Consolidated Statements of Cash Flows (Unaudited) - DTE Electric Company - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Operating Activities
Net Income	$ 394	$ 397
Adjustments to reconcile Net Income to Net cash from operating activities:
Depreciation and amortization	358	368
Nuclear fuel amortization	3	15
Allowance for equity funds used during construction	(8)	(7)
Deferred income taxes	18	41
Asset (gains) losses and impairments, net	0	1
Changes in assets and liabilities:
Accounts receivable, net	18	107
Inventories	129	52
Accounts payable	(42)	(20)
Regulatory assets and liabilities	(154)	128
Other current and noncurrent assets and liabilities	(76)	(187)
Net cash from operating activities	808	1,057
Investing Activities
Proceeds from sale of nuclear decommissioning trust fund assets	207	271
Investment in nuclear decommissioning trust funds	(209)	(273)
Other	(9)	(10)
Net cash used for investing activities	(782)	(705)
Financing Activities
Issuance of long-term debt, net of discount and issuance costs	1,119	989
Redemption of long-term debt	(250)	0
Dividends paid on common stock	(171)	(210)
Other	(30)	(35)
Net cash from financing activities	95	702
Net Increase in Cash, Cash Equivalents, and Restricted Cash	121	1,054
Cash, Cash Equivalents, and Restricted Cash at Beginning of Period	35	516
Cash, Cash Equivalents, and Restricted Cash at End of Period	156	1,570
Supplemental disclosure of non-cash investing and financing activities
Plant and equipment expenditures in accounts payable	300	208
DTE Electric
Operating Activities
Net Income	201	208
Adjustments to reconcile Net Income to Net cash from operating activities:
Depreciation and amortization	294	260
Nuclear fuel amortization	3	15
Allowance for equity funds used during construction	(7)	(6)
Deferred income taxes	0	15
Changes in assets and liabilities:
Accounts receivable, net	(18)	114
Inventories	12	24
Accounts payable	34	(8)
Prepaid postretirement benefit costs — affiliates	(15)	(8)
Accrued pension liability — affiliates	(13)	(12)
Accrued postretirement liability — affiliates	(8)	(2)
Regulatory assets and liabilities	(165)	121
Other current and noncurrent assets and liabilities	(33)	(150)
Net cash from operating activities	285	571
Investing Activities
Plant and equipment expenditures	(609)	(502)
Proceeds from sale of nuclear decommissioning trust fund assets	207	271
Investment in nuclear decommissioning trust funds	(209)	(273)
Other	(8)	(9)
Net cash used for investing activities	(619)	(513)
Financing Activities
Issuance of long-term debt, net of discount and issuance costs	1,119	989
Redemption of long-term debt	(250)	0
Short-term borrowings, net — affiliate	(53)	(23)
Short-term borrowings, net — other	(153)	0
Dividends paid on common stock	(277)	(147)
Other	(11)	(15)
Net cash from financing activities	375	804
Net Increase in Cash, Cash Equivalents, and Restricted Cash	41	862
Cash, Cash Equivalents, and Restricted Cash at Beginning of Period	9	16
Cash, Cash Equivalents, and Restricted Cash at End of Period	50	878
Supplemental disclosure of non-cash investing and financing activities
Plant and equipment expenditures in accounts payable	$ 251	$ 141