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Financings And Capitalization (Tables) | 12 Months Ended
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Dec. 31, 2020
Debt Instrument [Line Items] |
Summary Of Long-Term Debt Outstanding | Presented in the following table is CMS Energy’s long-term debt at December 31:
In Millions
| Interest Rate (%) | Maturity | 2020 | 2019
CMS Energy, including Consumers |  |  |  |  |  |  |  |
CMS Energy, parent only |  |  |  |  |  |  |  |
Senior notes | 5.050 |  |  | 2022 |  |  | $ | — |  |  | $ | 300 |
| 3.875 |  |  | 2024 |  |  | 250 |  |  | 250 |
| 3.600 |  |  | 2025 |  |  | 250 |  |  | 250 |
| 3.000 |  |  | 2026 |  |  | 300 |  |  | 300 |
| 2.950 |  |  | 2027 |  |  | 275 |  |  | 275 |
| 3.450 |  |  | 2027 |  |  | 350 |  |  | 350 |
| 4.700 |  |  | 2043 |  |  | 250 |  |  | 250 |
| 4.875 |  |  | 2044 |  |  | 300 |  |  | 300 |
|  |  |  |  |  | $ | 1,975 |  |  | $ | 2,275 |
Term loan facility | variable | 1 | 2021 |  |  | 200 |  |  | — |
Junior subordinated notes 2 | 4.750 |  |  | 2050 |  |  | 500 |  |  | — |
| 3.750 |  |  | 2050 |  |  | 400 |  |  | — |
| 5.625 |  |  | 2078 |  |  | 200 |  |  | 200 |
| 5.875 |  |  | 2078 |  |  | 280 |  |  | 280 |
| 5.875 |  |  | 2079 |  |  | 630 |  |  | 630 |
|  |  |  |  |  | $ | 2,010 |  |  | $ | 1,110 |
Total CMS Energy, parent only |  |  |  |  |  | $ | 4,185 |  |  | $ | 3,385 |
Consumers |  |  |  |  |  | 8,197 |  |  | 7,322 |
CMS Enterprises, including subsidiaries |  |  |  |  |  |  |  |
Term loan facility | variable | 3 | 2025 |  |  | 85 |  |  | 92 |
EnerBank |  |  |  |  |  |  |  |
Certificates of deposit | 1.621 |  | 4 | 2021-2028 |  |  | 2,805 |  |  | 2,389 |
Total principal amount outstanding |  |  |  |  |  | $ | 15,272 |  |  | $ | 13,188 |
Current amounts |  |  |  |  |  | (1,486) |  |  | (1,111) |
Unamortized discounts |  |  |  |  |  | (33) |  |  | (27) |
Unamortized issuance costs |  |  |  |  |  | (119) |  |  | (99) |
Total long-term debt |  |  |  |  |  | $ | 13,634 |  |  | $ | 11,951 |
1 At December 31, 2020, the interest rate on the balance of this term loan facility was 0.600 percent, based on an interest rate of one-week LIBOR plus 0.500 percent. 2 These unsecured obligations rank subordinate and junior in right of payment to all of CMS Energy’s existing and future senior indebtedness. 3 A subsidiary of CMS Enterprises issued non‑recourse debt to finance the acquisition of a wind generation project in Northwest Ohio. The interest rate for the debt is three-month LIBOR plus 1.500 percent through October 2022 and three-month LIBOR plus 1.750 percent thereafter. At December 31, 2020 and 2019, the interest rate was 1.754 percent and 3.445 percent, respectively. The same subsidiary of CMS Enterprises entered into interest rate swaps with the lending banks to fix the interest charges associated with the debt, at a rate of 4.702 percent through October 2022 and 4.952 percent thereafter. Principal and interest payments are made quarterly. For information about the interest rate swaps, see Note 6, Fair Value Measurements. 4 The weighted-average interest rate for EnerBank’s certificates of deposit was 1.621 percent at December 31, 2020 and 2.445 percent at December 31, 2019. EnerBank’s primary deposit product consists of brokered certificates of deposit with varying maturities and having a face value of $1,000.
