Consolidated Statements of Cash Flows (Unaudited) - DTE Electric Company - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Operating Activities
Net Income	$ 313	$ 445
Adjustments to reconcile Net Income to Net cash from operating activities:
Depreciation and amortization	423	385
Nuclear fuel amortization	12	16
Allowance for equity funds used during construction	(18)	(9)
Deferred income taxes	23	52
Changes in assets and liabilities:
Accounts receivable, net	172	486
Inventories	7	133
Accounts payable	(179)	(419)
Regulatory assets and liabilities	146	159
Other current and noncurrent assets and liabilities	1	(180)
Net cash from operating activities	1,042	924
Investing Activities
Proceeds from sale of nuclear decommissioning trust fund assets	108	166
Investment in nuclear decommissioning trust funds	(110)	(168)
Notes receivable	(356)
Other	(7)	(50)
Net cash used for investing activities	(1,616)	(981)
Financing Activities
Issuance of long-term debt, net of discount and issuance costs	2,181	1,386
Redemption of long-term debt	(100)	0
Short-term borrowings, net	(993)	(1,032)
Dividends paid on common stock	(202)	(188)
Other	(14)	(15)
Net cash from financing activities	872	151
Net Increase in Cash, Cash Equivalents, and Restricted Cash	298	94
Cash, Cash Equivalents, and Restricted Cash at Beginning of Period	51	43
Cash, Cash Equivalents, and Restricted Cash at End of Period	349	137
Supplemental disclosure of non-cash investing and financing activities
Plant and equipment expenditures in accounts payable	398	333
DTE Electric
Operating Activities
Net Income	170	100
Adjustments to reconcile Net Income to Net cash from operating activities:
Depreciation and amortization	350	317
Nuclear fuel amortization	12	16
Allowance for equity funds used during construction	(18)	(9)
Deferred income taxes	18	19
Changes in assets and liabilities:
Accounts receivable, net	7	74
Inventories	(32)	(21)
Accounts payable	59	41
Prepaid postretirement benefit costs — affiliates	(10)	(12)
Accrued pension liability — affiliates	(13)	(13)
Accrued postretirement liability — affiliates	(8)	(8)
Regulatory assets and liabilities	127	93
Other current and noncurrent assets and liabilities	(84)	(120)
Net cash from operating activities	578	477
Investing Activities
Plant and equipment expenditures	(868)	(743)
Proceeds from sale of nuclear decommissioning trust fund assets	108	166
Investment in nuclear decommissioning trust funds	(110)	(168)
Notes receivable	0	(15)
Other	(12)	(50)
Net cash used for investing activities	(882)	(810)
Financing Activities
Issuance of long-term debt, net of discount and issuance costs	993	1,186
Redemption of long-term debt	(100)	0
Dividends paid on common stock	(194)	(182)
Other	(12)	(11)
Net cash from financing activities	512	398
Net Increase in Cash, Cash Equivalents, and Restricted Cash	208	65
Cash, Cash Equivalents, and Restricted Cash at Beginning of Period	32	24
Cash, Cash Equivalents, and Restricted Cash at End of Period	240	89
Supplemental disclosure of non-cash investing and financing activities
Plant and equipment expenditures in accounts payable	328	277
DTE Electric | Affiliates
Financing Activities
Short-term borrowings, net	0	(27)
DTE Electric | Other
Financing Activities
Short-term borrowings, net	$ (175)	$ (568)