Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Operating Activities
Net Income	$ 643	$ 610
Net Income	647	606
Adjustments to reconcile Net Income to net cash from operating activities:
Depreciation and amortization	625	855
Nuclear fuel amortization	40	33
Allowance for equity funds used during construction	(16)	(16)
Deferred income taxes	251	244
Asset (gains) losses and impairments, net	9	(10)
Changes in assets and liabilities:
Accounts receivable, net	277	273
Inventories	(36)	(165)
Accounts payable	(125)	48
Accrued pension obligation	(160)	(154)
Accrued postretirement obligation	(213)	(64)
Derivative assets and liabilities	32	(56)
Regulatory assets and liabilities	35	(211)
Other current and noncurrent assets and liabilities	106	(89)
Net cash from operating activities	1,468	1,298
Investing Activities
Plant and equipment expenditures — utility	(1,239)	(1,295)
Plant and equipment expenditures — non-utility	(162)	(207)
Acquisition	(241)	0
Proceeds from sale of assets	16	36
Restricted cash for debt redemption, principally Securitization	99	62
Proceeds from sale of nuclear decommissioning trust fund assets	627	652
Investment in nuclear decommissioning trust funds	(638)	(665)
Other	(34)	(40)
Net cash used for investing activities	(1,572)	(1,457)
Financing Activities
Issuance of long-term debt, net of issuance costs	956	1,289
Redemption of long-term debt	(260)	(1,222)
Short-term borrowings, net	(213)	522
Issuance of common stock	9	0
Repurchase of common stock	0	(52)
Dividends on common stock	(370)	(348)
Other	1	(22)
Net cash from financing activities	123	167
Net Increase in Cash and Cash Equivalents	19	8
Cash and Cash Equivalents at Beginning of Period	48	52
Cash and Cash Equivalents at End of Period	67	60
Supplemental disclosure of non-cash investing and financing activities
Plant and equipment expenditures in accounts payable	185	192
DTE Electric
Operating Activities
Net Income	452	403
Adjustments to reconcile Net Income to net cash from operating activities:
Depreciation and amortization	461	695
Nuclear fuel amortization	40	33
Allowance for equity funds used during construction	(15)	(16)
Deferred income taxes	269	199
Asset (gains) losses and impairments, net	0	(1)
Changes in assets and liabilities:
Accounts receivable, net	(103)	36
Inventories	(17)	(38)
Accounts payable	3	7
Accrued pension liability — affiliates	(215)	(122)
Accrued postretirement liability — affiliates	(164)	(42)
Regulatory assets and liabilities	(12)	(163)
Other current and noncurrent assets and liabilities	9	(113)
Net cash from operating activities	708	879
Investing Activities
Plant and equipment expenditures	(1,045)	(1,143)
Acquisition	(241)	0
Restricted cash for debt redemption, principally Securitization	96	60
Notes receivable from affiliate	4	164
Proceeds from sale of nuclear decommissioning trust fund assets	627	652
Investment in nuclear decommissioning trust funds	(638)	(665)
Transfer of Rabbi Trust assets to affiliate	137	0
Other	9	(16)
Net cash used for investing activities	(1,051)	(948)
Financing Activities
Issuance of long-term debt, net of issuance costs	495	942
Redemption of long-term debt	(115)	(837)
Capital contribution by parent company	300	0
Short-term borrowings, net — other	(4)	254
Short-term borrowings, net — affiliate	(16)	(2)
Dividends on common stock	(297)	(277)
Other	(5)	(10)
Net cash from financing activities	358	70
Net Increase in Cash and Cash Equivalents	15	1
Cash and Cash Equivalents at Beginning of Period	14	27
Cash and Cash Equivalents at End of Period	29	28
Supplemental disclosure of non-cash investing and financing activities
Plant and equipment expenditures in accounts payable	$ 134	$ 139