Schedule of Debt | Presented in the following table is a summary of major long-term debt issuances during the year ended December 31, 2020:
| Principal (In Millions) | Interest Rate | Issuance Date | Maturity Date |  |  |  |
CMS Energy, parent only |  |  |  |  |  |  |  |  |
Term loan facility 1 |  | $ | 300 |  | variable | February | February 2021 |  |  |  |
Junior subordinated notes 2 |  | 500 |  | 4.750 | % | May | June 2050 |  |  |  |
Junior subordinated notes 3 |  | 400 |  | 3.750 | % | November | December 2050 |  |  |  |
Total CMS Energy, parent only |  | $ | 1,200 |  |  |  |  |  |  |  |
Consumers |  |  |  |  |  |  |  |  |
Term loan facility |  | $ | 300 |  | variable | January | January 2021 |  |  |  |
First mortgage bonds |  | 575 |  | 3.500 | % | March | August 2051 |  |  |  |
First mortgage bonds |  | 525 |  | 2.500 | % | May | May 2060 |  |  |  |
First mortgage bonds |  | 134 |  | variable | May | May 2070 |  |  |  |
First mortgage bonds |  | 127 |  | variable | October | October 2070 |  |  |  |
First mortgage bonds |  | 300 |  | 0.350 | % | December | June 2023 |  |  |  |
Total Consumers |  | $ | 1,961 |  |  |  |  |  |  |  |
Total CMS Energy |  | $ | 3,161 |  |  |  |  |  |  |  |
1 In December 2020, CMS Energy repaid $100 million of this facility and, in February 2021, amended the facility by extending its maturity date to November 2021. 2 These unsecured obligations rank subordinate and junior in right of payment to all of CMS Energy’s existing and future senior indebtedness. On June 1, 2030, and every five years thereafter, the notes will reset to an interest rate equal to the five-year treasury rate plus 4.116 percent. 3 These unsecured obligations rank subordinate and junior in right of payment to all of CMS Energy’s existing and future senior indebtedness. On December 1, 2030, and every five years thereafter, the notes will reset to an interest rate equal to the five-year treasury rate plus 2.900 percent. Presented in the following table is a summary of major long-term debt retirements during the year ended December 31, 2020:
| Principal (In Millions) | Interest Rate | Retirement Date | Maturity Date
CMS Energy, parent only |  |  |  |  |
Senior notes 1 |  | $ | 300 |  | 5.050 | % | December | March 2022
Total CMS Energy, parent only |  | $ | 300 |  |  |  |
Consumers |  |  |  |  |
First mortgage bonds |  | $ | 100 |  | 3.770 | % | April | October 2020
First mortgage bonds |  | 250 |  | 5.300 | % | June | September 2022
First mortgage bonds |  | 375 |  | 2.850 | % | September | May 2022
Term loan facility |  | 300 |  | variable | December | January 2021
Total Consumers |  | $ | 1,025 |  |  |  |
Total CMS Energy |  | $ | 1,325 |  |  |  |
1 CMS Energy retired these senior notes at a premium and recorded a loss on extinguishment of $16 million in other expense on its consolidated statements of income.
Debt Maturities | At December 31, 2020, the aggregate annual maturities for long-term debt for the next five years, based on stated maturities or earlier put dates, were:
In Millions
| 2021 | 2022 | 2023 | 2024 | 2025
CMS Energy, including Consumers |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |
CMS Energy, parent only |  | $ | 200 |  |  | $ | — |  |  | $ | — |  |  | $ | 250 |  |  | $ | 250 |
Consumers |  | 364 |  |  | 28 |  |  | 654 |  |  | 332 |  |  | 31 |
CMS Enterprises, including subsidiaries |  | 7 |  |  | 8 |  |  | 9 |  |  | 10 |  |  | 51 |
EnerBank |  | 915 |  |  | 572 |  |  | 477 |  |  | 325 |  |  | 244 |
Total CMS Energy |  | $ | 1,486 |  |  | $ | 608 |  |  | $ | 1,140 |  |  | $ | 917 |  |  | $ | 576 |
Consumers |  |  |  |  |  |  |  |  |  |
Long-term debt |  | $ | 364 |  |  | $ | 28 |  |  | $ | 654 |  |  | $ | 332 |  |  | $ | 31 |
Revolving Credit Facilities | The following credit facilities with banks were available at December 31, 2020:
In Millions |
Expiration Date | Amount of Facility | Amount Borrowed | Letters of Credit Outstanding | Amount Available |
