XML 67 R36.htm IDEA: XBRL DOCUMENT
v3.3.1.900

Financings And Capitalization (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2015
Summary Of Long-Term Debt Outstanding |
In Millions
| Interest Rate (%) |  | Maturity | 2015 | 2014 |
CMS Energy parent |  |  |  |  |  |  |  |  |  |
Senior notes | 6.550 |  | 2017 |  | $ | 250 |  | $ | 250 |
| 5.050 |  | 2018 |  |  | 250 |  |  | 250 |
| 8.750 |  | 2019 |  |  | 300 |  |  | 300 |
| 6.250 |  | 2020 |  |  | 300 |  |  | 300 |
| 5.050 |  | 2022 |  |  | 300 |  |  | 300 |
| 3.875 |  | 2024 |  |  | 250 |  |  | 250 |
| 3.600 |  | 2025 |  |  | 250 |  |  | - |
| 4.700 |  | 2043 |  |  | 250 |  |  | 250 |
| 4.875 |  | 2044 |  |  | 300 |  |  | 300 |
Total CMS Energy senior notes |  |  |  |  | $ | 2,450 |  | $ | 2,200 |
Term loan facility | variable | 1 | 2017 |  |  | 180 |  |  | 180 |
Total CMS Energy parent |  |  |  |  | $ | 2,630 |  | $ | 2,380 |
Consumers |  |  |  |  | $ | 5,409 |  | $ | 5,283 |
Other CMS Energy subsidiaries |  |  |  |  |  |  |  |  |  |
EnerBank certificates of deposit | 1.365 | 2 | 2016-2025 |  | $ | 1,098 |  | $ | 884 |
Total other CMS Energy subsidiaries |  |  |  |  | $ | 1,098 |  | $ | 884 |
Total CMS Energy principal amount outstanding |  |  |  |  | $ | 9,137 |  | $ | 8,547 |
Current amounts |  |  |  |  |  | (684) |  |  | (519) |
Net unamortized discounts |  |  |  |  |  | (12) |  |  | (12) |
Total CMS Energy long-term debt |  |  |  |  | $ | 8,441 |  | $ | 8,016 |
| 1 |  | Outstanding borrowings bear interest at an annual interest rate of LIBOR plus 0.85 percent (1.19 percent at December 31, 2015).
| 2 |  | The weighted-average interest rate for EnerBank’s certificates of deposit was 1.36 percent at December 31, 2015 and 1.22 percent at December 31, 2014. EnerBank’s primary deposit product consists of brokered certificates of deposit with varying maturities and having a face value of $1,000.
Summary Of Major Long-Term Debt Transactions |
| Principal |  | Issue/Retirement |  |
| (In Millions) | Interest Rate |  | Date | Maturity Date |
Debt issuances |  |  |  |  |  |  |  |
CMS Energy parent |  |  |  |  |  |  |  |
Senior notes |  | $ | 250 | 3.600 | % | November 2015 | November 2025 |
Total CMS Energy parent |  | $ | 250 |  |  |  |  |
Consumers |  |  |  |  |  |  |  |
FMBs |  | $ | 250 | 4.100 | % | November 2015 | November 2045 |
Total Consumers |  | $ | 250 |  |  |  |  |
Total CMS Energy |  | $ | 500 |  |  |  |  |
Debt retirements |  |  |  |  |  |  |  |
Consumers |  |  |  |  |  |  |  |
FMBs |  | $ | 50 | 2.600 | % | October 2015 | October 2015 |
Total Consumers |  | $ | 50 |  |  |  |  |
Total CMS Energy |  | $ | 50 |  |  |  |  |
Debt Maturities |
In Millions
| 2016 | 2017 | 2018 | 2019 | 2020 |
CMS Energy, including Consumers |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  | $ | 684 |  | $ | 1,010 |  | $ | 911 |  | $ | 1,288 |  | $ | 801 |
Consumers |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  | $ | 198 |  | $ | 375 |  | $ | 523 |  | $ | 876 |  | $ | 426 |
Revolving Credit Facilities |
In Millions
| Amount of | Amount | Letters of Credit | Amount |
Expiration Date | Facility | Borrowed | Outstanding | Available |
CMS Energy parent |  |  |  |  |  |  |  |  |  |  |  |  |
May 27, 2020 1 |  | $ | 550 |  | $ | - |  | $ | 1 |  | $ | 549 |
Consumers |  |  |  |  |  |  |  |  |  |  |  |  |
May 27, 2020 2 |  | $ | 650 |  | $ | - |  | $ | 9 |  | $ | 641 |
November 23, 2017 2,3 |  |  | 250 |  |  | - |  |  | - |  |  | 250 |
May 9, 2018 2 |  |  | 30 |  |  | - |  |  | 30 |  |  | - |
| 1 |  | Obligations under this facility are secured by Consumers common stock.
| 2 |  | Obligations under this facility are secured by FMBs of Consumers.
| 3 |  | In November 2015, Consumers entered into a new $250 million credit facility and terminated its $250 million accounts receivable sales program.
