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LONG-TERM DEBT (Tables) | 12 Months Ended
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Dec. 31, 2023
Debt Disclosure [Abstract] |
Schedule of Debt | The Evergy Companies' long-term debt is detailed in the following tables.
December 31, 2023 | Issuing Entity |  | Year Due |  | Evergy |  | Evergy Kansas Central |  | Evergy Metro
Mortgage Bonds |  |  |  |  | (millions)
3.25% Series | Evergy Kansas Central, Inc. |  | 2025 |  | $ | 250.0 |  |  | $ | 250.0 |  |  | $ | — |
2.55% Series | Evergy Kansas Central, Inc. |  | 2026 |  | 350.0 |  |  | 350.0 |  |  | — |
3.10% Series | Evergy Kansas Central, Inc. |  | 2027 |  | 300.0 |  |  | 300.0 |  |  | — |
5.90% Series | Evergy Kansas Central, Inc. |  | 2033 |  | 300.0 |  |  | 300.0 |  |  | — |
4.125% Series | Evergy Kansas Central, Inc. |  | 2042 |  | 550.0 |  |  | 550.0 |  |  | — |
4.10% Series | Evergy Kansas Central, Inc. |  | 2043 |  | 430.0 |  |  | 430.0 |  |  | — |
4.625% Series | Evergy Kansas Central, Inc. |  | 2043 |  | 250.0 |  |  | 250.0 |  |  | — |
4.25% Series | Evergy Kansas Central, Inc. |  | 2045 |  | 300.0 |  |  | 300.0 |  |  | — |
3.25% Series | Evergy Kansas Central, Inc. |  | 2049 |  | 300.0 |  |  | 300.0 |  |  | — |
3.45% Series | Evergy Kansas Central, Inc. |  | 2050 |  | 500.0 |  |  | 500.0 |  |  | — |
5.70% Series | Evergy Kansas Central, Inc. |  | 2053 |  | 400.0 |  |  | 400.0 |  |  | — |
6.53% Series | Evergy Kansas South, Inc. |  | 2037 |  | 175.0 |  |  | 175.0 |  |  | — |
6.64% Series | Evergy Kansas South, Inc. |  | 2038 |  | 100.0 |  |  | 100.0 |  |  | — |
4.30% Series | Evergy Kansas South, Inc. |  | 2044 |  | 250.0 |  |  | 250.0 |  |  | — |
4.30% EIRR bonds | Evergy Metro, Inc. |  | 2026 |  | 79.5 |  |  | — |  |  | 79.5 |
2.25% Series | Evergy Metro, Inc. |  | 2030 |  | 400.0 |  |  | — |  |  | 400.0 |
4.95% Series | Evergy Metro, Inc. |  | 2033 |  | 300.0 |  |  | — |  |  | 300.0 |
4.125% Series | Evergy Metro, Inc. |  | 2049 |  | 400.0 |  |  | — |  |  | 400.0 |
5.15% Series | Evergy Missouri West, Inc. |  | 2027 |  | 300.0 |  |  | — |  |  | — |
3.75% Series | Evergy Missouri West, Inc. |  | 2032 |  | 250.0 |  |  | — |  |  | — |
Pollution Control Bonds |  |  |  |  |  |  |  |  |
3.66% Series(a) | Evergy Kansas Central, Inc. |  | 2032 |  | 45.0 |  |  | 45.0 |  |  | — |
3.66% Series(a) | Evergy Kansas Central, Inc. |  | 2032 |  | 30.5 |  |  | 30.5 |  |  | — |
3.66% Series(a) | Evergy Kansas South, Inc. |  | 2027 |  | 21.9 |  |  | 21.9 |  |  | — |
2.50% Series | Evergy Kansas South, Inc. |  | 2031 |  | 50.0 |  |  | 50.0 |  |  | — |
3.66% Series(a) | Evergy Kansas South, Inc. |  | 2032 |  | 14.5 |  |  | 14.5 |  |  | — |
3.66% Series(a) | Evergy Kansas South, Inc. |  | 2032 |  | 10.0 |  |  | 10.0 |  |  | — |
