Consolidated Statements of Financial Position - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Current Assets
Cash and cash equivalents	$ 92	$ 37
Restricted cash	21	23
Accounts receivable (less allowance for doubtful accounts)
Customer	1,522	1,276
Other	71	72
Inventories
Fuel and gas	416	480
Materials and supplies	356	323
Derivative assets	47	129
Regulatory assets	42	32
Other	195	203
Total Current Assets	2,762	2,575
Investments
Nuclear decommissioning trust funds	1,320	1,236
Investments in equity method investees	752	514
Other	201	186
Total Investments	2,273	1,936
Property
Property, plant, and equipment	30,029	28,121
Accumulated depreciation and amortization	(10,299)	(10,087)
Property, plant and equipment, net	19,730	18,034
Other Assets
Goodwill	2,286	2,018
Regulatory assets	3,871	3,692
Intangible assets	842	89
Notes receivable	73	85
Derivative assets	34	54
Other	170	179
Total Other Assets	7,276	6,117
Total Assets	32,041	28,662
Current Liabilities
Accounts payable	1,079	809
Accrued interest	96	89
Dividends payable	148	131
Short-term borrowings	499	499
Current portion long-term debt, including capital leases	14	473
Derivative liabilities	69	57
Regulatory liabilities	34	41
Short-term borrowings
Other	498	429
Total Current Liabilities	2,437	2,528
Long-Term Debt (net of current portion)
Mortgage bonds, notes, and other	10,506	8,280
Junior subordinated debentures	756	465
Capital lease obligations	7	15
Total Long-Term Debt (net of current portion)	11,269	8,760
Other Liabilities
Deferred income taxes	4,162	3,923
Regulatory liabilities	555	569
Asset retirement obligations	2,197	2,194
Unamortized investment tax credit	93	62
Derivative liabilities	98	86
Accrued pension liability	1,152	1,133
Accrued postretirement liability	36	228
Nuclear decommissioning	194	177
Other	349	207
Total Other Liabilities	8,836	8,579
Commitments and Contingencies
Equity
Common stock	4,030	4,123
Retained earnings	5,114	4,794
Accumulated other comprehensive income	(133)	(145)
Total DTE Energy Company Equity	9,011	8,772
Noncontrolling interests	488	23
Total Equity	9,499	8,795
Total Liabilities and Equity	32,041	28,662
DTE Electric
Current Assets
Cash and cash equivalents	13	15
Accounts receivable (less allowance for doubtful accounts)
Customer	728	657
Affiliates	12	14
Other	29	40
Inventories
Fuel and gas	225	271
Materials and supplies	271	251
Regulatory assets	36	17
Other	63	66
Total Current Assets	1,377	1,331
Investments
Nuclear decommissioning trust funds	1,320	1,236
Other	36	35
Total Investments	1,356	1,271
Property
Property, plant, and equipment	22,094	21,391
Accumulated depreciation and amortization	(7,721)	(7,646)
Property, plant and equipment, net	14,373	13,745
Other Assets
Regulatory assets	3,113	2,969
Intangible assets	31	34
Prepaid postretirement costs — affiliates	114	24
Other	125	144
Total Other Assets	3,383	3,171
Total Assets	20,489	19,518
Current Liabilities
Affiliates	58	40
Other	452	329
Accrued interest	65	62
Current portion long-term debt, including capital leases	6	157
Regulatory liabilities	27	19
Short-term borrowings
Affiliates	117	75
Other	62	272
Other	146	138
Total Current Liabilities	933	1,092
Long-Term Debt (net of current portion)
Mortgage bonds, notes, and other	5,878	5,437
Capital lease obligations	7	15
Total Long-Term Debt (net of current portion)	5,885	5,452
Other Liabilities
Deferred income taxes	3,793	3,498
Regulatory liabilities	229	199
Asset retirement obligations	2,012	2,020
Unamortized investment tax credit	90	58
Nuclear decommissioning	194	177
Accrued pension liability — affiliates	1,008	976
Accrued postretirement liability — affiliates	269	307
Other	81	66
Total Other Liabilities	7,676	7,301
Commitments and Contingencies
Equity
Common stock	4,206	4,086
Retained earnings	1,787	1,585
Accumulated other comprehensive income	2	2
Total DTE Energy Company Equity	5,995	5,673
Total Liabilities and Equity	$ 20,489	$ 19,518