Consolidated Statements of Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Operating Revenue	$ 1,445	$ 1,492	$ 3,504	$ 3,445
Operating Expenses
Fuel for electric generation	119	115	261	247
Purchased power – related parties	16	19	34	38
Maintenance and other operating expenses	343	326	697	636
Depreciation and amortization	216	204	514	483
General taxes	71	68	177	155
Total operating expenses	1,227	1,237	2,927	2,827
Operating Income	218	255	577	618
Other Income (Expense)
Interest income	2	4	3	6
Allowance for equity funds used during construction	3	1	5	2
Income from equity method investees	2	4	1	7
Nonoperating retirement benefits, net	23	22	46	46
Other income	2	0	3	1
Other expense	(5)	(9)	(8)	(11)
Total other income	27	22	50	51
Interest Charges
Interest on long-term debt	110	103	216	203
Interest expense – related parties	3	0	3	0
Other interest expense	19	10	35	21
Allowance for borrowed funds used during construction	(1)	(1)	(2)	(1)
Total interest charges	131	112	252	223
Income Before Income Taxes	114	165	375	446
Income Tax Expense	20	25	68	65
Net Income	94	140	307	381
Income Attributable to Noncontrolling Interests	1	1	1	1
Net Income Available to Common Stockholders	$ 93	$ 139	$ 306	$ 380
Basic earnings per average common share (in dollars per share)	$ 0.33	$ 0.49	$ 1.08	$ 1.35
Diluted earnings per average common share (in dollars per share)	$ 0.33	$ 0.49	$ 1.08	$ 1.35
Consumers Energy Company
Operating Revenue	$ 1,334	$ 1,395	$ 3,277	$ 3,250
Operating Expenses
Fuel for electric generation	88	86	194	188
Purchased and interchange power	350	388	724	766
Purchased power – related parties	16	19	34	39
Cost of gas sold	104	108	505	485
Maintenance and other operating expenses	320	298	639	580
Depreciation and amortization	212	201	506	478
General taxes	69	66	172	151
Total operating expenses	1,159	1,166	2,774	2,687
Operating Income	175	229	503	563
Other Income (Expense)
Interest income	1	2	2	4
Interest and dividend income – related parties	1	0	2	0
Allowance for equity funds used during construction	3	1	5	2
Nonoperating retirement benefits, net	22	20	43	42
Other income	1	0	2	1
Other expense	(5)	(3)	(8)	(5)
Total other income	23	20	46	44
Interest Charges
Interest on long-term debt	68	67	137	134
Interest expense – related parties	3	0	3	0
Other interest expense	4	4	7	9
Allowance for borrowed funds used during construction	(1)	(1)	(2)	(1)
Total interest charges	74	70	145	142
Income Before Income Taxes	124	179	404	465
Income Tax Expense	26	27	80	71
Net Income	98	152	324	394
Preferred Stock Dividends	1	1	1	1
Net Income Available to Common Stockholder	97	151	323	393
Purchased and interchange power
Operating Expenses
Cost of sales	356	393	734	775
Cost of gas sold
Operating Expenses
Cost of sales	$ 106	$ 112	$ 510	$ 493