Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Operating Activities
Net Income	$ 587	$ 569
Net Income	595	577
Adjustments to reconcile Net Income to Net cash from operating activities:
Depreciation and amortization	553	498
Nuclear fuel amortization	25	24
Allowance for equity funds used during construction	(13)	(12)
Deferred income taxes	80	164
Equity earnings of equity method investees	(53)	(51)
Dividends from equity method investees	34	37
Asset (gains) losses and impairments, net	0	3
Changes in assets and liabilities:
Accounts receivable, net	20	49
Inventories	104	32
Prepaid postretirement benefit costs	(9)	0
Accounts payable	(34)	23
Gas inventory equalization	37	35
Accrued pension liability	(197)	(133)
Accrued postretirement liability	(61)	0
Derivative assets and liabilities	(8)	(123)
Regulatory assets and liabilities	230	216
Other current and noncurrent assets and liabilities	138	(148)
Net cash from operating activities	1,433	1,183
Investing Activities
Plant and equipment expenditures — utility	(1,027)	(968)
Plant and equipment expenditures — non-utility	(130)	(68)
Proceeds from sale of nuclear decommissioning trust fund assets	616	705
Investment in nuclear decommissioning trust funds	(613)	(688)
Distributions from equity method investees	5	7
Contributions to equity method investees	(233)	(175)
Other	2	(61)
Net cash used for investing activities	(1,380)	(1,248)
Financing Activities
Issuance of long-term debt, net of issuance costs	520	495
Redemption of long-term debt	(102)	(6)
Short-term borrowings, net	(147)	(79)
Issuance of common stock	6	0
Repurchase of common stock	0	(51)
Dividends on common stock	(309)	(296)
REF contributions from noncontrolling interests	22	21
Distributions to noncontrolling interests	(17)	(20)
Other	(29)	(28)
Net cash from (used for) financing activities	(56)	36
Net Decrease in Cash, Cash Equivalents, and Restricted Cash	(3)	(29)
Cash, Cash Equivalents, and Restricted Cash at Beginning of Period	89	113
Cash, Cash Equivalents, and Restricted Cash at End of Period	86	84
Cash and Cash Equivalents at Beginning of Period	66
Cash and Cash Equivalents at End of Period	63
Supplemental disclosure of non-cash investing and financing activities
Plant and equipment expenditures in accounts payable	216	218
DTE Electric
Operating Activities
Net Income	303	244
Adjustments to reconcile Net Income to Net cash from operating activities:
Depreciation and amortization	414	361
Nuclear fuel amortization	25	24
Allowance for equity funds used during construction	(9)	(10)
Deferred income taxes	91	130
Changes in assets and liabilities:
Accounts receivable, net	(86)	(36)
Inventories	24	23
Accounts payable	(2)	(4)
Accrued pension liability — affiliates	(182)	(122)
Accrued postretirement liability — affiliates	(47)	2
Regulatory assets and liabilities	158	193
Other current and noncurrent assets and liabilities	(4)	(91)
Net cash from operating activities	685	714
Investing Activities
Plant and equipment expenditures	(825)	(737)
Proceeds from sale of nuclear decommissioning trust fund assets	616	705
Investment in nuclear decommissioning trust funds	(613)	(688)
Other	(4)	0
Net cash used for investing activities	(826)	(720)
Financing Activities
Issuance of long-term debt, net of issuance costs	520	0
Short-term borrowings, net — affiliate	(41)	(39)
Short-term borrowings, net — other	(108)	264
Dividends on common stock	(230)	(216)
Other	(7)	(7)
Net cash from (used for) financing activities	134	2
Net Decrease in Cash and Cash Equivalents	(7)	(4)
Cash and Cash Equivalents at Beginning of Period	15	13
Cash and Cash Equivalents at End of Period	8	9
Supplemental disclosure of non-cash investing and financing activities
Plant and equipment expenditures in accounts payable	$ 117	$ 133