Consolidated Statements of Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Operating Revenue	$ 1,492	$ 1,449	$ 3,445	$ 3,278
Operating Expenses
Fuel for electric generation	115	125	247	242
Purchased and interchange power	393	373	775	706
Purchased power – related parties	19	21	38	43
Cost of gas sold	112	111	493	447
Maintenance and other operating expenses	326	315	636	605
Depreciation and amortization	204	197	483	459
General taxes	68	66	155	147
Total operating expenses	1,237	1,208	2,827	2,649
Operating Income	255	241	618	629
Other Income (Expense)
Interest income	4	2	6	7
Allowance for equity funds used during construction	1	2	2	4
Income from equity method investees	4	3	7	7
Nonoperating retirement benefits, net	22	4	46	7
Other income	0	0	1	2
Other expense	(9)	(2)	(11)	(4)
Total other income	22	9	51	23
Interest Charges
Interest on long-term debt	103	103	203	203
Other interest expense	10	8	21	16
Allowance for borrowed funds used during construction	(1)	(1)	(1)	(2)
Total interest charges	112	110	223	217
Income Before Income Taxes	165	140	446	435
Income Tax Expense	25	47	65	143
Net Income	140	93	381	292
Income Attributable to Noncontrolling Interests	1	1	1	1
Net Income Available to Common Stockholders	$ 139	$ 92	$ 380	$ 291
Basic earnings per average common share (in dollars per share)	$ 0.49	$ 0.33	$ 1.35	$ 1.04
Diluted earnings per average common share (in dollars per share)	0.49	0.33	1.35	1.04
Dividends declared per common share (in dollars per share)	$ 0.3575	$ 0.3325	$ 0.7150	$ 0.6650
Consumers Energy Company
Operating Revenue	$ 1,395	$ 1,362	$ 3,250	$ 3,099
Operating Expenses
Fuel for electric generation	86	100	188	189
Purchased and interchange power	388	369	766	700
Purchased power – related parties	19	22	39	44
Cost of gas sold	108	105	485	437
Maintenance and other operating expenses	298	285	580	550
Depreciation and amortization	201	195	478	455
General taxes	66	64	151	143
Total operating expenses	1,166	1,140	2,687	2,518
Operating Income	229	222	563	581
Other Income (Expense)
Interest income	2	2	4	6
Allowance for equity funds used during construction	1	2	2	4
Nonoperating retirement benefits, net	20	2	42	5
Other income	0	0	1	14
Other expense	(3)	(2)	(5)	(4)
Total other income	20	4	44	25
Interest Charges
Interest on long-term debt	67	66	134	132
Other interest expense	4	4	9	7
Allowance for borrowed funds used during construction	(1)	(1)	(1)	(2)
Total interest charges	70	69	142	137
Income Before Income Taxes	179	157	465	469
Income Tax Expense	27	53	71	154
Net Income	152	104	394	315
Preferred Stock Dividends	1	1	1	1
Net Income Available to Common Stockholders	$ 151	$ 103	$ 393	$ 314