Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Operating Activities
Net Income	$ 710	$ 643
Net Income	737	647
Adjustments to reconcile Net Income to net cash from operating activities:
Depreciation and amortization	702	625
Nuclear fuel amortization	44	40
Allowance for equity funds used during construction	(15)	(16)
Deferred income taxes	244	251
Equity earnings of equity method investees	(49)	(49)
Dividends from equity method investees	52	49
Asset (gains) losses and impairments, net	0	9
Changes in assets and liabilities:
Accounts receivable, net	6	277
Inventories	10	(36)
Accounts payable	39	(125)
Accrued pension liability	(1)	(160)
Accrued postretirement liability	(80)	(213)
Derivative assets and liabilities	122	32
Regulatory assets and liabilities	93	35
Other current and noncurrent assets and liabilities	(110)	111
Net cash from operating activities	1,767	1,473
Investing Activities
Plant and equipment expenditures — utility	(1,267)	(1,239)
Plant and equipment expenditures — non-utility	(75)	(162)
Acquisition	0	(241)
Proceeds from sale of assets	0	16
Restricted cash for debt redemption, principally Securitization, net	2	99
Proceeds from sale of nuclear decommissioning trust fund assets	1,135	627
Investment in nuclear decommissioning trust funds	(1,140)	(638)
Distributions from equity method investees	8	13
Contributions to equity method investees	(199)	(58)
Other	33	11
Net cash used for investing activities	(1,503)	(1,572)
Financing Activities
Issuance of long-term debt, net of issuance costs	646	956
Redemption of long-term debt	(322)	(260)
Repurchase of long-term debt	59	0
Short-term borrowings, net	(89)	(213)
Issuance of common stock	0	9
Repurchase of common stock	(33)	0
Dividends on common stock	(393)	(370)
Other	15	(4)
Net cash from (used for) financing activities	(235)	118
Net Increase in Cash and Cash Equivalents	29	19
Cash and Cash Equivalents at Beginning of Period	37	48
Cash and Cash Equivalents at End of Period	66	67
Supplemental disclosure of non-cash investing and financing activities
Plant and equipment expenditures in accounts payable	168	185
DTE Electric
Operating Activities
Net Income	547	452
Adjustments to reconcile Net Income to net cash from operating activities:
Depreciation and amortization	539	461
Nuclear fuel amortization	44	40
Allowance for equity funds used during construction	(13)	(15)
Deferred income taxes	298	269
Changes in assets and liabilities:
Accounts receivable, net	(135)	(103)
Inventories	18	(17)
Accounts payable	59	3
Accrued pension liability — affiliates	9	(215)
Accrued postretirement liability — affiliates	(52)	(164)
Regulatory assets and liabilities	100	(12)
Other current and noncurrent assets and liabilities	(119)	9
Net cash from operating activities	1,295	708
Investing Activities
Plant and equipment expenditures	(999)	(1,045)
Acquisition	0	(241)
Proceeds from sale of assets	6	0
Restricted cash for debt redemption, principally Securitization, net	0	96
Notes receivable — affiliates	(64)	4
Proceeds from sale of nuclear decommissioning trust fund assets	1,135	627
Investment in nuclear decommissioning trust funds	(1,140)	(638)
Transfer of Rabbi Trust assets to affiliate	0	137
Other	34	9
Net cash used for investing activities	(1,028)	(1,051)
Financing Activities
Issuance of long-term debt, net of issuance costs	355	495
Redemption of long-term debt	(10)	(115)
Repurchase of long-term debt	59	0
Capital contribution by parent company	0	300
Short-term borrowings, net — affiliate	37	(16)
Short-term borrowings, net — other	(272)	(4)
Dividends on common stock	(315)	(297)
Other	(2)	(5)
Net cash from (used for) financing activities	(266)	358
Net Increase in Cash and Cash Equivalents	1	15
Cash and Cash Equivalents at Beginning of Period	15	14
Cash and Cash Equivalents at End of Period	16	29
Supplemental disclosure of non-cash investing and financing activities
Plant and equipment expenditures in accounts payable	$ 118	$ 134