3.83% Series 2007A and 2007B(a) | Evergy Metro, Inc. |  | 2035 |  | 146.5 |  |  | — |  |  | 146.5 |
3.50% EIRR bonds | Evergy Metro, Inc. |  | 2038 |  | 23.4 |  |  | — |  |  | 23.4 |
Senior Notes |  |  |  |  |  |  |  |  |
3.65% Series(b) | Evergy Metro, Inc. |  | 2025 |  | 350.0 |  |  | — |  |  | 350.0 |
6.05% Series (5.78% rate)(b)(c) | Evergy Metro, Inc. |  | 2035 |  | 250.0 |  |  | — |  |  | 250.0 |
5.30% Series(b) | Evergy Metro, Inc. |  | 2041 |  | 400.0 |  |  | — |  |  | 400.0 |
4.20% Series(b) | Evergy Metro, Inc. |  | 2047 |  | 300.0 |  |  | — |  |  | 300.0 |
4.20% Series(b) | Evergy Metro, Inc. |  | 2048 |  | 300.0 |  |  | — |  |  | 300.0 |
3.49% Series A(d) | Evergy Missouri West, Inc. |  | 2025 |  | 36.0 |  |  | — |  |  | — |
4.06% Series B(d) | Evergy Missouri West, Inc. |  | 2033 |  | 60.0 |  |  | — |  |  | — |
4.74% Series C(d) | Evergy Missouri West, Inc. |  | 2043 |  | 150.0 |  |  | — |  |  | — |
2.86% Series A(d) | Evergy Missouri West, Inc. |  | 2031 |  | 350.0 |  |  | — |  |  | — |
3.01% Series B(d) | Evergy Missouri West, Inc. |  | 2033 |  | 75.0 |  |  | — |  |  | — |
3.21% Series C(d) | Evergy Missouri West, Inc. |  | 2036 |  | 75.0 |  |  | — |  |  | — |
2.45% Series | Evergy, Inc. |  | 2024 |  | 800.0 |  |  | — |  |  | — |
2.90% Series (3.77% rate)(c) | Evergy, Inc. |  | 2029 |  | 800.0 |  |  | — |  |  | — |
Convertible Notes |  |  |  |  |  |  |  |  |
4.50% Convertible Notes | Evergy, Inc. |  | 2027 |  | 1,400.0 |  |  | — |  |  | — |
Fair value adjustment(f) |  |  |  |  | 87.0 |  |  | — |  |  | — |
Current maturities(g) |  |  |  |  | (800.0) |  |  | — |  |  | — |
Unamortized debt discount and debt issuance costs |  |  |  | (106.0) |  |  | (46.5) |  |  | (25.0) |
Total excluding current maturities(h) |  |  |  | $ | 11,053.3 |  |  | $ | 4,580.4 |  |  | $ | 2,924.4 |
December 31, 2022 | Issuing Entity |  | Year Due |  | Evergy |  | Evergy Kansas Central |  | Evergy Metro
Mortgage Bonds |  |  |  |  | (millions)
3.25% Series | Evergy Kansas Central, Inc. |  | 2025 |  | $ | 250.0 |  |  | $ | 250.0 |  |  | $ | — |
2.55% Series | Evergy Kansas Central, Inc. |  | 2026 |  | 350.0 |  |  | 350.0 |  |  | — |
3.10% Series | Evergy Kansas Central, Inc. |  | 2027 |  | 300.0 |  |  | 300.0 |  |  | — |
4.125% Series | Evergy Kansas Central, Inc. |  | 2042 |  | 550.0 |  |  | 550.0 |  |  | — |
4.10% Series | Evergy Kansas Central, Inc. |  | 2043 |  | 430.0 |  |  | 430.0 |  |  | — |
4.625% Series | Evergy Kansas Central, Inc. |  | 2043 |  | 250.0 |  |  | 250.0 |  |  | — |
4.25% Series | Evergy Kansas Central, Inc. |  | 2045 |  | 300.0 |  |  | 300.0 |  |  | — |
3.25% Series | Evergy Kansas Central, Inc. |  | 2049 |  | 300.0 |  |  | 300.0 |  |  | — |
3.45% Series | Evergy Kansas Central, Inc. |  | 2050 |  | 500.0 |  |  | 500.0 |  |  | — |
6.15% Series | Evergy Kansas South, Inc. |  | 2023 |  | 50.0 |  |  | 50.0 |  |  | — |
