Consolidated Statements of Financial Position (Unaudited) (USD $) In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Current Assets
Cash and cash equivalents	$ 99	$ 48
Restricted cash	24	120
Accounts receivable (less allowance for doubtful accounts)
Customer	1,534	1,504
Other	73	94
Inventories
Fuel and gas	333	512
Materials and supplies	300	292
Notes receivable
Derivative assets	74	128
Regulatory assets	39	76
Other	312	313
Total Current Assets	2,788	3,087
Investments
Nuclear decommissioning trust funds	1,262	1,241
Other	649	628
Total Investments	1,911	1,869
Property
Property, plant and equipment	27,124	26,538
Less accumulated depreciation and amortization	(9,889)	(9,718)
Property, plant and equipment, net	17,235	16,820
Other Assets
Goodwill	2,018	2,018
Regulatory assets	3,643	3,651
Securitized regulatory assets	0	34
Intangible assets	100	102
Notes receivable	88	90
Derivative assets	40	44
Other	245	259
Total Noncurrent Assets	6,134	6,198
Total Assets	28,068	27,974
Current Liabilities
Accounts payable	825	973
Accrued interest	116	86
Dividends payable	124	122
Short-term borrowings	0	398
Current portion long-term debt, including capital leases	166	274
Derivative liabilities	52	77
Gas inventory equalization	130	0
Regulatory liabilities	79	153
Other	347	494
Total Current Liabilities	1,839	2,577
Long-Term Debt (net of current portion)
Mortgage bonds, notes and other	8,348	7,860
Junior subordinated debentures	480	480
Capital lease obligations	10	3
Total Long-Term Debt (net of current portion)	8,838	8,343
Other Liabilities
Deferred income taxes	3,858	3,776
Regulatory liabilities	665	667
Asset retirement obligations	2,022	1,962
Unamortized investment tax credit	52	41
Derivative liabilities	23	8
Accrued pension liability	1,282	1,280
Accrued postretirement liability	380	515
Nuclear decommissioning	184	182
Other	247	281
Total Noncurrent Liabilities	8,713	8,712
Commitments and Contingencies (Notes 6 and 12)
Equity
Common stock, without par value, 400,000,000 shares authorized, and 179,330,405 and 176,991,231 shares issued and outstanding, respectively	4,093	3,904
Retained earnings	4,727	4,578
Accumulated other comprehensive loss	(155)	(155)
Total Equity Attributable to Parent	8,665	8,327
Noncontrolling interests	13	15
Total Equity	8,678	8,342
Total Liabilities and Equity	28,068	27,974
DTE Electric
Current Assets
Cash and cash equivalents	54	14
Restricted cash	0	96
Accounts receivable (less allowance for doubtful accounts)
Customer	664	688
Affiliates	53	31
Other	20	15
Inventories
Fuel and gas	260	269
Materials and supplies	240	231
Notes receivable
Affiliates	0	8
Other	2	8
Regulatory assets	38	46
Prepaid property tax	82	44
Other	26	31
Total Current Assets	1,439	1,481
Investments
Nuclear decommissioning trust funds	1,262	1,241
Other	36	172
Total Investments	1,298	1,413
Property
Property, plant and equipment	20,395	19,805
Less accumulated depreciation and amortization	(7,408)	(7,216)
Property, plant and equipment, net	12,987	12,589
Other Assets
Regulatory assets	2,914	2,913
Securitized regulatory assets	0	34
Intangible assets	37	37
Other	174	182
Total Noncurrent Assets	3,125	3,166
Total Assets	18,849	18,649
Current Liabilities
Accounts payable, affiliates	55	60
Accounts payable, other	356	366
Accrued interest	66	58
Accrued vacation	48	48
Current portion long-term debt, including capital leases	11	118
Regulatory liabilities	73	150
Deferred income taxes	8	0
Short-term borrowings, affiliates	35	84
Short-term borrowings, other	0	50
Other	74	103
Total Current Liabilities	726	1,037
Long-Term Debt (net of current portion)
Mortgage bonds, notes and other	5,634	5,144
Capital lease obligations	10	0
Total Long-Term Debt (net of current portion)	5,644	5,144
Other Liabilities
Deferred income taxes	3,275	3,188
Regulatory liabilities	245	245
Asset retirement obligations	1,854	1,796
Unamortized investment tax credit	47	36
Nuclear decommissioning	184	182
Accrued pension liability — affiliates	1,112	1,200
Accrued postretirement liability — affiliates	392	520
Other	108	105
Total Noncurrent Liabilities	7,217	7,272
Commitments and Contingencies (Notes 6 and 12)
Equity
Common stock, without par value, 400,000,000 shares authorized, and 179,330,405 and 176,991,231 shares issued and outstanding, respectively	3,786	3,786
Retained earnings	1,474	1,436
Accumulated other comprehensive loss	2	(26)
Total Equity Attributable to Parent	5,262	5,196
Total Liabilities and Equity	$ 18,849	$ 18,649