Consolidated Statements of Financial Position (Unaudited) - USD ($) $ in Millions	Mar. 31, 2017	Dec. 31, 2016
Current Assets
Cash and cash equivalents	$ 82	$ 92
Restricted cash	20	21
Accounts receivable (less allowance for doubtful accounts)
Customer	1,408	1,522
Other	101	71
Inventories
Fuel and gas	286	416
Materials and supplies	354	356
Derivative assets	68	47
Regulatory assets	26	42
Other	222	195
Total Current Assets	2,567	2,762
Investments
Nuclear decommissioning trust funds	1,364	1,320
Investments in equity method investees	868	752
Other	210	201
Total Investments	2,442	2,273
Property
Property, plant, and equipment	30,287	30,029
Accumulated depreciation and amortization	(10,421)	(10,299)
Property, plant, and equipment, net	19,866	19,730
Other Assets
Goodwill	2,292	2,286
Regulatory assets	3,833	3,871
Intangible assets	837	842
Notes receivable	71	73
Derivative assets	73	34
Other	168	170
Total Other Assets	7,274	7,276
Total Assets	32,149	32,041
Accounts payable
Accounts payable	910	1,079
Accrued interest	131	96
Dividends payable	148	148
Short-term borrowings	59	499
Current portion long-term debt, including capital leases	13	14
Derivative liabilities	33	69
Gas inventory equalization	86	0
Regulatory liabilities	37	34
Short-term borrowings
Other	417	498
Total Current Liabilities	1,834	2,437
Long-Term Debt (net of current portion)
Mortgage bonds, notes, and other	10,999	10,506
Junior subordinated debentures	756	756
Capital lease obligations	3	7
Total Long-Term Debt (net of current portion)	11,758	11,269
Other Liabilities
Deferred income taxes	4,270	4,162
Regulatory liabilities	563	555
Asset retirement obligations	2,229	2,197
Unamortized investment tax credit	91	93
Derivative liabilities	93	98
Accrued pension liability	1,022	1,152
Accrued postretirement liability	63	36
Nuclear decommissioning	203	194
Other	335	349
Total Other Liabilities	8,869	8,836
Commitments and Contingencies
Equity
Common stock	3,958	4,030
Retained earnings	5,365	5,114
Accumulated other comprehensive income (loss)	(129)	(133)
Total DTE Energy Company Equity	9,194	9,011
Noncontrolling interests	494	488
Total Equity	9,688	9,499
Total Liabilities and Equity	32,149	32,041
DTE Electric
Current Assets
Cash and cash equivalents	11	13
Accounts receivable (less allowance for doubtful accounts)
Customer	654	728
Affiliates	19	12
Other	38	29
Inventories
Fuel and gas	178	225
Materials and supplies	276	271
Regulatory assets	11	36
Prepaid property tax	89	45
Other	16	18
Total Current Assets	1,292	1,377
Investments
Nuclear decommissioning trust funds	1,364	1,320
Other	34	36
Total Investments	1,398	1,356
Property
Property, plant, and equipment	22,276	22,094
Accumulated depreciation and amortization	(7,812)	(7,721)
Property, plant, and equipment, net	14,464	14,373
Other Assets
Regulatory assets	3,090	3,113
Intangible assets	32	31
Prepaid postretirement costs — affiliates	114	114
Other	125	125
Total Other Assets	3,361	3,383
Total Assets	20,515	20,489
Accounts payable
Affiliates	55	58
Other	384	452
Accrued interest	72	65
Current portion long-term debt, including capital leases	5	6
Regulatory liabilities	33	27
Short-term borrowings
Affiliates	205	117
Other	59	62
Other	149	146
Total Current Liabilities	962	933
Long-Term Debt (net of current portion)
Mortgage bonds, notes, and other	5,879	5,878
Capital lease obligations	3	7
Total Long-Term Debt (net of current portion)	5,882	5,885
Other Liabilities
Deferred income taxes	3,850	3,793
Regulatory liabilities	241	229
Asset retirement obligations	2,041	2,012
Unamortized investment tax credit	88	90
Nuclear decommissioning	203	194
Accrued pension liability — affiliates	885	1,008
Accrued postretirement liability — affiliates	290	269
Other	79	81
Total Other Liabilities	7,677	7,676
Commitments and Contingencies
Equity
Common stock	4,206	4,206
Retained earnings	1,786	1,787
Accumulated other comprehensive income (loss)	2	2
Total DTE Energy Company Equity	5,994	5,995
Total Liabilities and Equity	$ 20,515	$ 20,489