Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Operating Activities
Net Income	$ 379	$ 453
Net Income	382	450
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization	429	562
Nuclear fuel amortization	28	19
Allowance for equity funds used during construction	(10)	(11)
Deferred income taxes	148	196
Asset (gains) losses and impairments, net	8	(7)
Changes in assets and liabilities:
Accounts receivable, net	234	145
Inventories	73	9
Accounts payable	(119)	104
Gas inventory equalization	56	38
Accrued pension obligation	(96)	(89)
Accrued postretirement obligation	(192)	(43)
Derivative assets and liabilities	48	(59)
Regulatory assets and liabilities	89	(224)
Other current and noncurrent assets and liabilities	105	(17)
Net cash from operating activities	1,180	1,076
Investing Activities
Plant and equipment expenditures — utility	(781)	(924)
Plant and equipment expenditures — non-utility	(114)	(156)
Acquisition	(241)	0
Proceeds from sale of assets	16	31
Restricted cash for debt redemption, principally Securitization	99	13
Proceeds from sale of nuclear decommissioning trust fund assets	440	475
Investment in nuclear decommissioning trust funds	(446)	(483)
Other	(9)	(23)
Net cash used for investing activities	(1,036)	(1,067)
Financing Activities
Issuance of long-term debt, net of issuance costs	793	595
Redemption of long-term debt	(118)	(664)
Short-term borrowings, net	(398)	380
Issuance of common stock	9	0
Repurchase of common stock	0	(52)
Dividends on common stock	(246)	(232)
Other	(2)	(13)
Net cash from financing activities	38	14
Net Increase in Cash and Cash Equivalents	182	23
Cash and Cash Equivalents at Beginning of Period	48	52
Cash and Cash Equivalents at End of Period	230	75
Supplemental disclosure of non-cash investing and financing activities
Plant and equipment expenditures in accounts payable	206	209
DTE Electric
Operating Activities
Net Income	236	267
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization	320	457
Nuclear fuel amortization	28	19
Allowance for equity funds used during construction	(10)	(11)
Deferred income taxes	127	145
Changes in assets and liabilities:
Accounts receivable, net	(43)	(14)
Inventories	(15)	(28)
Accounts payable	(28)	10
Accrued pension liability — affiliates	(183)	(83)
Accrued postretirement liability — affiliates	(150)	(28)
Regulatory assets and liabilities	38	(152)
Other current and noncurrent assets and liabilities	48	(87)
Net cash from operating activities	368	495
Investing Activities
Plant and equipment expenditures	(665)	(832)
Acquisition	(241)	0
Restricted cash for debt redemption, principally Securitization	96	12
Notes receivable from affiliate	8	200
Proceeds from sale of nuclear decommissioning trust fund assets	440	475
Investment in nuclear decommissioning trust funds	(446)	(483)
Transfer of Rabbi Trust assets to affiliate	137	0
Other	14	(15)
Net cash used for investing activities	(657)	(643)
Financing Activities
Issuance of long-term debt, net of issuance costs	495	248
Redemption of long-term debt	(115)	(281)
Capital contribution by parent company	300	0
Short-term borrowings, net — other	(50)	275
Short-term borrowings, net — affiliate	(30)	97
Dividends on common stock	(199)	(185)
Other	(3)	(4)
Net cash from financing activities	398	150
Net Increase in Cash and Cash Equivalents	109	2
Cash and Cash Equivalents at Beginning of Period	14	27
Cash and Cash Equivalents at End of Period	123	29
Supplemental disclosure of non-cash investing and financing activities
Plant and equipment expenditures in accounts payable	$ 154	$ 152