Consolidated Statements of Financial Position (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Current Assets
Cash and cash equivalents	$ 52	$ 65
Restricted cash, principally Securitization	123	122
Accounts receivable (less allowance for doubtful accounts of $55 and $62, respectively)
Customer	1,542	1,336
Other	127	126
Inventories
Fuel and gas	363	527
Materials and supplies	265	234
Derivative assets	99	108
Regulatory assets	26	182
Other	209	215
Total Current Assets	2,806	2,915
Investments
Nuclear decommissioning trust funds	1,191	1,037
Other	603	554
Total Investments	1,794	1,591
Property
Property, plant and equipment	25,123	23,631
Less accumulated depreciation, depletion and amortization	(9,323)	(8,947)
Property, plant and equipment, net	15,800	14,684
Other Assets
Goodwill	2,018	2,018
Regulatory assets	2,837	4,235
Securitized regulatory assets	231	413
Intangible assets	122	135
Notes receivable	102	112
Derivative assets	27	39
Other	198	197
Total Noncurrent Assets	5,535	7,149
Total Assets	25,935	26,339
Current Liabilities
Accounts payable	962	848
Accrued interest	90	93
Dividends payable	116	107
Short-term borrowings	131	240
Current portion long-term debt, including capital leases	898	817
Derivative liabilities	195	125
Regulatory liabilities	302	89
Other	495	449
Total Current Liabilities	3,189	2,768
Long-Term Debt (net of current portion)
Mortgage bonds, notes and other	6,618	6,220
Securitization bonds	105	302
Junior subordinated debentures	480	480
Capital lease obligations	11	12
Total Long-Term Debt (net of current portion)	7,214	7,014
Other Liabilities
Deferred income taxes	3,321	3,191
Regulatory liabilities	862	1,031
Asset retirement obligations	1,827	1,719
Unamortized investment tax credit	47	56
Derivative liabilities	43	26
Accrued pension liability	653	1,498
Accrued postretirement liability	350	1,160
Nuclear decommissioning	178	159
Other	297	306
Total Noncurrent Liabilities	7,578	9,146
Equity
Common stock, without par value, 400,000,000 shares authorized, 177,087,230 and 172,351,680 shares issued and outstanding, respectively	3,907	3,587
Retained earnings	4,150	3,944
Accumulated other comprehensive loss	(136)	(158)
Total DTE Energy Company Equity	7,921	7,373
Noncontrolling interests	33	38
Total Equity	7,954	7,411
Total Liabilities and Equity	$ 25,935	$ 26,339