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Fair Value Measurements (Tables) | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2011 | Jun. 30, 2011 | Dec. 31, 2010
Assets and Liabilities Measured at Fair Value on a Recurring Basis |  |
In Millions |
|  | Total |  |  | Level 1 |  |  | Level 2 |  |  | Level 3 |
CMS Energy, including Consumers |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash equivalents |  | $ | 875 |  |  | $ | 875 |  |  | $ | — |  |  | $ | — |
Restricted cash equivalents |  |  | 15 |  |  |  | 15 |  |  |  | — |  |  |  | — |
Nonqualified deferred compensation plan assets |  |  | 4 |  |  |  | 4 |  |  |  | — |  |  |  | — |
SERP |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mutual fund |  |  | 90 |  |  |  | 90 |  |  |  | — |  |  |  | — |
State and municipal bonds |  |  | 26 |  |  |  | — |  |  |  | 26 |  |  |  | — |
Derivative instruments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commodity contracts1 |  |  | 3 |  |  |  | — |  |  |  | — |  |  |  | 3 |
Total2 |  | $ | 1,013 |  |  | $ | 984 |  |  | $ | 26 |  |  | $ | 3 |
Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Nonqualified deferred compensation plan liabilities |  | $ | 4 |  |  | $ | 4 |  |  | $ | — |  |  | $ | — |
Derivative instruments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commodity contracts3 |  |  | 3 |  |  |  | — |  |  |  | — |  |  |  | 3 |
Total4 |  | $ | 7 |  |  | $ | 4 |  |  | $ | — |  |  | $ | 3 |
Consumers |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash equivalents |  | $ | 667 |  |  | $ | 667 |  |  | $ | — |  |  | $ | — |
Restricted cash equivalents |  |  | 14 |  |  |  | 14 |  |  |  | — |  |  |  | — |
CMS Energy common stock |  |  | 31 |  |  |  | 31 |  |  |  | — |  |  |  | — |
Nonqualified deferred compensation plan assets |  |  | 3 |  |  |  | 3 |  |  |  | — |  |  |  | — |
SERP |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mutual fund |  |  | 59 |  |  |  | 59 |  |  |  | — |  |  |  | — |
State and municipal bonds |  |  | 17 |  |  |  | — |  |  |  | 17 |  |  |  | — |
Derivative instruments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commodity contracts |  |  | 3 |  |  |  | — |  |  |  | — |  |  |  | 3 |
Total5 |  | $ | 794 |  |  | $ | 774 |  |  | $ | 17 |  |  | $ | 3 |
Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Nonqualified deferred compensation plan liabilities |  | $ | 3 |  |  | $ | 3 |  |  | $ | — |  |  | $ | — |
Total |  | $ | 3 |  |  | $ | 3 |  |  | $ | — |  |  | $ | — |
1 |  | This amount is gross and excludes the impact of offsetting derivative assets and liabilities under master netting arrangements, which was less than $1 million at June 30, 2011.
2 |  | At June 30, 2011, CMS Energy's assets classified as Level 3 represented less than one percent of CMS Energy's total assets measured at fair value.
3 |  | This amount is gross and excludes the impact of offsetting derivative assets and liabilities under master netting arrangements and offsetting cash margin deposits paid by CMS ERM to other parties, which was less than $1 million at June 30, 2011.
4 |  | At June 30, 2011, CMS Energy's liabilities classified as Level 3 represented 43 percent of CMS Energy's total liabilities measured at fair value. The Level 3 liabilities consisted primarily of an electricity sales agreement held by CMS ERM.
5 |  | At June 30, 2011, Consumers' assets classified as Level 3 represented less than one percent of Consumers' total assets measured at fair value.
