Consolidated Statements of Financial Position (Unaudited) (USD $) In Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2011	Dec. 31, 2010
Current Assets
Cash and cash equivalents	$ 61	$ 65
Restricted cash	118	120
Accounts receivable (less allowance for doubtful accounts of $174 and $196, respectively)
Customer	1,297	1,393
Other	151	402
Inventories
Fuel and gas	473	460
Materials and supplies	212	202
Deferred income taxes	127	139
Derivative assets	109	131
Other	223	255
Total Current Assets	2,771	3,167
Investments
Nuclear decommissioning trust funds	975	939
Other	526	518
Total Investments	1,501	1,457
Property
Property, plant and equipment	22,123	21,574
Less accumulated depreciation, depletion and amortization	(8,839)	(8,582)
Property, plant and equipment, net	13,284	12,992
Other Assets
Goodwill	2,020	2,020
Regulatory assets	3,905	4,058
Securitized regulatory assets	656	729
Intangible assets	71	67
Notes receivable	127	123
Derivative assets	49	77
Other	195	206
Total Noncurrent Assets	7,023	7,280
Total Assets	24,579	24,896
Current Liabilities
Accounts payable	733	729
Accrued interest	101	111
Dividends payable	199	95
Short-term borrowings	151	150
Current portion long-term debt, including capital leases	326	925
Derivative liabilities	110	142
Gas inventory equalization	109	0
Other	517	597
Total Current Liabilities	2,246	2,749
Long-Term Debt (net of current portion)
Mortgage bonds, notes and other	6,622	6,114
Securitization bonds	559	643
Trust preferred-linked securities	289	289
Capital lease obligations	37	43
Total Long-Term Debt (net of current portion)	7,507	7,089
Other Liabilities
Deferred income taxes	2,964	2,632
Regulatory liabilities	978	1,328
Asset retirement obligations	1,538	1,498
Unamortized investment tax credit	70	75
Derivative liabilities	74	110
Liabilities from transportation and storage contracts	76	83
Accrued pension liability	680	866
Accrued postretirement liability	1,220	1,275
Nuclear decommissioning	152	149
Other	250	275
Total Noncurrent Liabilities	8,002	8,291
Commitments and Contingencies (Notes 6 and 10)
Equity
Common stock, without par value, 400,000,000 shares authorized, 169,328,889 and 169,428,406 shares issued and outstanding, respectively	3,415	3,440
Retained earnings	3,516	3,431
Accumulated other comprehensive loss	(146)	(149)
Total DTE Energy Company Equity	6,785	6,722
Noncontrolling interests	39	45
Total Equity	6,824	6,767
Total Liabilities and Equity	$ 24,579	$ 24,896