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Financings and Capitalization (Tables) | 9 Months Ended
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Sep. 30, 2019
Debt Instrument [Line Items] |
Major Long-Term Debt Transactions | Financings: Presented in the following table is a summary of major long‑term debt transactions during the nine months ended September 30, 2019:
| Principal (In Millions) |  | Interest Rate |  | Issue/Retirement Date | Maturity Date
Debt issuances |  |  |  |  |
CMS Energy, parent only |  |  |  |  |
Term loan facility |  | $ | 300 |  | variable |  | January 2019 | December 2019
Junior subordinated notes 1 |  | 630 |  | 5.875 | % | February 2019 | March 2079
Term loan facility 2 |  | 165 |  | variable |  | June 2019 | June 2020
Total CMS Energy, parent only |  | $ | 1,095 |  |  |  |
Consumers |  |  |  |  |
First mortgage bonds |  | $ | 300 |  | 3.750 | % | May 2019 | February 2050
First mortgage bonds |  | 550 |  | 3.100 | % | September 2019 | August 2050
First mortgage bonds 3 |  | 76 |  | variable |  | September 2019 | September 2069
Total Consumers |  | $ | 926 |  |  |  |
Total CMS Energy |  | $ | 2,021 |  |  |  |
Debt retirements |  |  |  |  |
CMS Energy, parent only |  |  |  |  |
Term loan facility |  | $ | 300 |  | variable |  | February 2019 | December 2019
Term loan facility |  | 180 |  | variable |  | February 2019 | April 2019
Term loan facility 2 |  | 65 |  | variable |  | August 2019 | June 2020
Total CMS Energy, parent only |  | $ | 545 |  |  |  |
Consumers |  |  |  |  |
First mortgage bonds |  | $ | 300 |  | 5.650 | % | May 2019 | April 2020
Total Consumers |  | $ | 300 |  |  |  |
Total CMS Energy |  | $ | 845 |  |  |  |
1 | These unsecured obligations rank subordinate and junior in right of payment to all of CMS Energy’s existing and future senior indebtedness.
2 | At September 30, 2019, the weighted-average interest rate on the remaining balance of this term loan facility was 2.552 percent, based on a $95 million tranche bearing interest at a rate of one-month LIBOR plus 0.500 percent and a $5 million tranche bearing interest at a rate of one-week LIBOR plus 0.500 percent. In October 2019, CMS Energy repaid the $5 million tranche.
3 These floating rate first mortgage bonds bear interest quarterly at a rate of three-month LIBOR minus 0.300 percent (1.864 percent at September 30, 2019).
Revolving Credit Facilities | Revolving Credit Facilities: The following revolving credit facilities with banks were available at September 30, 2019:
In Millions |
Expiration Date | Amount of Facility |  | Amount Borrowed |  | Letters of Credit Outstanding |  | Amount Available |
CMS Energy, parent only |  |  |  |  |  |  |  |
June 5, 2023 |  | $ | 550 |  |  | $ | — |  |  | $ | 3 |  |  | $ | 547 |
CMS Enterprises, including subsidiaries |  |  |  |  |  |  |  |
September 30, 2025 1 |  | $ | 18 |  |  | $ | — |  |  | $ | 8 |  |  | $ | 10 |
Consumers 2 |  |  |  |  |  |  |  |
June 5, 2023 |  | $ | 850 |  |  | $ | — |  |  | $ | 7 |  |  | $ | 843 |
November 23, 2020 |  | 250 |  |  | — |  |  | 25 |  |  | 225 |
April 18, 2022 |  | 30 |  |  | — |  |  | 30 |  |  | — |
1 | 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.
2 | Obligations under these facilities are secured by first mortgage bonds of Consumers.