In Millions |
|  | Total |  |  | Level 1 |  |  | Level 2 |  |  | Level 3 |
CMS Energy, including Consumers |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash equivalents |  | $ | 183 |  |  | $ | 183 |  |  | $ | — |  |  | $ | — |
Restricted cash equivalents |  |  | 6 |  |  |  | 6 |  |  |  | — |  |  |  | — |
Nonqualified deferred compensation plan assets |  |  | 6 |  |  |  | 6 |  |  |  | — |  |  |  | — |
SERP |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash equivalents |  |  | 1 |  |  |  | 1 |  |  |  | — |  |  |  | — |
Mutual fund |  |  | 62 |  |  |  | 62 |  |  |  | — |  |  |  | — |
State and municipal bonds |  |  | 28 |  |  |  | — |  |  |  | 28 |  |  |  | — |
Derivative instruments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commodity contracts1 |  |  | 1 |  |  |  | — |  |  |  | — |  |  |  | 1 |
Total2 |  | $ | 287 |  |  | $ | 258 |  |  | $ | 28 |  |  | $ | 1 |
Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Nonqualified deferred compensation plan liabilities |  | $ | 6 |  |  | $ | 6 |  |  | $ | — |  |  | $ | — |
Derivative instruments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commodity contracts3 |  |  | 4 |  |  |  | — |  |  |  | — |  |  |  | 4 |
Total4 |  | $ | 10 |  |  | $ | 6 |  |  | $ | — |  |  | $ | 4 |
Consumers |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash equivalents |  | $ | 19 |  |  | $ | 19 |  |  | $ | — |  |  | $ | — |
Restricted cash equivalents |  |  | 6 |  |  |  | 6 |  |  |  | — |  |  |  | — |
CMS Energy common stock |  |  | 34 |  |  |  | 34 |  |  |  | — |  |  |  | — |
Nonqualified deferred compensation plan assets |  |  | 4 |  |  |  | 4 |  |  |  | — |  |  |  | — |
SERP |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash equivalents |  |  | 1 |  |  |  | 1 |  |  |  | — |  |  |  | — |
Mutual fund |  |  | 39 |  |  |  | 39 |  |  |  | — |  |  |  | — |
State and municipal bonds |  |  | 17 |  |  |  | — |  |  |  | 17 |  |  |  | — |
Derivative instruments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commodity contracts |  |  | 1 |  |  |  | — |  |  |  | — |  |  |  | 1 |
Total5 |  | $ | 121 |  |  | $ | 103 |  |  | $ | 17 |  |  | $ | 1 |
Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Nonqualified deferred compensation plan liabilities |  | $ | 4 |  |  | $ | 4 |  |  | $ | — |  |  | $ | — |
Total |  | $ | 4 |  |  | $ | 4 |  |  | $ | — |  |  | $ | — |
1 |  | This amount is gross and excludes the impact of offsetting derivative assets and liabilities under master netting arrangements, which was less than $1 million at December 31, 2010.
2 |  | At December 31, 2010, CMS Energy's assets classified as Level 3 represented less than one percent of CMS Energy's total assets measured at fair value.
3 |  | This amount is gross and excludes the impact of offsetting derivative assets and liabilities under master netting arrangements and offsetting cash margin deposits paid by CMS ERM to other parties, which was less than $1 million at December 31, 2010.
4 |  | At December 31, 2010, CMS Energy's liabilities classified as Level 3 represented 40 percent of CMS Energy's total liabilities measured at fair value. The Level 3 liabilities consisted primarily of an electricity sales agreement held by CMS ERM.
5 |  | At December 31, 2010, Consumers' assets classified as Level 3 represented one percent of Consumers' total assets measured at fair value.
Assets and Liabilities Measured at Fair Value on a Recurring Basis using Significant Level 3 Inputs |  |
In Millions |
Three Months Ended June 30 |  | 2011 |  |  | 2010 |
Balance at April 1 |  | $ | (2 | ) |  | $ | (3 | )
Total losses included in earnings1 |  |  | (1 | ) |  |  | (2 | )
Total gains offset through regulatory accounting |  |  | 3 |  |  |  | 1 |
Settlements |  |  | — |  |  |  | (1 | )
Balance at June 30 |  | $ | — |  |  | $ | (5 | )
Unrealized losses included in earnings for the three months ended June 30 relating to assets and liabilities still held at June 301 |  | $ | — |  |  | $ | (2 | )
In Millions |
Six Months Ended June 30 |  | 2011 |  |  | 2010 |
Balance at January 1 |  | $ | (3 | ) |  | $ | (8 | )
Total gains included in earnings1 |  |  | — |  |  |  | 2 |
Total gains offset through regulatory accounting |  |  | 3 |  |  |  | 1 |
Settlements |  |  | — |  |  |  | — |
Balance at June 30 |  | $ | — |  |  | $ | (5 | )
Unrealized gains included in earnings for the six months ended June 30 relating to assets and liabilities still held at June 301 |  | $ | 1 |  |  | $ | 2 |
1 |  | CMS Energy records realized and unrealized gains and losses for Level 3 recurring fair values in earnings as a component of operating revenue or maintenance and other operating expenses on its consolidated statements of income.
Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis |  |
In Millions |
|  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Losses |
CMS Energy, including Consumers |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Assets held for sale |  | $ | — |  |  | $ | — |  |  | $ | 7 |  |  | $ | (4 | )
Consumers Energy Company [Member] |  |  |
Assets and Liabilities Measured at Fair Value on a Recurring Basis |  |
In Millions |
|  | Total |  |  | Level 1 |  |  | Level 2 |  |  | Level 3 |
CMS Energy, including Consumers |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash equivalents |  | $ | 875 |  |  | $ | 875 |  |  | $ | — |  |  | $ | — |
Restricted cash equivalents |  |  | 15 |  |  |  | 15 |  |  |  | — |  |  |  | — |
Nonqualified deferred compensation plan assets |  |  | 4 |  |  |  | 4 |  |  |  | — |  |  |  | — |
SERP |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mutual fund |  |  | 90 |  |  |  | 90 |  |  |  | — |  |  |  | — |
State and municipal bonds |  |  | 26 |  |  |  | — |  |  |  | 26 |  |  |  | — |
Derivative instruments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commodity contracts1 |  |  | 3 |  |  |  | — |  |  |  | — |  |  |  | 3 |
Total2 |  | $ | 1,013 |  |  | $ | 984 |  |  | $ | 26 |  |  | $ | 3 |
Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Nonqualified deferred compensation plan liabilities |  | $ | 4 |  |  | $ | 4 |  |  | $ | — |  |  | $ | — |
Derivative instruments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commodity contracts3 |  |  | 3 |  |  |  | — |  |  |  | — |  |  |  | 3 |
Total4 |  | $ | 7 |  |  | $ | 4 |  |  | $ | — |  |  | $ | 3 |
Consumers |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash equivalents |  | $ | 667 |  |  | $ | 667 |  |  | $ | — |  |  | $ | — |
Restricted cash equivalents |  |  | 14 |  |  |  | 14 |  |  |  | — |  |  |  | — |
CMS Energy common stock |  |  | 31 |  |  |  | 31 |  |  |  | — |  |  |  | — |
Nonqualified deferred compensation plan assets |  |  | 3 |  |  |  | 3 |  |  |  | — |  |  |  | — |
SERP |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mutual fund |  |  | 59 |  |  |  | 59 |  |  |  | — |  |  |  | — |
State and municipal bonds |  |  | 17 |  |  |  | — |  |  |  | 17 |  |  |  | — |
Derivative instruments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commodity contracts |  |  | 3 |  |  |  | — |  |  |  | — |  |  |  | 3 |
Total5 |  | $ | 794 |  |  | $ | 774 |  |  | $ | 17 |  |  | $ | 3 |
Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Nonqualified deferred compensation plan liabilities |  | $ | 3 |  |  | $ | 3 |  |  | $ | — |  |  | $ | — |
Total |  | $ | 3 |  |  | $ | 3 |  |  | $ | — |  |  | $ | — |
1 |  | This amount is gross and excludes the impact of offsetting derivative assets and liabilities under master netting arrangements, which was less than $1 million at June 30, 2011.
2 |  | At June 30, 2011, CMS Energy's assets classified as Level 3 represented less than one percent of CMS Energy's total assets measured at fair value.
3 |  | This amount is gross and excludes the impact of offsetting derivative assets and liabilities under master netting arrangements and offsetting cash margin deposits paid by CMS ERM to other parties, which was less than $1 million at June 30, 2011.
4 |  | At June 30, 2011, CMS Energy's liabilities classified as Level 3 represented 43 percent of CMS Energy's total liabilities measured at fair value. The Level 3 liabilities consisted primarily of an electricity sales agreement held by CMS ERM.
5 |  | At June 30, 2011, Consumers' assets classified as Level 3 represented less than one percent of Consumers' total assets measured at fair value.
