Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012
Current Assets
Cash and cash equivalents	$ 172		$ 93
Restricted cash and cash equivalents	32		29
Accounts receivable and accrued revenue, less allowances	914		855
Notes receivable	63		41
Accounts receivable - related parties	10		10
Accrued power supply revenue			32
Inventories at average cost
Gas in underground storage	660		820
Materials and supplies	107		96
Generating plant fuel stock	114		168
Deferred income taxes	126
Deferred property taxes	202		190
Regulatory assets	40		35
Prepayments and other current assets	86		53
Total current assets	2,526		2,422
Plant, Property, and Equipment
Plant, property, and equipment, gross	16,184		15,592
Less accumulated depreciation and amortization	5,087		5,121
Plant, property, and equipment, net	11,097		10,471
Construction work in progress	1,149		1,080
Total plant, property, and equipment	12,246	[1]	11,551	[1]
Other Non-current Assets
Regulatory assets, noncurrent	1,530		2,287
Accounts and notes receivable, less allowances	646		521
Investments	59	[2]	57	[2]
Other	409		293
Total other non-current assets	2,644		3,158
Total Assets	17,416		17,131
Current Liabilities
Current portion of long-term debt, capital and financing obligations	562		541
Notes payable	170		110
Accounts payable	585		512
Accounts payable - related parties	10		9
Accrued rate refunds	12		6
Accrued interest	96		95
Accrued taxes	297		279
Deferred income taxes			68
Regulatory liabilities, current	67		25
Other current liabilities	146		152
Total current liabilities	1,945		1,797
Non-current Liabilities
Long-term debt	7,101		6,710
Non-current portion of capital and financing obligations	138		153
Regulatory liabilities	2,215		2,101
Postretirement benefits	239		1,451
Asset retirement obligations	325		312
Deferred investment tax credit	40		43
Deferred income taxes	1,616		1,015
Other non-current liabilities	306		311
Total non-current liabilities	11,980		12,096
Commitments and Contingencies (Notes 2, 3, 4, and 6)
Equity
Common stock	3		3
Other paid-in capital	4,715		4,669
Accumulated other comprehensive loss	(22)		(55)
Retained earnings (Accumulated deficit)	(1,242)		(1,423)
Total common stockholders equity	3,454		3,194
Noncontrolling interests	37		44
Total equity	3,491		3,238
Total Liabilities and Equity	17,416		17,131
Consumers Energy Company [Member]
Current Assets
Cash and cash equivalents	18		5
Restricted cash and cash equivalents	31		28
Accounts receivable and accrued revenue, less allowances	902		844
Notes receivable	14
Accounts receivable - related parties	4		1
Accrued power supply revenue			32
Inventories at average cost
Gas in underground storage	653		816
Materials and supplies	103		92
Generating plant fuel stock	113		167
Deferred property taxes	202		190
Regulatory assets	40		35
Prepayments and other current assets	77		45
Total current assets	2,157		2,255
Plant, Property, and Equipment
Plant, property, and equipment, gross	16,044		15,456
Less accumulated depreciation and amortization	5,022		5,061
Plant, property, and equipment, net	11,022		10,395
Construction work in progress	1,147		1,080
Total plant, property, and equipment	12,169	[1]	11,475	[1]
Other Non-current Assets
Regulatory assets, noncurrent	1,530		2,287
Accounts and notes receivable, less allowances	11		17
Investments	29		32
Other	283		209
Total other non-current assets	1,853		2,545
Total Assets	16,179		16,275
Current Liabilities
Current portion of long-term debt, capital and financing obligations	64		63
Notes payable	170		110
Accounts payable	571		501
Accounts payable - related parties	13		11
Accrued rate refunds	12		6
Accrued interest	63		65
Accrued taxes	353		376
Deferred income taxes	55		144
Regulatory liabilities, current	67		25
Other current liabilities	112		109
Total current liabilities	1,480		1,410
Non-current Liabilities
Long-term debt	4,579		4,297
Non-current portion of capital and financing obligations	138		153
Regulatory liabilities	2,215		2,101
Postretirement benefits	179		1,385
Asset retirement obligations	324		311
Deferred investment tax credit	40		43
Deferred income taxes	2,115		1,741
Other non-current liabilities	252		252
Total non-current liabilities	9,842		10,283
Commitments and Contingencies (Notes 2, 3, 4, and 6)
Equity
Common stock	841		841
Other paid-in capital	3,257		3,107
Accumulated other comprehensive loss	(2)		(8)
Retained earnings (Accumulated deficit)	724		598
Total common stockholders equity	4,820		4,538
Preferred stock	37		44
Total equity	4,857		4,582
Total Liabilities and Equity	$ 16,179		$ 16,275

[1] For the year ended December 31, 2013, utility plant additions were $1.3 billion and utility plant retirements were $156 million. Subject to a successful Securitization transaction, Consumers plans to retire seven smaller coal-fueled electric generating units and three smaller gas-fueled electric generating units by April 2016. Accordingly, Consumers removed the net book value of the ten units from plant, property, and equipment and recorded this amount as a regulatory asset at December 31, 2013. As a result, net plant, property, and equipment decreased by $362 million. For additional details, see Note 2, Regulatory Matters.For the year ended December 31, 2012, utility plant additions were $999 million and utility plant retirements were $168 million.

[2] Consumers had no significant equity method investments.