Consolidated Statements of Financial Position (Unaudited) - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Current Assets
Cash and cash equivalents	$ 35	$ 37
Restricted cash	23	23
Accounts receivable (less allowance for doubtful accounts)
Customer	1,185	1,276
Other	80	72
Inventories
Fuel and gas	351	480
Materials and supplies	309	323
Notes receivable
Derivative assets	109	129
Regulatory assets	36	32
Other	234	203
Total Current Assets	2,362	2,575
Investments
Nuclear decommissioning trust funds	1,246	1,236
Investments in equity method investees	542	514
Other	191	186
Total Investments	1,979	1,936
Property
Property, plant, and equipment	28,273	28,121
Less accumulated depreciation and amortization	(10,146)	(10,087)
Property, plant and equipment, net	18,127	18,034
Other Assets
Goodwill	2,018	2,018
Regulatory assets	3,699	3,692
Intangible assets	90	89
Notes receivable	79	85
Derivative assets	53	54
Other	157	179
Total Noncurrent Assets	6,096	6,117
Total Assets	28,564	28,662
Accounts payable
Accounts payable	649	809
Accrued interest	119	89
Dividends payable	131	131
Short-term borrowings	365	499
Current portion long-term debt, including capital leases	462	473
Derivative liabilities	67	57
Gas inventory equalization	87	0
Regulatory liabilities	30	41
Short-term borrowings
Other	299	429
Total Current Liabilities	2,209	2,528
Long-Term Debt (net of current portion)
Mortgage bonds, notes, and other	8,266	8,265
Junior subordinated debentures	480	480
Capital lease obligations	12	15
Total Long-Term Debt (net of current portion)	8,758	8,760
Other Liabilities
Deferred income taxes	4,006	3,923
Regulatory liabilities	585	569
Asset retirement obligations	2,227	2,194
Unamortized investment tax credit	60	62
Derivative liabilities	96	86
Accrued pension liability	1,130	1,133
Accrued postretirement liability	199	228
Nuclear decommissioning	179	177
Other	205	207
Total Noncurrent Liabilities	$ 8,687	$ 8,579
Commitments and Contingencies
Equity
Common stock	$ 4,118	$ 4,123
Retained earnings	4,909	4,794
Accumulated other comprehensive income (loss)	(140)	(145)
Total DTE Energy Company Equity	8,887	8,772
Noncontrolling interests	23	23
Total Equity	8,910	8,795
Total Liabilities and Equity	28,564	28,662
DTE Electric
Current Assets
Cash and cash equivalents	17	15
Accounts receivable (less allowance for doubtful accounts)
Customer	618	657
Affiliates	8	14
Other	43	40
Inventories
Fuel and gas	232	271
Materials and supplies	259	251
Notes receivable
Other	5	0
Regulatory assets	25	17
Prepaid property tax	84	44
Other	31	22
Total Current Assets	1,322	1,331
Investments
Nuclear decommissioning trust funds	1,246	1,236
Other	34	35
Total Investments	1,280	1,271
Property
Property, plant, and equipment	21,476	21,391
Less accumulated depreciation and amortization	(7,681)	(7,646)
Property, plant and equipment, net	13,795	13,745
Other Assets
Regulatory assets	2,981	2,969
Intangible assets	38	34
Prepaid postretirement costs — affiliates	24	24
Other	119	144
Total Noncurrent Assets	3,162	3,171
Total Assets	19,559	19,518
Accounts payable
Affiliates	56	40
Other	288	329
Accrued interest	66	62
Current portion long-term debt, including capital leases	148	157
Regulatory liabilities	27	19
Short-term borrowings
Affiliates	97	75
Other	211	272
Other	122	138
Total Current Liabilities	1,015	1,092
Long-Term Debt (net of current portion)
Mortgage bonds, notes, and other	5,438	5,437
Capital lease obligations	12	15
Total Long-Term Debt (net of current portion)	5,450	5,452
Other Liabilities
Deferred income taxes	3,566	3,498
Regulatory liabilities	213	199
Asset retirement obligations	2,049	2,020
Unamortized investment tax credit	56	58
Nuclear decommissioning	179	177
Accrued pension liability — affiliates	979	976
Accrued postretirement liability — affiliates	288	307
Other	69	66
Total Noncurrent Liabilities	$ 7,399	$ 7,301
Commitments and Contingencies
Equity
Common stock	$ 4,086	$ 4,086
Retained earnings	1,607	1,585
Accumulated other comprehensive income (loss)	2	2
Total DTE Energy Company Equity	5,695	5,673
Total Liabilities and Equity	$ 19,559	$ 19,518