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Financial Instruments | 6 Months Ended
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Jun. 30, 2015
Financial Instruments | 6:FINANCIAL INSTRUMENTS Presented in the following table are the carrying amounts and fair values, by level within the fair value hierarchy, of CMS Energy’s and Consumers’ financial instruments that are not recorded at fair value. The table does not include information on cash, cash equivalents, short-term accounts and notes receivable, short-term investments, and current liabilities since the carrying amounts of these items approximate their fair values because of their short-term nature. For information about assets and liabilities recorded at fair value and for additional details regarding the fair value hierarchy, see Note 5, Fair Value Measurements.
In Millions
| June 30, 2015 |  | December 31, 2014 |
|  | Fair Value |  |  | Fair Value |
| Carrying |  |  |  | Level |  | Carrying |  |  |  | Level |
| Amount | Total | 1 | 2 | 3 |  | Amount | Total | 1 | 2 | 3 |
CMS Energy, including Consumers |
Securities held to maturity |  | $ | 13 |  | $ | 13 |  | $ | - |  | $ | 13 |  | $ | - |  |  | $ | 11 |  | $ | 11 |  | $ | - |  | $ | 11 |  | $ | - |
Notes receivable 1 |  |  | 990 |  |  | 1,052 |  |  | - |  |  | - |  |  | 1,052 |  |  |  | 938 |  |  | 995 |  |  | - |  |  | - |  |  | 995 |
Long-term debt 2 |  |  | 8,538 |  |  | 9,090 |  |  | - |  |  | 8,088 |  |  | 1,002 |  |  |  | 8,535 |  |  | 9,285 |  |  | - |  |  | 8,252 |  |  | 1,033 |
Consumers |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt 3 |  | $ | 5,241 |  | $ | 5,567 |  | $ | - |  | $ | 4,565 |  | $ | 1,002 |  |  | $ | 5,278 |  | $ | 5,749 |  | $ | - |  | $ | 4,716 |  | $ | 1,033 |
| 1 |  | Includes current portion of notes receivable of $113 million at June 30, 2015 and $138 million at December 31, 2014.
| 2 |  | Includes current portion of long-term debt of $498 million at June 30, 2015 and $519 million at December 31, 2014.
| 3 |  | Includes current portion of long-term debt of $100 million at June 30, 2015 and $124 million at December 31, 2014.
Notes receivable consist of EnerBank’s fixed-rate installment loans. EnerBank estimates the fair value of these loans using a discounted cash flows technique that incorporates market interest rates as well as assumptions about the remaining life of the loans and credit risk. CMS Energy and Consumers estimate the fair value of their long-term debt using quoted prices from market trades of the debt, if available. In the absence of quoted prices, CMS Energy and Consumers calculate market yields and prices for the debt using a matrix method that incorporates market data for similarly rated debt. Depending on the information available, other valuation techniques and models may be used that rely on assumptions that cannot be observed or confirmed through market transactions. The effects of third-party credit enhancements are excluded from the fair value measurements of long-term debt. At June 30, 2015 and December 31, 2014, CMS Energy’s long-term debt included $103 million principal amount that was supported by third-party credit enhancements. This entire principal amount was at Consumers. Presented in the following table are CMS Energy’s and Consumers’ investment securities classified as available for sale or held to maturity:
In Millions
| June 30, 2015 |  | December 31, 2014 |
|  | Unrealized | Unrealized | Fair |  |  | Unrealized | Unrealized | Fair |
| Cost | Gains | Losses | Value |  | Cost | Gains | Losses | Value |
CMS Energy, including Consumers |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Available for sale |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
DB SERP |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mutual funds |  | $ | 153 |  | $ | - |  | $ | 3 |  | $ | 150 |  |  | $ | 129 |  | $ | - |  | $ | 2 |  | $ | 127 |
Held to maturity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt securities |  |  | 13 |  |  | - |  |  | - |  |  | 13 |  |  |  | 11 |  |  | - |  |  | - |  |  | 11 |
Consumers |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Available for sale |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
DB SERP |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mutual funds |  | $ | 109 |  | $ | - |  | $ | 2 |  | $ | 107 |  |  | $ | 92 |  | $ | - |  | $ | 2 |  | $ | 90 |
CMS Energy common stock |  |  | 4 |  |  | 22 |  |  | - |  |  | 26 |  |  |  | 5 |  |  | 33 |  |  | - |  |  | 38 |
The mutual funds classified as available for sale hold primarily fixed-income instruments of varying maturities. During the six months ended June 30, 2015, CMS Energy contributed $25 million to the DB SERP, which included a contribution of $17 million by Consumers. Debt securities classified as held to maturity consist primarily of mortgage-backed securities and Utah Housing Corporation bonds held by EnerBank. Consumers recognized a gain of $9 million in January 2015 associated with the transfer of shares of CMS Energy common stock to a related charitable foundation. The gain reflected the excess of fair value over cost of the stock donated and was recorded in other income on Consumers’ consolidated statements of income. The gain was eliminated on CMS Energy’s consolidated statements of income.