6.53% Series | Evergy Kansas South, Inc. |  | 2037 |  | 175.0 |  |  | 175.0 |  |  | — |
6.64% Series | Evergy Kansas South, Inc. |  | 2038 |  | 100.0 |  |  | 100.0 |  |  | — |
4.30% Series | Evergy Kansas South, Inc. |  | 2044 |  | 250.0 |  |  | 250.0 |  |  | — |
2.95% EIRR bonds | Evergy Metro, Inc. |  | 2023 |  | 79.5 |  |  | — |  |  | 79.5 |
2.25% Series | Evergy Metro, Inc. |  | 2030 |  | 400.0 |  |  | — |  |  | 400.0 |
4.125% Series | Evergy Metro, Inc. |  | 2049 |  | 400.0 |  |  | — |  |  | 400.0 |
5.15% Series | Evergy Missouri West, Inc. |  | 2027 |  | 300.0 |  |  | — |  |  | — |
3.75% Series | Evergy Missouri West, Inc. |  | 2032 |  | 250.0 |  |  | — |  |  | — |
Pollution Control Bonds |  |  |  |  |  |  |  |  |
3.54% Series(a) | Evergy Kansas Central, Inc. |  | 2032 |  | 45.0 |  |  | 45.0 |  |  | — |
3.54% Series(a) | Evergy Kansas Central, Inc. |  | 2032 |  | 30.5 |  |  | 30.5 |  |  | — |
3.54% Series(a) | Evergy Kansas South, Inc. |  | 2027 |  | 21.9 |  |  | 21.9 |  |  | — |
2.50% Series | Evergy Kansas South, Inc. |  | 2031 |  | 50.0 |  |  | 50.0 |  |  | — |
3.54% Series(a) | Evergy Kansas South, Inc. |  | 2032 |  | 14.5 |  |  | 14.5 |  |  | — |
3.54% Series(a) | Evergy Kansas South, Inc. |  | 2032 |  | 10.0 |  |  | 10.0 |  |  | — |
3.287% Series 2007A and 2007B(a) | Evergy Metro, Inc. |  | 2035 |  | 146.5 |  |  | — |  |  | 146.5 |
3.50% EIRR bonds | Evergy Metro, Inc. |  | 2038 |  | 23.4 |  |  | — |  |  | 23.4 |
Senior Notes |  |  |  |  |  |  |  |  |
3.15% Series(b) | Evergy Metro, Inc. |  | 2023 |  | 300.0 |  |  | — |  |  | 300.0 |
3.65% Series(b) | Evergy Metro, Inc. |  | 2025 |  | 350.0 |  |  | — |  |  | 350.0 |
6.05% Series (5.78% rate)(b)(c) | Evergy Metro, Inc. |  | 2035 |  | 250.0 |  |  | — |  |  | 250.0 |
5.30% Series(b) | Evergy Metro, Inc. |  | 2041 |  | 400.0 |  |  | — |  |  | 400.0 |
4.20% Series(b) | Evergy Metro, Inc. |  | 2047 |  | 300.0 |  |  | — |  |  | 300.0 |
4.20% Series(b) | Evergy Metro, Inc. |  | 2048 |  | 300.0 |  |  | — |  |  | 300.0 |
3.49% Series A(d) | Evergy Missouri West, Inc. |  | 2025 |  | 36.0 |  |  | — |  |  | — |
4.06% Series B(d) | Evergy Missouri West, Inc. |  | 2033 |  | 60.0 |  |  | — |  |  | — |
4.74% Series C(d) | Evergy Missouri West, Inc. |  | 2043 |  | 150.0 |  |  | — |  |  | — |
2.86% Series A(d) | Evergy Missouri West, Inc. |  | 2031 |  | 350.0 |  |  | — |  |  | — |
3.01% Series B(d) | Evergy Missouri West, Inc. |  | 2033 |  | 75.0 |  |  | — |  |  | — |
3.21% Series C(d) | Evergy Missouri West, Inc. |  | 2036 |  | 75.0 |  |  | — |  |  | — |
2.45% Series | Evergy, Inc. |  | 2024 |  | 800.0 |  |  | — |  |  | — |
2.90% Series (3.77% rate)(c) | Evergy, Inc. |  | 2029 |  | 800.0 |  |  | — |  |  | — |
Medium Term Notes |  |  |  |  |  |  |  |  |
7.33% Series(d) | Evergy Missouri West, Inc. |  | 2023 |  | 3.0 |  |  | — |  |  | — |
