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Consolidated Balance Sheets - USD ($) $ in Millions | Jun. 30, 2015 | Dec. 31, 2014
--- | --- | ---
Current Assets |  |
Cash and cash equivalents | $ 477 | $ 207
Restricted cash and cash equivalents | 40 | 37
Accounts receivable and accrued revenue, less allowances | 669 | 881
Notes receivable | 114 | 98
Notes receivable held for sale |  | 41
Accounts receivable - related parties | 12 | 11
Accrued gas revenue |  | 27
Inventories at average cost |  |
Gas in underground storage | 459 | 681
Materials and supplies | 118 | 117
Generating plant fuel stock | 106 | 120
Deferred income taxes | 17 |
Deferred property taxes | 159 | 216
Regulatory assets | 31 | 89
Prepayments and other current assets | 89 | 72
Total current assets | 2,291 | 2,597
Plant, Property, and Equipment |  |
Plant, property, and equipment, gross | 18,217 | 17,721
Less accumulated depreciation and amortization | 5,633 | 5,415
Plant, property, and equipment, net | 12,584 | 12,306
Construction work in progress | 1,191 | 1,106
Total plant, property, and equipment | 13,775 | 13,412
Other Non-current Assets |  |
Regulatory assets | 1,908 | 1,956
Accounts and notes receivable, less allowances | 884 | 807
Investments | 61 | 61
Other | 319 | 352
Total other non-current assets | 3,172 | 3,176
Total Assets | 19,238 | 19,185
Current Liabilities |  |
Current portion of long-term debt, capital leases, and financing obligation | 519 | 540
Notes payable |  | 60
Accounts payable | 558 | 678
Accounts payable - related parties | 6 | 10
Accrued rate refunds | 27 | 6
Accrued interest | 103 | 108
Accrued taxes | 235 | 316
Deferred income taxes |  | 66
Regulatory liabilities | 69 | 67
Other current liabilities | 123 | 163
Total current liabilities | 1,640 | 2,014
Non-current Liabilities |  |
Long-term debt | 8,040 | 8,016
Non-current portion of capital leases and financing obligation | 113 | 123
Regulatory liabilities | 2,136 | 2,095
Postretirement benefits | 846 | 872
Asset retirement obligations | 348 | 340
Deferred investment tax credit | 57 | 37
Deferred income taxes | 1,899 | 1,682
Other non-current liabilities | 304 | 299
Total non-current liabilities | $ 13,743 | $ 13,464
Commitments and Contingencies (Notes 2 and 3) |  |
Equity |  |
Common stock | $ 3 | $ 3
Other paid-in capital | 4,812 | 4,774
Accumulated other comprehensive loss | (48) | (49)
Retained earnings (Accumulated deficit) | (949) | (1,058)
Total common stockholders' equity | 3,818 | 3,670
Noncontrolling interests | 37 | 37
Total equity | 3,855 | 3,707
Total Liabilities and Equity | 19,238 | 19,185
Consumers Energy Company [Member] |  |
Current Assets |  |
Cash and cash equivalents | 397 | 71
Restricted cash and cash equivalents | 40 | 37
Accounts receivable and accrued revenue, less allowances | 655 | 863
Accounts receivable - related parties | 1 | 1
Accrued gas revenue |  | 27
Inventories at average cost |  |
Gas in underground storage | 459 | 681
Materials and supplies | 113 | 113
Generating plant fuel stock | 100 | 112
Deferred property taxes | 159 | 216
Regulatory assets | 31 | 89
Prepayments and other current assets | 83 | 63
Total current assets | 2,038 | 2,273
Plant, Property, and Equipment |  |
Plant, property, and equipment, gross | 18,074 | 17,580
Less accumulated depreciation and amortization | 5,564 | 5,346
Plant, property, and equipment, net | 12,510 | 12,234
Construction work in progress | 1,184 | 1,103
Total plant, property, and equipment | 13,694 | 13,337
Other Non-current Assets |  |
Regulatory assets | 1,908 | 1,956
Accounts and notes receivable, less allowances | 7 | 7
Investments | 26 | 38
Other | 194 | 236
Total other non-current assets | 2,135 | 2,237
Total Assets | 17,867 | 17,847
Current Liabilities |  |
Current portion of long-term debt, capital leases, and financing obligation | 122 | 145
Notes payable |  | 60
Accounts payable | 540 | 662
Accounts payable - related parties | 11 | 12
Accrued rate refunds | 27 | 6
Accrued interest | 64 | 70
Accrued taxes | 166 | 149
Deferred income taxes | 54 | 80
Regulatory liabilities | 69 | 67
Other current liabilities | 93 | 135
Total current liabilities | 1,146 | 1,386
Non-current Liabilities |  |
Long-term debt | 5,141 | 5,154
Non-current portion of capital leases and financing obligation | 113 | 123
Regulatory liabilities | 2,136 | 2,095
Postretirement benefits | 768 | 793
Asset retirement obligations | 347 | 339
Deferred investment tax credit | 57 | 37
Deferred income taxes | 2,450 | 2,406
Other non-current liabilities | 243 | 237
Total non-current liabilities | $ 11,255 | $ 11,184
