Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Operating Activities
Net Income	$ 342	$ 408
Net Income	340	401
Adjustments to reconcile Net Income to Net cash from operating activities:
Depreciation and amortization	353	296
Nuclear fuel amortization	13	15
Allowance for equity funds used during construction	(6)	(7)
Deferred income taxes	213	49
Equity earnings of equity method investees	(29)	(23)
Dividends from equity method investees	39	44
Asset (gains) losses and impairments, net	(6)	0
Changes in assets and liabilities:
Accounts receivable, net	151	143
Inventories	55	207
Prepaid postretirement benefit costs	(14)	(31)
Accounts payable	(24)	(288)
Gas inventory equalization	62	88
Accrued pension liability	(13)	(115)
Derivative assets and liabilities	(30)	(15)
Regulatory assets and liabilities	(149)	112
Other current and noncurrent assets and liabilities	104	(131)
Net cash from operating activities	1,061	752
Investing Activities
Plant and equipment expenditures — utility	(993)	(641)
Plant and equipment expenditures — non-utility	(195)	(27)
Acquisitions related to Business Combinations, net of cash acquired	(128)	0
Proceeds from sale of assets	4	0
Proceeds from sale of nuclear decommissioning trust fund assets	439	176
Investment in nuclear decommissioning trust funds	(438)	(178)
Distributions from equity method investees	1	1
Contributions to equity method investees	(15)	(22)
Notes receivable	(14)	(48)
Other	(3)	(9)
Net cash used for investing activities	(1,342)	(748)
Financing Activities
Issuance of long-term debt, net of issuance costs	1,092	644
Redemption of long-term debt	(300)	0
Short-term borrowings, net	303
Short-term borrowings, net		(453)
Dividends paid on common stock	(195)	(172)
Contributions from noncontrolling interests, principally REF entities	10	9
Distributions to noncontrolling interests	(10)	(21)
Other	(36)	(26)
Net cash from (used for) financing activities	864	(19)
Net Increase (Decrease) in Cash, Cash Equivalents, and Restricted Cash	583	(15)
Cash, Cash Equivalents, and Restricted Cash at Beginning of Period	93	76
Cash, Cash Equivalents, and Restricted Cash at End of Period	676	61
Supplemental disclosure of non-cash investing and financing activities
Plant and equipment expenditures in accounts payable	285	235
DTE Electric
Operating Activities
Net Income	94	147
Adjustments to reconcile Net Income to Net cash from operating activities:
Depreciation and amortization	258	221
Nuclear fuel amortization	13	15
Allowance for equity funds used during construction	(6)	(6)
Deferred income taxes	7	23
Changes in assets and liabilities:
Accounts receivable, net	54	47
Inventories	(18)	51
Accounts payable	106	(36)
Accrued pension liability — affiliates	(6)	(103)
Accrued postretirement liability — affiliates	(8)	(21)
Regulatory assets and liabilities	(152)	130
Other current and noncurrent assets and liabilities	132	(146)
Net cash from operating activities	474	322
Investing Activities
Plant and equipment expenditures	(871)	(531)
Proceeds from sale of nuclear decommissioning trust fund assets	439	176
Investment in nuclear decommissioning trust funds	(438)	(178)
Notes receivable	0	(96)
Other	(2)	(10)
Net cash used for investing activities	(872)	(639)
Financing Activities
Issuance of long-term debt, net of issuance costs	1,092	644
Redemption of long-term debt	(300)	0
Short-term borrowings, net — affiliate	42	(50)
Short-term borrowings, net — other	(283)	(149)
Dividends paid on common stock	(135)	(124)
Other	(17)	(12)
Net cash from (used for) financing activities	399	309
Net Increase (Decrease) in Cash, Cash Equivalents, and Restricted Cash	1	(8)
Cash, Cash Equivalents, and Restricted Cash at Beginning of Period	12	18
Cash, Cash Equivalents, and Restricted Cash at End of Period	13	10
Supplemental disclosure of non-cash investing and financing activities
Plant and equipment expenditures in accounts payable	$ 138	$ 140