Consolidated Statements of Financial Position (Unaudited) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Current Assets
Cash and cash equivalents	$ 164	$ 66
Restricted cash	22	23
Accounts receivable (less allowance for doubtful accounts)
Customer	1,709	1,758
Other	116	98
Inventories
Fuel and gas	237	399
Materials and supplies	360	380
Derivative assets	84	103
Regulatory assets	44	55
Other	221	199
Total Current Assets	2,957	3,081
Investments
Nuclear decommissioning trust funds	1,481	1,492
Investments in equity method investees	1,141	1,073
Other	230	232
Total Investments	2,852	2,797
Property
Property, plant, and equipment	31,656	31,424
Accumulated depreciation and amortization	(10,786)	(10,703)
Property, plant, and equipment, net	20,870	20,721
Other Assets
Goodwill	2,293	2,293
Regulatory assets	3,715	3,723
Intangible assets	867	867
Notes receivable	70	73
Derivative assets	58	51
Other	159	161
Total Other Assets	7,162	7,168
Total Assets	33,841	33,767
Accounts payable
Accounts payable	920	1,171
Accrued interest	132	111
Dividends payable	160	158
Short-term borrowings	635	621
Current portion long-term debt, including capital leases	106	109
Derivative liabilities	69	99
Gas inventory equalization	85	0
Regulatory liabilities	23	18
Short-term borrowings
Other	411	525
Total Current Liabilities	2,541	2,812
Long-Term Debt (net of current portion)
Mortgage bonds, notes, and other	11,040	11,039
Junior subordinated debentures	1,145	1,145
Capital lease obligations	0	1
Total Long-Term Debt (net of current portion)	12,185	12,185
Other Liabilities
Deferred income taxes	1,936	1,888
Regulatory liabilities	3,001	2,875
Asset retirement obligations	2,361	2,320
Unamortized investment tax credit	122	122
Derivative liabilities	58	47
Accrued pension liability	737	924
Accrued postretirement liability	25	61
Nuclear decommissioning	219	220
Other	293	323
Total Other Liabilities	8,752	8,780
Commitments and Contingencies (Notes 5 and 10)
Equity
Common stock	4,163	3,989
Retained earnings	5,848	5,643
Accumulated other comprehensive income (loss)	(123)	(120)
Total DTE Energy/DTE Electric Company Equity	9,888	9,512
Noncontrolling interests	475	478
Total Equity	10,363	9,990
Total Liabilities and Equity	33,841	33,767
DTE Electric
Current Assets
Cash and cash equivalents	16	15
Accounts receivable (less allowance for doubtful accounts)
Customer	754	791
Affiliates	14	20
Other	39	37
Inventories
Fuel and gas	138	190
Materials and supplies	277	275
Regulatory assets	40	50
Prepaid property tax	91	48
Other	18	20
Total Current Assets	1,387	1,446
Investments
Nuclear decommissioning trust funds	1,481	1,492
Other	36	36
Total Investments	1,517	1,528
Property
Property, plant, and equipment	23,098	22,972
Accumulated depreciation and amortization	(8,023)	(7,984)
Property, plant, and equipment, net	15,075	14,988
Other Assets
Regulatory assets	3,009	3,005
Intangible assets	31	25
Prepaid postretirement costs — affiliates	113	113
Other	123	123
Total Other Assets	3,276	3,266
Total Assets	21,255	21,228
Accounts payable
Affiliates	61	52
Other	295	416
Accrued interest	70	72
Current portion long-term debt, including capital leases	2	5
Regulatory liabilities	21	17
Short-term borrowings
Affiliates	142	116
Other	380	238
Other	133	145
Total Current Liabilities	1,104	1,061
Long-Term Debt (net of current portion)
Mortgage bonds, notes, and other	6,018	6,017
Capital lease obligations	0	1
Total Long-Term Debt (net of current portion)	6,018	6,018
Other Liabilities
Deferred income taxes	2,127	2,088
Regulatory liabilities	2,218	2,137
Asset retirement obligations	2,165	2,125
Unamortized investment tax credit	120	120
Nuclear decommissioning	219	220
Accrued pension liability — affiliates	633	811
Accrued postretirement liability — affiliates	287	311
Other	74	72
Total Other Liabilities	7,843	7,884
Commitments and Contingencies (Notes 5 and 10)
Equity
Common stock	4,306	4,306
Retained earnings	1,984	1,956
Accumulated other comprehensive income (loss)	0	3
Total DTE Energy/DTE Electric Company Equity	6,290	6,265
Total Liabilities and Equity	$ 21,255	$ 21,228