Schedule of Forward Contracts Indexed to Issuer's Equity | Presented in the following table are details of these contracts:
Contract Date | Maturity Date | Number of Shares |  | Initial Forward Price Per Share |
November 16, 2018 | May 16, 2020 | 2,017,783 |  |  | $ | 49.06 |
November 20, 2018 | May 20, 2020 | 777,899 |  |  | 50.91 |
February 21, 2019 | August 21, 2020 | 2,083,340 |  |  | 52.27 |
Consumers Energy Company |
Debt Instrument [Line Items] |
Major Long-Term Debt Transactions | Financings: Presented in the following table is a summary of major long‑term debt transactions during the nine months ended September 30, 2019:
| Principal (In Millions) |  | Interest Rate |  | Issue/Retirement Date | Maturity Date
Debt issuances |  |  |  |  |
CMS Energy, parent only |  |  |  |  |
Term loan facility |  | $ | 300 |  | variable |  | January 2019 | December 2019
Junior subordinated notes 1 |  | 630 |  | 5.875 | % | February 2019 | March 2079
Term loan facility 2 |  | 165 |  | variable |  | June 2019 | June 2020
Total CMS Energy, parent only |  | $ | 1,095 |  |  |  |
Consumers |  |  |  |  |
First mortgage bonds |  | $ | 300 |  | 3.750 | % | May 2019 | February 2050
First mortgage bonds |  | 550 |  | 3.100 | % | September 2019 | August 2050
First mortgage bonds 3 |  | 76 |  | variable |  | September 2019 | September 2069
Total Consumers |  | $ | 926 |  |  |  |
Total CMS Energy |  | $ | 2,021 |  |  |  |
Debt retirements |  |  |  |  |
CMS Energy, parent only |  |  |  |  |
Term loan facility |  | $ | 300 |  | variable |  | February 2019 | December 2019
Term loan facility |  | 180 |  | variable |  | February 2019 | April 2019
Term loan facility 2 |  | 65 |  | variable |  | August 2019 | June 2020
Total CMS Energy, parent only |  | $ | 545 |  |  |  |
Consumers |  |  |  |  |
First mortgage bonds |  | $ | 300 |  | 5.650 | % | May 2019 | April 2020
Total Consumers |  | $ | 300 |  |  |  |
Total CMS Energy |  | $ | 845 |  |  |  |
1 | These unsecured obligations rank subordinate and junior in right of payment to all of CMS Energy’s existing and future senior indebtedness.
2 | At September 30, 2019, the weighted-average interest rate on the remaining balance of this term loan facility was 2.552 percent, based on a $95 million tranche bearing interest at a rate of one-month LIBOR plus 0.500 percent and a $5 million tranche bearing interest at a rate of one-week LIBOR plus 0.500 percent. In October 2019, CMS Energy repaid the $5 million tranche.
3 These floating rate first mortgage bonds bear interest quarterly at a rate of three-month LIBOR minus 0.300 percent (1.864 percent at September 30, 2019).
Revolving Credit Facilities | Revolving Credit Facilities: The following revolving credit facilities with banks were available at September 30, 2019:
In Millions |
Expiration Date | Amount of Facility |  | Amount Borrowed |  | Letters of Credit Outstanding |  | Amount Available |
CMS Energy, parent only |  |  |  |  |  |  |  |
June 5, 2023 |  | $ | 550 |  |  | $ | — |  |  | $ | 3 |  |  | $ | 547 |
CMS Enterprises, including subsidiaries |  |  |  |  |  |  |  |
September 30, 2025 1 |  | $ | 18 |  |  | $ | — |  |  | $ | 8 |  |  | $ | 10 |
Consumers 2 |  |  |  |  |  |  |  |
June 5, 2023 |  | $ | 850 |  |  | $ | — |  |  | $ | 7 |  |  | $ | 843 |
November 23, 2020 |  | 250 |  |  | — |  |  | 25 |  |  | 225 |
April 18, 2022 |  | 30 |  |  | — |  |  | 30 |  |  | — |
1 | 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.
2 | Obligations under these facilities are secured by first mortgage bonds of Consumers.

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- Definition Tabular disclosure of freestanding forward contracts issued by an entity that are indexed to, and potentially settled in an entity's own stock. The disclosure may include, but not be limited to: (i) the forward rate and the number of shares to which the contract is indexed, (ii) the settlement date or dates of the contract, (iii) the issuer's accounting for the contract, (iv) settlement alternatives (if applicable) including who controls the settlement alternatives and the maximum number of shares that could be required to be issued to net share settle the contract (if applicable), (v) the fact that a potentially infinite number of shares may be required to be issued to settle the contract, if a contract does not have a stated fixed or determinable maximum number of shares, and (vi) the contract's current fair value for each settlement alternative and how changes in the price of the issuer's equity instruments affect those settlement amounts. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 40 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6445032&loc=d3e90205-114008 + Details
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