Consumers Energy Company [Member] |
Summary Of Long-Term Debt Outstanding |
In Millions
| Interest Rate (%) |  | Maturity | 2015 | 2014 |
Consumers |  |  |  |  |  |  |  |  |  |
FMBs 1 | 2.600 |  | 2015 |  | $ | - |  | $ | 50 |
| 5.500 |  | 2016 |  |  | 173 |  |  | 173 |
| 5.150 |  | 2017 |  |  | 250 |  |  | 250 |
| 3.210 |  | 2017 |  |  | 100 |  |  | 100 |
| 5.650 |  | 2018 |  |  | 250 |  |  | 250 |
| 6.125 |  | 2019 |  |  | 350 |  |  | 350 |
| 6.700 |  | 2019 |  |  | 500 |  |  | 500 |
| 5.650 |  | 2020 |  |  | 300 |  |  | 300 |
| 3.770 |  | 2020 |  |  | 100 |  |  | 100 |
| 5.300 |  | 2022 |  |  | 250 |  |  | 250 |
| 2.850 |  | 2022 |  |  | 375 |  |  | 375 |
| 3.375 |  | 2023 |  |  | 325 |  |  | 325 |
| 3.190 |  | 2024 |  |  | 52 |  |  | 52 |
| 3.125 |  | 2024 |  |  | 250 |  |  | 250 |
| 3.390 |  | 2027 |  |  | 35 |  |  | 35 |
| 5.800 |  | 2035 |  |  | 175 |  |  | 175 |
| 6.170 |  | 2040 |  |  | 50 |  |  | 50 |
| 4.970 |  | 2040 |  |  | 50 |  |  | 50 |
| 4.310 |  | 2042 |  |  | 263 |  |  | 263 |
| 3.950 |  | 2043 |  |  | 425 |  |  | 425 |
| 4.100 |  | 2045 |  |  | 250 |  |  | - |
| 4.350 |  | 2064 |  |  | 250 |  |  | 250 |
|  |  |  |  | $ | 4,773 |  | $ | 4,573 |
Securitization bonds | 5.760 |  | 2015 |  |  | - |  |  | 49 |
| 2.689 | 2 | 2020-2029 | 3 |  | 353 |  |  | 378 |
|  |  |  |  | $ | 353 |  | $ | 427 |
Senior notes | 6.875 |  | 2018 |  |  | 180 |  |  | 180 |
Tax-exempt pollution control revenue bonds | various |  | 2018-2035 |  |  | 103 |  |  | 103 |
Total Consumers principal amount outstanding |  |  |  |  | $ | 5,409 |  | $ | 5,283 |
Current amounts |  |  |  |  |  | (198) |  |  | (124) |
Net unamortized discounts |  |  |  |  |  | (5) |  |  | (5) |
Total Consumers long-term debt |  |  |  |  | $ | 5,206 |  | $ | 5,154 |
| 1 |  | The weighted-average interest rate for Consumers’ FMBs was 4.73 percent at December 31, 2015 and 4.75 percent at December 31, 2014.
| 2 |  | The weighted-average interest rate for Consumers’ Securitization bonds issued through its subsidiary Consumers 2014 Securitization Funding was 2.69 percent at December 31, 2015 and 2.60 percent at December 31, 2014.
| 3 |  | Principal and interest payments are made semiannually.