CMS Energy, parent only |  |  |  |  |  |  |  |  |
June 5, 2023 1 |  | $ | 550 |  |  | $ | — |  |  | $ | 18 |  |  | $ | 532 |  |
CMS Enterprises, including subsidiaries |  |  |  |  |  |  |  |  |
September 25, 2025 2 |  | $ | 39 |  |  | $ | — |  |  | $ | 39 |  |  | $ | — |  |
September 30, 2025 3 |  | 18 |  |  | — |  |  | 8 |  |  | 10 |  |
Consumers 4 |  |  |  |  |  |  |  |  |
June 5, 2023 |  | $ | 850 |  |  | $ | — |  |  | $ | 7 |  |  | $ | 843 |  |
November 19, 2022 |  | 250 |  |  | — |  |  | 1 |  |  | 249 |  |
April 18, 2022 |  | 30 |  |  | — |  |  | 30 |  |  | — |  |
1 During the year ended December 31, 2020, CMS Energy’s average borrowings totaled $1 million with a weighted-average interest rate of 1.888 percent. 2 This letter of credit facility is available to Aviator Wind Equity Holdings. For more information regarding the acquisition of Aviator Wind Equity Holdings, see Note 21, Variable Interest Entities. 3 Under this facility, $8 million is available solely for the purpose of issuing letters of credit. Obligations under this facility are secured by the collateral accounts with the lending bank. There were no borrowings under this facility during the year ended December 31, 2020. 4 Obligations under these facilities are secured by first mortgage bonds of Consumers. During the year ended December 31, 2020, Consumers’ average borrowings totaled less than $1 million with a weighted-average interest rate of 1.425 percent.
Schedule of Forward Contracts | Presented in the following table are details of CMS Energy’s forward sales contracts under this program at December 31, 2020:
|  |  | Forward Price Per Share
Contract Date | Maturity Date | Number of Shares | Initial | December 31, 2020
September 15, 2020 | December 31, 2021 | 846,759 |  | $ | 61.04 |  |  | $ | 60.53 |
December 22, 2020 | June 22, 2022 | 115,595 |  | 61.81 |  |  | 61.81 |
Consumers Energy Company |
Debt Instrument [Line Items] |
Summary Of Long-Term Debt Outstanding | Presented in the following table is Consumers’ long-term debt at December 31:
In Millions
| Interest Rate (%) | Maturity | 2020 | 2019
Consumers |  |  |  |  |  |  |  |
First mortgage bonds | 3.770 |  |  | 2020 |  |  | $ | — |  |  | $ | 100 |
| 2.850 |  |  | 2022 |  |  | — |  |  | 375 |
| 5.300 |  |  | 2022 |  |  | — |  |  | 250 |
| 0.350 |  |  | 2023 |  |  | 300 |  |  | — |
| 3.375 |  |  | 2023 |  |  | 325 |  |  | 325 |
| 3.125 |  |  | 2024 |  |  | 250 |  |  | 250 |
| 3.190 |  |  | 2024 |  |  | 52 |  |  | 52 |
| 3.680 |  |  | 2027 |  |  | 100 |  |  | 100 |
| 3.390 |  |  | 2027 |  |  | 35 |  |  | 35 |
| 3.800 |  |  | 2028 |  |  | 300 |  |  | 300 |
| 3.180 |  |  | 2032 |  |  | 100 |  |  | 100 |
| 5.800 |  |  | 2035 |  |  | 175 |  |  | 175 |
| 3.520 |  |  | 2037 |  |  | 335 |  |  | 335 |
| 4.010 |  |  | 2038 |  |  | 215 |  |  | 215 |
| 6.170 |  |  | 2040 |  |  | 50 |  |  | 50 |
| 4.970 |  |  | 2040 |  |  | 50 |  |  | 50 |
| 4.310 |  |  | 2042 |  |  | 263 |  |  | 263 |
| 3.950 |  |  | 2043 |  |  | 425 |  |  | 425 |
| 4.100 |  |  | 2045 |  |  | 250 |  |  | 250 |
| 3.250 |  |  | 2046 |  |  | 450 |  |  | 450 |
| 3.950 |  |  | 2047 |  |  | 350 |  |  | 350 |
| 4.050 |  |  | 2048 |  |  | 550 |  |  | 550 |
| 4.350 |  |  | 2049 |  |  | 550 |  |  | 550 |
| 3.750 |  |  | 2050 |  |  | 300 |  |  | 300 |
| 3.100 |  |  | 2050 |  |  | 550 |  |  | 550 |
| 3.500 |  |  | 2051 |  |  | 575 |  |  | — |
| 3.860 |  |  | 2052 |  |  | 50 |  |  | 50 |
| 4.280 |  |  | 2057 |  |  | 185 |  |  | 185 |
| 2.500 |  |  | 2060 |  |  | 525 |  |  | — |
| 4.350 |  |  | 2064 |  |  | 250 |  |  | 250 |
| variable | 1 | 2069 |  |  | 76 |  |  | 76 |
| variable | 1 | 2070 |  |  | 134 |  |  | — |
| variable | 1 | 2070 |  |  | 127 |  |  | — |
|  |  |  |  |  | $ | 7,897 |  |  | $ | 6,961 |
Tax-exempt revenue bonds | variable |  | 2035 |  |  | — |  |  | 35 |
| 1.800 |  | 2 | 2049 |  |  | 75 |  |  | 75 |
|  |  |  |  |  | $ | 75 |  |  | $ | 110 |
Securitization bonds | 3.250 |  | 3 | 2025-2029 | 4 |  | 225 |  |  | 251 |
