Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Operating Activities
Net Income	$ 385	$ 379
Net Income (Loss)	399	382
Adjustments to reconcile Net Income to net cash from operating activities:
Depreciation and amortization	472	429
Nuclear fuel amortization	29	28
Allowance for equity funds used during construction	(10)	(10)
Deferred income taxes	134	148
Equity earnings of equity method investees	(35)	(32)
Dividends from equity method investees	33	30
Asset (gains) losses and impairments, net	0	(8)
Changes in assets and liabilities:
Accounts receivable, net	81	234
Inventories	86	73
Accounts payable	(10)	(119)
Gas inventory equalization	46	56
Accrued pension liability	3	(96)
Accrued postretirement liability	(53)	(192)
Derivative assets and liabilities	93	48
Regulatory assets and liabilities	71	89
Other current and noncurrent assets and liabilities	(53)	107
Net cash from operating activities	1,272	1,180
Investing Activities
Plant and equipment expenditures — utility	(797)	(781)
Plant and equipment expenditures — non-utility	(64)	(114)
Acquisition	0	(241)
Proceeds from sale of assets	0	16
Restricted cash for debt redemption, principally Securitization, net	1	99
Proceeds from sale of nuclear decommissioning trust fund assets	741	440
Investment in nuclear decommissioning trust funds	(744)	(446)
Distributions from equity method investees	7	9
Contributions to equity method investees	(121)	(32)
Other	39	14
Net cash used for investing activities	(938)	(1,036)
Financing Activities
Issuance of long-term debt, net of issuance costs	588	793
Redemption of long-term debt	(313)	(118)
Short-term borrowings, net	(324)	(398)
Issuance of common stock	0	9
Repurchase of common stock	(33)	0
Dividends on common stock	(262)	(246)
Other	5	(2)
Net cash from (used for) financing activities	(339)	38
Net Increase (Decrease) in Cash and Cash Equivalents	(5)	182
Cash and Cash Equivalents at Beginning of Period	37	48
Cash and Cash Equivalents at End of Period	32	230
Supplemental disclosure of non-cash investing and financing activities
Plant and equipment expenditures in accounts payable	154	206
DTE Electric
Operating Activities
Net Income (Loss)	262	236
Adjustments to reconcile Net Income to net cash from operating activities:
Depreciation and amortization	363	320
Nuclear fuel amortization	29	28
Allowance for equity funds used during construction	(9)	(10)
Deferred income taxes	146	127
Changes in assets and liabilities:
Accounts receivable, net	(32)	(43)
Inventories	25	(15)
Accounts payable	32	(28)
Accrued pension liability — affiliates	5	(183)
Accrued postretirement liability — affiliates	(34)	(150)
Regulatory assets and liabilities	82	38
Other current and noncurrent assets and liabilities	(44)	48
Net cash from operating activities	825	368
Investing Activities
Plant and equipment expenditures	(640)	(665)
Acquisition	0	(241)
Proceeds from sale of assets	6	0
Restricted cash for debt redemption, principally Securitization, net	0	96
Notes receivable from affiliate	(62)	8
Proceeds from sale of nuclear decommissioning trust fund assets	741	440
Investment in nuclear decommissioning trust funds	(744)	(446)
Transfer of Rabbi Trust assets to affiliate	0	137
Other	36	14
Net cash used for investing activities	(663)	(657)
Financing Activities
Issuance of long-term debt, net of issuance costs	297	495
Redemption of long-term debt	(10)	(115)
Capital contribution by parent company	0	300
Short-term borrowings, net — affiliate	33	(30)
Short-term borrowings, net — other	(272)	(50)
Dividends on common stock	(210)	(199)
Other	(2)	(3)
Net cash from (used for) financing activities	(164)	398
Net Increase (Decrease) in Cash and Cash Equivalents	(2)	109
Cash and Cash Equivalents at Beginning of Period	15	14
Cash and Cash Equivalents at End of Period	13	123
Supplemental disclosure of non-cash investing and financing activities
Plant and equipment expenditures in accounts payable	$ 112	$ 154