Commitments and Contingencies (Notes 2 and 3) |  |
Equity |  |
Common stock | $ 841 | $ 841
Other paid-in capital | 3,724 | 3,574
Accumulated other comprehensive loss | (12) | (7)
Retained earnings (Accumulated deficit) | 876 | 832
Total common stockholders' equity | 5,429 | 5,240
Preferred stock | 37 | 37
Total equity | 5,466 | 5,277
Total Liabilities and Equity | $ 17,867 | $ 17,847

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- Definition Period end amount of construction work in progress in public utility. + References No definition available. + Details
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- Definition Period end amount of total net PPE. + References No definition available. + Details
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- Definition Carrying amount as of the balance sheet date of capitalized costs of regulated entities that are expected to be recovered through revenue sources within one year or the normal operating cycle, if longer. Such costs are capitalized if they meet both of the following criteria: a. It is probable that future revenue in an amount at least equal to the capitalized cost will result from inclusion of that cost in allowable costs for rate-making purposes. b. Based on available evidence, the future revenue will be provided to permit recovery of the previously incurred cost rather than to provide for expected levels of similar future costs. If the revenue will be provided through an automatic rate-adjustment clause, this criterion requires that the regulator's intent clearly be to permit recovery of the previously incurred cost. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 340 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6499975&loc=d3e44250-110382 + Details
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- Definition Carrying amount as of the balance sheet date of capitalized costs of regulated entities that are not expected to be recovered through revenue sources within one year or the normal operating cycle if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 340 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6499975&loc=d3e44250-110382 + Details
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- Definition The amount for the individual regulatory current liability as itemized in a table of regulatory current liabilities as of the end of the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 405 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6500807&loc=d3e48068-110394 + Details
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- Definition The amount for the individual regulatory noncurrent liability as itemized in a table of regulatory noncurrent liabilities as of the end of the period. + 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 210.5-02.24) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against short-term borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. For a classified balance sheet represents the current portion only (the noncurrent portion has a separate concept); there is a separate and distinct element for unclassified presentations. + 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 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The cumulative amount of the reporting entity's undistributed earnings or deficit. + 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 210.5-02.31(a)(3)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 + Details
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- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 4.E) -URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74512-122707 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29-31) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 4 -Section E + Details
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- Definition Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4I -URI http://asc.fasb.org/extlink&oid=35736750&loc=SL4590271-111686 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=51664549&loc=SL4568740-111683 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=51664549&loc=SL4568447-111683 + Details
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- Definition Carrying value as of the balance sheet date of obligations incurred and payable for statutory income, sales, use, payroll, excise, real, property and other taxes. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle 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 210.5-02.19,20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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