Total principal amount outstanding |  |  |  |  |  | $ | 8,197 |  |  | $ | 7,322 |
Current amounts |  |  |  |  |  | (364) |  |  | (202) |
Unamortized discounts |  |  |  |  |  | (29) |  |  | (23) |
Unamortized issuance costs |  |  |  |  |  | (62) |  |  | (49) |
Total long-term debt |  |  |  |  |  | $ | 7,742 |  |  | $ | 7,048 |
1 The variable-rate bonds bear interest quarterly at a rate of three-month LIBOR minus 0.300 percent, subject to a zero-percent floor (zero percent at December 31, 2020). The holders of these variable-rate bonds may put them to Consumers for redemption on certain dates prior to their stated maturity, including dates within one year of December 31, 2020. 2 The interest rate on these tax‑exempt revenue bonds will reset on October 1, 2024. 3 The weighted-average interest rate for Consumers’ securitization bonds issued through its subsidiary, Consumers 2014 Securitization Funding, was 3.250 percent at December 31, 2020 and 3.220 percent at December 31, 2019. 4 Principal and interest payments are made semiannually.
Schedule of Debt | Presented in the following table is a summary of major long-term debt issuances during the year ended December 31, 2020:
| Principal (In Millions) | Interest Rate | Issuance Date | Maturity Date |  |  |  |
CMS Energy, parent only |  |  |  |  |  |  |  |  |
Term loan facility 1 |  | $ | 300 |  | variable | February | February 2021 |  |  |  |
Junior subordinated notes 2 |  | 500 |  | 4.750 | % | May | June 2050 |  |  |  |
Junior subordinated notes 3 |  | 400 |  | 3.750 | % | November | December 2050 |  |  |  |
Total CMS Energy, parent only |  | $ | 1,200 |  |  |  |  |  |  |  |
Consumers |  |  |  |  |  |  |  |  |
Term loan facility |  | $ | 300 |  | variable | January | January 2021 |  |  |  |
First mortgage bonds |  | 575 |  | 3.500 | % | March | August 2051 |  |  |  |
First mortgage bonds |  | 525 |  | 2.500 | % | May | May 2060 |  |  |  |
First mortgage bonds |  | 134 |  | variable | May | May 2070 |  |  |  |
First mortgage bonds |  | 127 |  | variable | October | October 2070 |  |  |  |
First mortgage bonds |  | 300 |  | 0.350 | % | December | June 2023 |  |  |  |
Total Consumers |  | $ | 1,961 |  |  |  |  |  |  |  |
Total CMS Energy |  | $ | 3,161 |  |  |  |  |  |  |  |
1 In December 2020, CMS Energy repaid $100 million of this facility and, in February 2021, amended the facility by extending its maturity date to November 2021. 2 These unsecured obligations rank subordinate and junior in right of payment to all of CMS Energy’s existing and future senior indebtedness. On June 1, 2030, and every five years thereafter, the notes will reset to an interest rate equal to the five-year treasury rate plus 4.116 percent. 3 These unsecured obligations rank subordinate and junior in right of payment to all of CMS Energy’s existing and future senior indebtedness. On December 1, 2030, and every five years thereafter, the notes will reset to an interest rate equal to the five-year treasury rate plus 2.900 percent. Presented in the following table is a summary of major long-term debt retirements during the year ended December 31, 2020:
| Principal (In Millions) | Interest Rate | Retirement Date | Maturity Date
CMS Energy, parent only |  |  |  |  |
Senior notes 1 |  | $ | 300 |  | 5.050 | % | December | March 2022
Total CMS Energy, parent only |  | $ | 300 |  |  |  |
Consumers |  |  |  |  |
First mortgage bonds |  | $ | 100 |  | 3.770 | % | April | October 2020
First mortgage bonds |  | 250 |  | 5.300 | % | June | September 2022
First mortgage bonds |  | 375 |  | 2.850 | % | September | May 2022
Term loan facility |  | 300 |  | variable | December | January 2021
Total Consumers |  | $ | 1,025 |  |  |  |
Total CMS Energy |  | $ | 1,325 |  |  |  |
1 CMS Energy retired these senior notes at a premium and recorded a loss on extinguishment of $16 million in other expense on its consolidated statements of income.