In Millions |
|  | Total |  |  | Level 1 |  |  | Level 2 |  |  | Level 3 |
CMS Energy, including Consumers |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash equivalents |  | $ | 183 |  |  | $ | 183 |  |  | $ | — |  |  | $ | — |
Restricted cash equivalents |  |  | 6 |  |  |  | 6 |  |  |  | — |  |  |  | — |
Nonqualified deferred compensation plan assets |  |  | 6 |  |  |  | 6 |  |  |  | — |  |  |  | — |
SERP |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash equivalents |  |  | 1 |  |  |  | 1 |  |  |  | — |  |  |  | — |
Mutual fund |  |  | 62 |  |  |  | 62 |  |  |  | — |  |  |  | — |
State and municipal bonds |  |  | 28 |  |  |  | — |  |  |  | 28 |  |  |  | — |
Derivative instruments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commodity contracts1 |  |  | 1 |  |  |  | — |  |  |  | — |  |  |  | 1 |
Total2 |  | $ | 287 |  |  | $ | 258 |  |  | $ | 28 |  |  | $ | 1 |
Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Nonqualified deferred compensation plan liabilities |  | $ | 6 |  |  | $ | 6 |  |  | $ | — |  |  | $ | — |
Derivative instruments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commodity contracts3 |  |  | 4 |  |  |  | — |  |  |  | — |  |  |  | 4 |
Total4 |  | $ | 10 |  |  | $ | 6 |  |  | $ | — |  |  | $ | 4 |
Consumers |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash equivalents |  | $ | 19 |  |  | $ | 19 |  |  | $ | — |  |  | $ | — |
Restricted cash equivalents |  |  | 6 |  |  |  | 6 |  |  |  | — |  |  |  | — |
CMS Energy common stock |  |  | 34 |  |  |  | 34 |  |  |  | — |  |  |  | — |
Nonqualified deferred compensation plan assets |  |  | 4 |  |  |  | 4 |  |  |  | — |  |  |  | — |
SERP |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash equivalents |  |  | 1 |  |  |  | 1 |  |  |  | — |  |  |  | — |
Mutual fund |  |  | 39 |  |  |  | 39 |  |  |  | — |  |  |  | — |
State and municipal bonds |  |  | 17 |  |  |  | — |  |  |  | 17 |  |  |  | — |
Derivative instruments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commodity contracts |  |  | 1 |  |  |  | — |  |  |  | — |  |  |  | 1 |
Total5 |  | $ | 121 |  |  | $ | 103 |  |  | $ | 17 |  |  | $ | 1 |
Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Nonqualified deferred compensation plan liabilities |  | $ | 4 |  |  | $ | 4 |  |  | $ | — |  |  | $ | — |
Total |  | $ | 4 |  |  | $ | 4 |  |  | $ | — |  |  | $ | — |
1 |  | This amount is gross and excludes the impact of offsetting derivative assets and liabilities under master netting arrangements, which was less than $1 million at December 31, 2010.
2 |  | At December 31, 2010, CMS Energy's assets classified as Level 3 represented less than one percent of CMS Energy's total assets measured at fair value.
3 |  | This amount is gross and excludes the impact of offsetting derivative assets and liabilities under master netting arrangements and offsetting cash margin deposits paid by CMS ERM to other parties, which was less than $1 million at December 31, 2010.
4 |  | At December 31, 2010, CMS Energy's liabilities classified as Level 3 represented 40 percent of CMS Energy's total liabilities measured at fair value. The Level 3 liabilities consisted primarily of an electricity sales agreement held by CMS ERM.
5 |  | At December 31, 2010, Consumers' assets classified as Level 3 represented one percent of Consumers' total assets measured at fair value.
Assets and Liabilities Measured at Fair Value on a Recurring Basis using Significant Level 3 Inputs |
In Millions |
Three Months Ended June 30 |  | 2011 |  |  | 2010 |
Balance at April 1 |  | $ | — |  |  | $ | — |
Total gains offset through regulatory accounting |  |  | 3 |  |  |  | 1 |
Settlements |  |  | — |  |  |  | (1 | )
Balance at June 30 |  | $ | 3 |  |  | $ | — |
In Millions |
Six Months Ended June 30 |  | 2011 |  |  | 2010 |
Balance at January 1 |  | $ | 1 |  |  | $ | — |
Total gains offset through regulatory accounting |  |  | 3 |  |  |  | 1 |
Settlements |  |  | (1 | ) |  |  | (1 | )
Balance at June 30 |  | $ | 3 |  |  | $ | — |

X
- Definition Tabular disclosure of the fair value measurement of assets and liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets) and gains or losses recognized in other comprehensive income, and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issuances, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs), by class of asset and liability. + Details
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- Definition Tabular disclosure of assets and liabilities by class, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a nonrecurring basis in periods after initial recognition (for example, impaired assets). The disclosures that may be required or desired include: (a) the fair value measurements recorded during the period and the reasons for the measurements and (b) the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets or liabilities (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). Where the quoted price in an active market for the identical liability is not available, the Level 1 input is the quoted price of an identical liability when traded as an asset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 157 -Paragraph 33 -Subparagraph a, b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19296-110258 + Details
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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic 820 -SubTopic 10 -Publisher FASB -Number -Article -Subparagraph -Name Accounting Standards Codification -Paragraph 1 -Section 50 -URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19190-110258 + Details
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