Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Current Assets
Cash and cash equivalents	$ 140	$ 153
Restricted cash and cash equivalents	17	21
Accounts receivable and accrued revenue, less allowances of $20 in both periods	886	964
Notes receivable, less allowances of $33 in 2019 and $24 in 2018	223	233
Notes receivable held for sale	19	0
Accounts receivable – related parties	17	14
Accrued gas revenue	0	16
Inventories at average cost
Gas in underground storage	399	450
Materials and supplies	140	143
Generating plant fuel stock	66	57
Deferred property taxes	305	279
Regulatory assets	33	37
Prepayments and other current assets	86	101
Total current assets	2,331	2,468
Plant, Property, and Equipment
Plant, property, and equipment, gross	25,390	24,400
Less accumulated depreciation and amortization	7,360	7,037
Plant, property, and equipment, net	18,030	17,363
Construction work in progress	896	763
Total plant, property, and equipment	18,926	18,126
Other Non‑current Assets
Regulatory assets	2,489	1,743
Accounts and notes receivable	2,281	1,645
Investments	71	69
Other	739	478
Total other non‑current assets	5,580	3,935
Total Assets	26,837	24,529
Current Liabilities
Current portion of long-term debt, finance leases, and other financing	1,130	996
Notes payable	90	97
Accounts payable	622	723
Accounts payable – related parties	13	10
Accrued rate refunds	35	4
Accrued interest	104	94
Accrued taxes	437	398
Regulatory liabilities	87	155
Other current liabilities	186	147
Total current liabilities	2,704	2,624
Non‑current Liabilities
Long-term debt	11,951	10,615
Non-current portion of finance leases and other financing	76	69
Regulatory liabilities	3,742	3,681
Postretirement benefits	674	436
Asset retirement obligations	477	432
Deferred investment tax credit	120	99
Deferred income taxes	1,655	1,487
Other non‑current liabilities	383	294
Total non‑current liabilities	19,078	17,113
Commitments and Contingencies
Common stockholders’ equity
Common stock, authorized 350.0 shares; outstanding 283.9 shares in 2019 and 283.4 shares in 2018	3	3
Other paid-in capital	5,113	5,088
Accumulated other comprehensive loss	(73)	(65)
Accumulated deficit	(25)	(271)
Total common stockholders’ equity	5,018	4,755
Noncontrolling interests	37	37
Total equity	5,055	4,792
Total Liabilities and Equity	26,837	24,529
Consumers Energy Company
Current Assets
Cash and cash equivalents	11	39
Restricted cash and cash equivalents	17	17
Accounts receivable and accrued revenue, less allowances of $20 in both periods	827	855
Accounts receivable – related parties	9	15
Accrued gas revenue	0	16
Inventories at average cost
Gas in underground storage	399	450
Materials and supplies	135	137
Generating plant fuel stock	63	52
Deferred property taxes	305	279
Regulatory assets	33	37
Prepayments and other current assets	73	83
Total current assets	1,872	1,980
Plant, property, and equipment, gross	24,963	23,963
Accumulated depreciation and amortization	7,272	6,958
Plant, Property, and Equipment
Plant, property, and equipment, net	17,691	17,005
Construction work in progress	879	756
Total plant, property, and equipment	18,570	17,761
Other Non‑current Assets
Regulatory assets	2,489	1,743
Accounts and notes receivable	29	27
Accounts and notes receivable – related parties	102	104
Other	637	410
Total other non‑current assets	3,257	2,284
Total Assets	23,699	22,025
Current Liabilities
Current portion of long-term debt, finance leases, and other financing	221	48
Notes payable	90	97
Accounts payable	593	685
Accounts payable – related parties	20	14
Accrued rate refunds	35	4
Accrued interest	67	59
Accrued taxes	481	436
Regulatory liabilities	87	155
Other current liabilities	118	120
Total current liabilities	1,712	1,618
Non‑current Liabilities
Long-term debt	7,048	6,779
Non-current portion of finance leases and other financing	76	69
Regulatory liabilities	3,742	3,681
Postretirement benefits	622	392
Asset retirement obligations	474	428
Deferred investment tax credit	120	99
Deferred income taxes	1,864	1,809
Other non‑current liabilities	304	230
Total non‑current liabilities	14,250	13,487
Commitments and Contingencies
Common stockholders’ equity
Common stock, authorized 350.0 shares; outstanding 283.9 shares in 2019 and 283.4 shares in 2018	841	841
Other paid-in capital	5,374	4,699
Accumulated other comprehensive loss	(28)	(21)
Accumulated deficit	1,513	1,364
Total common stockholders’ equity	7,700	6,883
Cumulative preferred stock, $4.50 series	37	37
Total equity	7,737	6,920
Total Liabilities and Equity	$ 23,699	$ 22,025