Consolidated Balance Sheets - USD ($)
$ in Millions
Sep. 30, 2016
Dec. 31, 2015
Current Assets    
Cash and cash equivalents $ 339 $ 266
Restricted cash and cash equivalents 28 19
Accounts receivable and accrued revenue, less allowances 634 774
Notes receivable, less allowances 146 128
Notes receivable held for sale 41 16
Accounts receivable - related parties 12 11
Inventories at average cost    
Gas in underground storage 553 568
Materials and supplies 119 126
Generating plant fuel stock 64 84
Deferred property taxes 152 235
Regulatory assets 16 16
Prepayments and other current assets 94 77
Total current assets 2,198 2,320
Plant, Property, and Equipment    
Plant, property, and equipment, gross 20,698 18,943
Less accumulated depreciation and amortization 5,953 5,747
Plant, property, and equipment, net 14,745 13,196
Construction work in progress 698 1,509
Total plant, property, and equipment 15,443 14,705
Other Non-current Assets    
Regulatory assets 1,765 1,840
Accounts and notes receivable 1,110 1,027
Investments 68 64
Other 258 343
Total other non-current assets 3,201 3,274
Total Assets [1] 20,842 20,299
Current Liabilities    
Current portion of long-term debt, capital leases, and financing obligation 1,005 706
Notes payable 75 249
Accounts payable 539 633
Accounts payable - related parties 9 9
Accrued rate refunds 33 26
Accrued interest 76 106
Accrued taxes 93 349
Regulatory liabilities 80 82
Other current liabilities 159 142
Total current liabilities 2,069 2,302
Non-current Liabilities    
Long-term debt 8,722 8,400
Non-current portion of capital leases and financing obligation 110 118
Regulatory liabilities 2,053 2,088
Postretirement benefits 560 591
Asset retirement obligations 445 439
Deferred investment tax credit 74 56
Deferred income taxes 2,230 2,017
Other non-current liabilities 283 313
Total non-current liabilities 14,477 14,022
Commitments and Contingencies (Notes 2 and 3)
Common stockholder's equity    
Common stock 3 3
Other paid-in capital 4,908 4,837
Accumulated other comprehensive loss (45) (47)
Retained earnings (Accumulated deficit) (607) (855)
Total common stockholders' equity 4,259 3,938
Noncontrolling interests 37 37
Total equity 4,296 3,975
Total Liabilities and Equity 20,842 20,299
Consumers Energy Company [Member]    
Current Assets    
Cash and cash equivalents 21 50
Restricted cash and cash equivalents 28 19
Accounts receivable and accrued revenue, less allowances 616 758
Accounts receivable - related parties 2 17
Inventories at average cost    
Gas in underground storage 553 568
Materials and supplies 114 120
Generating plant fuel stock 60 80
Deferred property taxes 152 235
Regulatory assets 16 16
Prepayments and other current assets 85 66
Total current assets 1,647 1,929
Plant, Property, and Equipment    
Plant, property, and equipment, gross 20,528 18,797
Less accumulated depreciation and amortization 5,893 5,676
Plant, property, and equipment, net 14,635 13,121
Construction work in progress 692 1,467
Total plant, property, and equipment 15,327 14,588
Other Non-current Assets    
Regulatory assets 1,765 1,840
Accounts and notes receivable 56 10
Investments 34 29
Other 151 239
Total other non-current assets 2,006 2,118
Total Assets [1] 18,980 18,635
Current Liabilities    
Current portion of long-term debt, capital leases, and financing obligation 296 220
Notes payable 75 249
Accounts payable 521 613
Accounts payable - related parties 9 15
Accrued rate refunds 33 26
Accrued interest 48 65
Accrued taxes 114 352
Regulatory liabilities 80 82
Other current liabilities 127 109
Total current liabilities 1,303 1,731
Non-current Liabilities    
Long-term debt 5,365 5,183
Non-current portion of capital leases and financing obligation 110 118
Regulatory liabilities 2,053 2,088
Postretirement benefits 500 529
Asset retirement obligations 444 438
Deferred investment tax credit 74 56
Deferred income taxes 2,958 2,710
Other non-current liabilities 212 236
Total non-current liabilities 11,716 11,358
Commitments and Contingencies (Notes 2 and 3)
Common stockholder's equity    
Common stock 841 841
Other paid-in capital 3,999 3,724
Accumulated other comprehensive loss (3) (6)
Retained earnings (Accumulated deficit) 1,087 950
Total common stockholders' equity 5,924 5,509
Preferred stock 37 37
Total equity 5,961 5,546
Total Liabilities and Equity $ 18,980 $ 18,635
[1] CMS Energy and Consumers changed the reporting of debt issuance costs on their consolidated balance sheets in accordance with ASU 2015-03, Simplifying the Presentation of Debt Issuance Costs, as of January 1, 2016, and retrospectively adjusted prior-period amounts for comparability. For further details on the implementation of this standard, see Note 1, New Accounting Standards.