Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Operating Activities
Net Income	$ 408	$ 351
Net Income	401	361
Adjustments to reconcile Net Income to Net cash from operating activities:
Depreciation and amortization	296	281
Nuclear fuel amortization	15	15
Allowance for equity funds used during construction	(7)	(7)
Deferred income taxes	49	60
Equity earnings of equity method investees	(23)	(21)
Dividends from equity method investees	44	15
Changes in assets and liabilities:
Accounts receivable, net	143	33
Inventories	207	182
Prepaid postretirement benefit costs	(31)	0
Accounts payable	(288)	(136)
Gas inventory equalization	88	85
Accrued pension liability	(115)	(187)
Accrued postretirement liability	0	(36)
Derivative assets and liabilities	(15)	(7)
Regulatory assets and liabilities	112	148
Other current and noncurrent assets and liabilities	(131)	62
Net cash from operating activities	752	838
Investing Activities
Plant and equipment expenditures — utility	(641)	(466)
Plant and equipment expenditures — non-utility	(27)	(61)
Notes receivable	(48)
Proceeds from sale of nuclear decommissioning trust fund assets	176	336
Investment in nuclear decommissioning trust funds	(178)	(337)
Distributions from equity method investees	1	4
Contributions to equity method investees	(22)	(64)
Notes receivable		3
Other	(9)	(1)
Net cash used for investing activities	(748)	(586)
Financing Activities
Issuance of long-term debt, net of issuance costs	644	0
Short-term borrowings, net	(453)
Short-term borrowings, net		14
Dividends paid on common stock	(172)	(158)
Contributions from noncontrolling interest, principally REF entities	9	12
Distributions to noncontrolling interests	(21)	(4)
Other	(26)	(19)
Net cash from (used for) financing activities	(19)	(155)
Net Increase (Decrease) in Cash, Cash Equivalents, and Restricted Cash	(15)	97
Cash, Cash Equivalents, and Restricted Cash at Beginning of Period	76	89
Cash, Cash Equivalents, and Restricted Cash at End of Period	61	186
Supplemental disclosure of non-cash investing and financing activities
Plant and equipment expenditures in accounts payable	235	179
DTE Electric
Operating Activities
Net Income	147	140
Adjustments to reconcile Net Income to Net cash from operating activities:
Depreciation and amortization	221	212
Nuclear fuel amortization	15	15
Allowance for equity funds used during construction	(6)	(5)
Deferred income taxes	23	48
Changes in assets and liabilities:
Accounts receivable, net	47	39
Inventories	51	50
Accounts payable	(36)	(30)
Accrued pension liability — affiliates	(103)	(178)
Accrued postretirement liability — affiliates	(21)	(24)
Regulatory assets and liabilities	130	97
Other current and noncurrent assets and liabilities	(146)	(41)
Net cash from operating activities	322	323
Investing Activities
Plant and equipment expenditures	(531)	(370)
Notes receivable	(96)	0
Proceeds from sale of nuclear decommissioning trust fund assets	176	336
Investment in nuclear decommissioning trust funds	(178)	(337)
Other	(10)	0
Net cash used for investing activities	(639)	(371)
Financing Activities
Issuance of long-term debt, net of issuance costs	644	0
Short-term borrowings, net — affiliate	(50)	26
Short-term borrowings, net — other	(149)	142
Dividends paid on common stock	(124)	(115)
Other	(12)	(4)
Net cash from (used for) financing activities	309	49
Net Increase (Decrease) in Cash, Cash Equivalents, and Restricted Cash	(8)	1
Cash, Cash Equivalents, and Restricted Cash at Beginning of Period	18	15
Cash, Cash Equivalents, and Restricted Cash at End of Period	10	16
Supplemental disclosure of non-cash investing and financing activities
Plant and equipment expenditures in accounts payable	$ 140	$ 109