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Financings And Capitalization (Tables) | 3 Months Ended
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Mar. 31, 2021
Debt Instrument [Line Items] |
Revolving Credit Facilities | The following credit facilities with banks were available at March 31, 2021:
In Millions
Expiration Date | Amount of Facility | Amount Borrowed | Letters of Credit Outstanding | Amount Available
CMS Energy, parent only |  |  |  |  |  |  |  |
June 5, 2023 |  | $ | 550 |  |  | $ | — |  |  | $ | 18 |  |  | $ | 532 |
CMS Enterprises, including subsidiaries |  |  |  |  |  |  |  |
September 25, 2025 1 |  | $ | 39 |  |  | $ | — |  |  | $ | 39 |  |  | $ | — |
September 30, 2025 2 |  | 18 |  |  | — |  |  | 8 |  |  | 10 |
Consumers 3 |  |  |  |  |  |  |  |
June 5, 2023 |  | $ | 850 |  |  | $ | — |  |  | $ | 12 |  |  | $ | 838 |
November 19, 2022 |  | 250 |  |  | — |  |  | 1 |  |  | 249 |
April 18, 2022 |  | 30 |  |  | — |  |  | 30 |  |  | — |
1 This letter of credit facility is available to Aviator Wind Equity Holdings. For more information regarding Aviator Wind Equity Holdings, see Note 13, Variable Interest Entities. 2 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. 3 Obligations under these facilities are secured by first mortgage bonds of Consumers.
Schedule of Forward Contracts | Presented in the following table are details of CMS Energy’s forward sales contracts under this program at March 31, 2021:
|  |  | Forward Price Per Share
Contract Date | Maturity Date | Number of Shares | Initial | March 31, 2021
September 15, 2020 | June 30, 2022 | 846,759 |  | $ | 61.04 |  |  | $ | 60.01 |
December 22, 2020 | June 22, 2022 | 115,595 |  | 61.81 |  |  | 61.31 |
Consumers Energy Company |
Debt Instrument [Line Items] |
Revolving Credit Facilities | The following credit facilities with banks were available at March 31, 2021:
In Millions
Expiration Date | Amount of Facility | Amount Borrowed | Letters of Credit Outstanding | Amount Available
CMS Energy, parent only |  |  |  |  |  |  |  |
June 5, 2023 |  | $ | 550 |  |  | $ | — |  |  | $ | 18 |  |  | $ | 532 |
CMS Enterprises, including subsidiaries |  |  |  |  |  |  |  |
September 25, 2025 1 |  | $ | 39 |  |  | $ | — |  |  | $ | 39 |  |  | $ | — |
September 30, 2025 2 |  | 18 |  |  | — |  |  | 8 |  |  | 10 |
Consumers 3 |  |  |  |  |  |  |  |
June 5, 2023 |  | $ | 850 |  |  | $ | — |  |  | $ | 12 |  |  | $ | 838 |
November 19, 2022 |  | 250 |  |  | — |  |  | 1 |  |  | 249 |
April 18, 2022 |  | 30 |  |  | — |  |  | 30 |  |  | — |
1 This letter of credit facility is available to Aviator Wind Equity Holdings. For more information regarding Aviator Wind Equity Holdings, see Note 13, Variable Interest Entities. 2 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. 3 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=120519210&loc=d3e90205-114008 + Details
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- Definition Tabular disclosure of short-term or long-term contractual arrangements with lenders, including letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(e),(f)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 + Details
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