due April 28, 2053
Debt Instrument [Line Items]
Aggregate principal amount																		$ 50,000,000
Stated interest rate																		5.92%
Unsecured Debt \| Texas-New Mexico Power Company \| TNMP 2024 Bond Purchase Agreement
Debt Instrument [Line Items]
Aggregate principal amount														$ 285,000,000
Number of debt issuances \| debtInstrument														4
Unsecured Debt \| Texas-New Mexico Power Company \| TNMP 2024 Bond, 5.26%, Due March 28, 2029
Debt Instrument [Line Items]
Aggregate principal amount														$ 32,000,000
Stated interest rate														5.26%
Unsecured Debt \| Texas-New Mexico Power Company \| TNMP 2024 Bond, 5.55%, Due March 28, 2036
Debt Instrument [Line Items]
Aggregate principal amount														$ 85,000,000
Stated interest rate														5.55%
Unsecured Debt \| Texas-New Mexico Power Company \| TNMP 2024 Bond, 5.65% \| Subsequent Event
Debt Instrument [Line Items]
Aggregate principal amount											$ 40,000,000
Stated interest rate											5.65%
Unsecured Debt \| Texas-New Mexico Power Company \| TNMP 2024 Bond, 5.79% \| Subsequent Event
Debt Instrument [Line Items]
Aggregate principal amount											$ 128,000,000
Stated interest rate											5.79%
Convertible Debt \| Convertible Notes
Debt Instrument [Line Items]
Aggregate principal amount		$ 500,000,000
Stated interest rate		5.75%
Conversion ratio			0.0224911
Debt instrument, convertible, conversion price (in dollars per share) \| $ / shares		$ 44.46
Conversion premium percent			17.50%
Number of deferral payments allowed \| deferralPayment		20
Convertible Debt \| Convertible Notes \| Debt Conversion Terms One
Debt Instrument [Line Items]
Debt instrument, redemption price, percentage		100.00%
Convertible Debt \| Convertible Notes \| Debt Conversion Terms Two
Debt Instrument [Line Items]
Debt instrument, redemption price, percentage		100.00%
Threshold percentage of stock price trigger		130.00%
Threshold trading days \| d		20
Threshold consecutive trading days \| d		30
Convertible Debt \| Convertible Notes - Option
Debt Instrument [Line Items]
Aggregate principal amount	$ 50,000,000
Bonds \| PNM 2024 Term Loan, Due November 2025
Debt Instrument [Line Items]
Variable interest rate								6.33%	6.33%
Bonds \| PNMR 2021 Delayed-Draw Term Loan
Debt Instrument [Line Items]
Long-term debt								$ 51,000,000	$ 51,000,000
Variable interest rate								6.39%	6.39%
Bonds \| PCRB 1.10%, Due June 2040
Debt Instrument [Line Items]
Aggregate principal amount																			$ 130,000,000
Stated interest rate																			1.10%
Bonds \| PCRB 3.90%, Due June 2028
Debt Instrument [Line Items]
Aggregate principal amount																$ 130,000,000
Stated interest rate																3.90%
Bonds \| PNMR 2023 Delayed-Draw Term Loan
Debt Instrument [Line Items]
Variable interest rate								6.79%	6.79%
Bonds \| PNM \| 3.00% Pollution Control Revenue Bonds Due June 2038
Debt Instrument [Line Items]
Aggregate principal amount															$ 37,000,000
Stated interest rate															3.00%
Bonds \| PNM \| 1.15% Pollution Control Revenue Bonds Due June 2038
Debt Instrument [Line Items]
Aggregate principal amount															$ 125,000,000
Stated interest rate															1.15%
Bonds \| PNM \| Pollution Control Revenue Bonds Due June 2024
Debt Instrument [Line Items]
Aggregate principal amount															$ 36,000,000
Stated interest rate															3.00%
Bonds \| PNM \| Pollution Control Revenue Bonds Due June 2029
Debt Instrument [Line Items]
Aggregate principal amount												$ 198,000,000
Stated interest rate												3.875%
Secured Debt \| PNM 2023 Term Loan
Debt Instrument [Line Items]
Aggregate principal amount										$ 500,000,000
Long-term debt								$ 410,000,000	$ 410,000,000
Variable rate									6.79%
Secured Debt \| PNM \| TNMP 2023 Bond Purchase Agreement
Debt Instrument [Line Items]
Debt instrument, series of bond issuance \| bond																		2
Secured Debt \| Texas-New Mexico Power Company \| TNMP 2023 Bond Purchase Agreement
Debt Instrument [Line Items]
Aggregate principal amount																		$ 185,000,000
Secured Debt \| Texas-New Mexico Power Company \| TNMP 2023 Bond Purchase Agreement At 5.01%, Due April 28, 2033
Debt Instrument [Line Items]
Aggregate principal amount																		$ 130,000,000.0
Stated interest rate																		5.01%
Secured Debt \| Texas-New Mexico Power Company \| TNMP 2023 Bond Purchase Agreement At 5.47%, Due July 28, 2053
Debt Instrument [Line Items]
Aggregate principal amount																		$ 55,000,000.0
Stated interest rate																		5.47%