Summary Of Major Long-Term Debt Transactions |
| Principal |  | Issue/Retirement |  |
| (In Millions) | Interest Rate |  | Date | Maturity Date |
Debt issuances |  |  |  |  |  |  |  |
CMS Energy parent |  |  |  |  |  |  |  |
Senior notes |  | $ | 250 | 3.600 | % | November 2015 | November 2025 |
Total CMS Energy parent |  | $ | 250 |  |  |  |  |
Consumers |  |  |  |  |  |  |  |
FMBs |  | $ | 250 | 4.100 | % | November 2015 | November 2045 |
Total Consumers |  | $ | 250 |  |  |  |  |
Total CMS Energy |  | $ | 500 |  |  |  |  |
Debt retirements |  |  |  |  |  |  |  |
Consumers |  |  |  |  |  |  |  |
FMBs |  | $ | 50 | 2.600 | % | October 2015 | October 2015 |
Total Consumers |  | $ | 50 |  |  |  |  |
Total CMS Energy |  | $ | 50 |  |  |  |  |
Debt Maturities |
In Millions
| 2016 | 2017 | 2018 | 2019 | 2020 |
CMS Energy, including Consumers |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  | $ | 684 |  | $ | 1,010 |  | $ | 911 |  | $ | 1,288 |  | $ | 801 |
Consumers |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  | $ | 198 |  | $ | 375 |  | $ | 523 |  | $ | 876 |  | $ | 426 |
Revolving Credit Facilities |
In Millions
| Amount of | Amount | Letters of Credit | Amount |
Expiration Date | Facility | Borrowed | Outstanding | Available |
CMS Energy parent |  |  |  |  |  |  |  |  |  |  |  |  |
May 27, 2020 1 |  | $ | 550 |  | $ | - |  | $ | 1 |  | $ | 549 |
Consumers |  |  |  |  |  |  |  |  |  |  |  |  |
May 27, 2020 2 |  | $ | 650 |  | $ | - |  | $ | 9 |  | $ | 641 |
November 23, 2017 2,3 |  |  | 250 |  |  | - |  |  | - |  |  | 250 |
May 9, 2018 2 |  |  | 30 |  |  | - |  |  | 30 |  |  | - |
| 1 |  | Obligations under this facility are secured by Consumers common stock.
| 2 |  | Obligations under this facility are secured by FMBs of Consumers.
| 3 |  | In November 2015, Consumers entered into a new $250 million credit facility and terminated its $250 million accounts receivable sales program.
Issuance Of Stock |
|  |  |  | Optional | Number of | Balance |
|  |  |  | Redemption | Shares | Outstanding |
| Series | Price | Outstanding | (In Millions) |
December 31 |  |  |  |  |  |  |  | 2015 | 2014 |
Cumulative, $100 par value, authorized 7,500,000 shares, with no mandatory redemption |  | $ | 4.50 |  | $ | 110.00 | 373,148 |  | $ | 37 |  | $ | 37 |

X
- Definition Tabular disclosure of major long-term debt transactions. + References No definition available. + Details
Name: | cms_SummaryOfMajorDebtTransactionsTableTextBlock
Namespace Prefix: | cms_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823 Reference 4: http://www.xbrl.org/2003/role/presentationRef -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=26873400&loc=d3e23780-122690 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21538-112644 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21506-112644 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28541-108399 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21521-112644 + Details
Name: | us-gaap_ScheduleOfDebtInstrumentsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- 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://www.xbrl.org/2003/role/presentationRef -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=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -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=26873400&loc=d3e23780-122690 + Details
Name: | us-gaap_ScheduleOfLineOfCreditFacilitiesTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the combined aggregate amount of maturities and sinking fund requirements for all long-term borrowings for each of the five years following the date of the latest balance sheet date presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
Name: | us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of an entity's stock, including par or stated value per share, number and dollar amount of share subscriptions, shares authorized, shares issued, shares outstanding, number and dollar amount of shares held in an employee trust, dividend per share, total dividends, share conversion features, par value plus additional paid in capital, the value of treasury stock and other information necessary to a fair presentation, and EPS information. Stock by class includes common, convertible, and preferred stocks which are not redeemable or redeemable solely at the option of the issuer. Includes preferred stock with redemption features that are solely within the control of the issuer and mandatorily redeemable stock if redemption is required to occur only upon liquidation or termination of the reporting entity. If more than one issue is outstanding, state the title of each issue and the corresponding dollar amount; dollar amount of any shares subscribed but unissued and the deduction of subscriptions receivable there from; number of shares authorized, issued, and outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21506-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=27011957&loc=d3e177068-122764 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21553-112644 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(d),(e)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6403732&loc=d3e21300-112643 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21521-112644 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.28,29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21484-112644 Reference 11: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21538-112644 Reference 12: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21488-112644 Reference 13: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 30 -Article 5 + Details
Name: | us-gaap_ScheduleOfStockByClassTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | dei_LegalEntityAxis=cms_ConsumersEnergyCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |