Consolidated Statements of Financial Position (Unaudited) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Current Assets
Cash and cash equivalents	$ 98	$ 52
Restricted cash, principally Securitization	57	123
Accounts receivable (less allowance for doubtful accounts of $56 and $55, respectively)
Customer	1,811	1,542
Other	140	127
Inventories
Fuel and gas	208	363
Materials and supplies	272	265
Derivative assets	79	99
Regulatory assets	130	26
Other	178	209
Total Current Assets	2,973	2,806
Investments
Nuclear decommissioning trust funds	1,195	1,191
Other	596	603
Total Investments	1,791	1,794
Property
Property, plant and equipment	25,384	25,123
Less accumulated depreciation, depletion and amortization	(9,399)	(9,323)
Property, plant and equipment, net	15,985	15,800
Other Assets
Goodwill	2,018	2,018
Regulatory assets	2,792	2,837
Securitized regulatory assets	182	231
Intangible Assets	118	122
Notes receivable	92	102
Derivative assets	17	27
Other	193	198
Total Noncurrent Assets	5,412	5,535
Total Assets	26,161	25,935
Current Liabilities
Accounts payable	945	962
Accrued interest	118	90
Dividends payable	116	116
Short-term borrowings	375	131
Current portion long-term debt, including capital leases	1,069	898
Derivative Liabilities, Current	140	195
Gas inventory equalization	142	0
Regulatory liabilities	175	302
Other	489	495
Total Current Liabilities	3,569	3,189
Long-Term Debt (net of current portion)
Mortgage bonds, notes and other	6,438	6,618
Securitization bonds	0	105
Junior subordinated debentures	480	480
Capital lease obligations	5	11
Total Long-Term Debt (net of current portion)	6,923	7,214
Other Liabilities
Deferred income taxes	3,390	3,321
Regulatory liabilities	829	862
Asset retirement obligations	1,854	1,827
Unamortized investment tax credit	44	47
Derivative liabilities	16	43
Accrued pension liability	630	653
Accrued postretirement liability	328	350
Nuclear decommissioning	175	178
Other	266	297
Total Noncurrent Liabilities	7,532	7,578
Equity
Common stock, without par value, 400,000,000 shares authorized, 177,016,824 and 177,087,230 shares issued and outstanding, respectively	3,894	3,907
Retained earnings	4,360	4,150
Accumulated other comprehensive loss	(137)	(136)
Total DTE Energy Company Equity	8,117	7,921
Noncontrolling interests	20	33
Total Equity	8,137	7,954
Total Liabilities and Equity	$ 26,161	$ 25,935