7.17% Series(d) | Evergy Missouri West, Inc. |  | 2023 |  | 7.0 |  |  | — |  |  | — |
Term loan facility(e) | Evergy, Inc. |  | 2024 |  | 500.0 |  |  | — |  |  | — |
Fair value adjustment(f) |  |  |  |  | 92.1 |  |  | — |  |  | — |
Current maturities(g) |  |  |  |  | (439.1) |  |  | (50.0) |  |  | (379.5) |
Unamortized debt discount and debt issuance costs |  |  |  | (79.6) |  |  | (40.0) |  |  | (22.8) |
Total excluding current maturities(h) |  |  |  | $ | 9,905.7 |  |  | $ | 3,886.9 |  |  | $ | 2,547.1 |
(a)Variable rate. (b)Effectively secured pursuant to the General Mortgage Indenture and Deed of Trust dated as of December 1, 1986, as supplemented (Evergy Metro Mortgage Indenture) through the issuance of collateral mortgage bonds to the trustee in 2019. (c)Rate after amortizing gains/losses recognized in OCI on settlements of interest rate hedging instruments. (d)Unconditionally guaranteed by Evergy, Inc. (e) Evergy demonstrated the intent and ability to refinance the Term Loan Facility with an original expiration date in February 2023 with a new maturity date of February 2024 and therefore it is reflected in long-term debt, net on Evergy's consolidated balance sheets as of December 31, 2022. (f) Represents the fair value adjustments recorded at Evergy consolidated related to the long-term debt of Great Plains Energy, Evergy Metro and Evergy Missouri West in connection with purchase accounting for the Great Plains Energy and Evergy Kansas Central merger. This amount is not part of future principal payments and will amortize over the remaining life of the associated debt instruments. (g) Evergy's current maturities total as of December 31, 2023, did not include any fair value adjustments in connection with purchase accounting. Evergy's current maturities total as of December 31, 2022, includes $(0.4) million of fair value adjustments recorded in connection with purchase accounting for the Great Plains Energy and Evergy Kansas Central merger. (h) As of December 31, 2023 and 2022, does not include $50.0 million and $21.9 million of secured Series 2005 Environmental Improvement Revenue Refunding (EIRR) bonds because the bonds were repurchased in September 2015 and are held by Evergy Metro.
Schedule of Maturities of Long-Term Debt | Evergy's, Evergy Kansas Central's and Evergy Metro's long-term debt maturities for the next five years are detailed in the following table.
|  | 2024 |  | 2025 |  | 2026 |  | 2027 |  | 2028
|  | (millions)
Evergy |  | $ | 800.0 |  |  | $ | 636.0 |  |  | $ | 429.5 |  |  | $ | 2,021.9 |  |  | $ | — |
Evergy Kansas Central |  | — |  |  | 250.0 |  |  | 350.0 |  |  | 321.9 |  |  | — |
Evergy Metro |  | — |  |  | 350.0 |  |  | 79.5 |  |  | — |  |  | — |

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