Consumers Energy Company [Member] |
Financial Instruments | 6:FINANCIAL INSTRUMENTS Presented in the following table are the carrying amounts and fair values, by level within the fair value hierarchy, of CMS Energy’s and Consumers’ financial instruments that are not recorded at fair value. The table does not include information on cash, cash equivalents, short-term accounts and notes receivable, short-term investments, and current liabilities since the carrying amounts of these items approximate their fair values because of their short-term nature. For information about assets and liabilities recorded at fair value and for additional details regarding the fair value hierarchy, see Note 5, Fair Value Measurements.
In Millions
| June 30, 2015 |  | December 31, 2014 |
|  | Fair Value |  |  | Fair Value |
| Carrying |  |  |  | Level |  | Carrying |  |  |  | Level |
| Amount | Total | 1 | 2 | 3 |  | Amount | Total | 1 | 2 | 3 |
CMS Energy, including Consumers |
Securities held to maturity |  | $ | 13 |  | $ | 13 |  | $ | - |  | $ | 13 |  | $ | - |  |  | $ | 11 |  | $ | 11 |  | $ | - |  | $ | 11 |  | $ | - |
Notes receivable 1 |  |  | 990 |  |  | 1,052 |  |  | - |  |  | - |  |  | 1,052 |  |  |  | 938 |  |  | 995 |  |  | - |  |  | - |  |  | 995 |
Long-term debt 2 |  |  | 8,538 |  |  | 9,090 |  |  | - |  |  | 8,088 |  |  | 1,002 |  |  |  | 8,535 |  |  | 9,285 |  |  | - |  |  | 8,252 |  |  | 1,033 |
Consumers |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt 3 |  | $ | 5,241 |  | $ | 5,567 |  | $ | - |  | $ | 4,565 |  | $ | 1,002 |  |  | $ | 5,278 |  | $ | 5,749 |  | $ | - |  | $ | 4,716 |  | $ | 1,033 |
| 1 |  | Includes current portion of notes receivable of $113 million at June 30, 2015 and $138 million at December 31, 2014.
| 2 |  | Includes current portion of long-term debt of $498 million at June 30, 2015 and $519 million at December 31, 2014.
| 3 |  | Includes current portion of long-term debt of $100 million at June 30, 2015 and $124 million at December 31, 2014.
Notes receivable consist of EnerBank’s fixed-rate installment loans. EnerBank estimates the fair value of these loans using a discounted cash flows technique that incorporates market interest rates as well as assumptions about the remaining life of the loans and credit risk. CMS Energy and Consumers estimate the fair value of their long-term debt using quoted prices from market trades of the debt, if available. In the absence of quoted prices, CMS Energy and Consumers calculate market yields and prices for the debt using a matrix method that incorporates market data for similarly rated debt. Depending on the information available, other valuation techniques and models may be used that rely on assumptions that cannot be observed or confirmed through market transactions. The effects of third-party credit enhancements are excluded from the fair value measurements of long-term debt. At June 30, 2015 and December 31, 2014, CMS Energy’s long-term debt included $103 million principal amount that was supported by third-party credit enhancements. This entire principal amount was at Consumers. Presented in the following table are CMS Energy’s and Consumers’ investment securities classified as available for sale or held to maturity:
In Millions
| June 30, 2015 |  | December 31, 2014 |
|  | Unrealized | Unrealized | Fair |  |  | Unrealized | Unrealized | Fair |
| Cost | Gains | Losses | Value |  | Cost | Gains | Losses | Value |
CMS Energy, including Consumers |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Available for sale |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
DB SERP |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mutual funds |  | $ | 153 |  | $ | - |  | $ | 3 |  | $ | 150 |  |  | $ | 129 |  | $ | - |  | $ | 2 |  | $ | 127 |
Held to maturity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt securities |  |  | 13 |  |  | - |  |  | - |  |  | 13 |  |  |  | 11 |  |  | - |  |  | - |  |  | 11 |
Consumers |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Available for sale |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
DB SERP |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mutual funds |  | $ | 109 |  | $ | - |  | $ | 2 |  | $ | 107 |  |  | $ | 92 |  | $ | - |  | $ | 2 |  | $ | 90 |
CMS Energy common stock |  |  | 4 |  |  | 22 |  |  | - |  |  | 26 |  |  |  | 5 |  |  | 33 |  |  | - |  |  | 38 |
The mutual funds classified as available for sale hold primarily fixed-income instruments of varying maturities. During the six months ended June 30, 2015, CMS Energy contributed $25 million to the DB SERP, which included a contribution of $17 million by Consumers. Debt securities classified as held to maturity consist primarily of mortgage-backed securities and Utah Housing Corporation bonds held by EnerBank. Consumers recognized a gain of $9 million in January 2015 associated with the transfer of shares of CMS Energy common stock to a related charitable foundation. The gain reflected the excess of fair value over cost of the stock donated and was recorded in other income on Consumers’ consolidated statements of income. The gain was eliminated on CMS Energy’s consolidated statements of income.

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