Debt Maturities | At December 31, 2020, the aggregate annual maturities for long-term debt for the next five years, based on stated maturities or earlier put dates, were:
In Millions
| 2021 | 2022 | 2023 | 2024 | 2025
CMS Energy, including Consumers |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |
CMS Energy, parent only |  | $ | 200 |  |  | $ | — |  |  | $ | — |  |  | $ | 250 |  |  | $ | 250 |
Consumers |  | 364 |  |  | 28 |  |  | 654 |  |  | 332 |  |  | 31 |
CMS Enterprises, including subsidiaries |  | 7 |  |  | 8 |  |  | 9 |  |  | 10 |  |  | 51 |
EnerBank |  | 915 |  |  | 572 |  |  | 477 |  |  | 325 |  |  | 244 |
Total CMS Energy |  | $ | 1,486 |  |  | $ | 608 |  |  | $ | 1,140 |  |  | $ | 917 |  |  | $ | 576 |
Consumers |  |  |  |  |  |  |  |  |  |
Long-term debt |  | $ | 364 |  |  | $ | 28 |  |  | $ | 654 |  |  | $ | 332 |  |  | $ | 31 |
Presented in the following table are the minimum Palisades PPA payments included in the financing obligation:
In Millions
December 31, 2020 |  |
2021 |  | $ | 14 |
2022 |  | 3 |
Total minimum payments |  | $ | 17 |
Less discount |  | 1 |
Financing obligation |  | $ | 16 |
Less current portion |  | 13 |
Non-current portion |  | $ | 3 |
Revolving Credit Facilities | The following credit facilities with banks were available at December 31, 2020:
In Millions |
Expiration Date | Amount of Facility | Amount Borrowed | Letters of Credit Outstanding | Amount Available |
CMS Energy, parent only |  |  |  |  |  |  |  |  |
June 5, 2023 1 |  | $ | 550 |  |  | $ | — |  |  | $ | 18 |  |  | $ | 532 |  |
CMS Enterprises, including subsidiaries |  |  |  |  |  |  |  |  |
September 25, 2025 2 |  | $ | 39 |  |  | $ | — |  |  | $ | 39 |  |  | $ | — |  |
September 30, 2025 3 |  | 18 |  |  | — |  |  | 8 |  |  | 10 |  |
Consumers 4 |  |  |  |  |  |  |  |  |
June 5, 2023 |  | $ | 850 |  |  | $ | — |  |  | $ | 7 |  |  | $ | 843 |  |
November 19, 2022 |  | 250 |  |  | — |  |  | 1 |  |  | 249 |  |
April 18, 2022 |  | 30 |  |  | — |  |  | 30 |  |  | — |  |
1 During the year ended December 31, 2020, CMS Energy’s average borrowings totaled $1 million with a weighted-average interest rate of 1.888 percent. 2 This letter of credit facility is available to Aviator Wind Equity Holdings. For more information regarding the acquisition of Aviator Wind Equity Holdings, see Note 21, Variable Interest Entities. 3 Under this facility, $8 million is available solely for the purpose of issuing letters of credit. Obligations under this facility are secured by the collateral accounts with the lending bank. There were no borrowings under this facility during the year ended December 31, 2020. 4 Obligations under these facilities are secured by first mortgage bonds of Consumers. During the year ended December 31, 2020, Consumers’ average borrowings totaled less than $1 million with a weighted-average interest rate of 1.425 percent.
Preferred Stock | Presented in the following table are details of Consumers’ preferred stock at December 31, 2020 and 2019:
| Par Value | Optional Redemption Price | Number of Shares Authorized | Number of Shares Outstanding
Cumulative, with no mandatory redemption |  | $ | 100 |  |  | $ | 110 |  | 7,500,000 | 373,148

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