Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Operating Activities
Net Income	$ 1,096	$ 904
Net Income	1,093	902
Adjustments to reconcile Net Income to Net cash from operating activities:
Depreciation and amortization	1,059	923
Nuclear fuel amortization	22	45
Allowance for equity funds used during construction	(19)	(18)
Deferred income taxes	350	285
Equity earnings of equity method investees	(96)	(77)
Dividends from equity method investees	122	129
Asset (gains) losses and impairments, net	44	14
Changes in assets and liabilities:
Accounts receivable, net	343	188
Inventories	(54)	5
Prepaid postretirement benefit costs	(56)	(29)
Accounts payable	(80)	(291)
Accrued pension liability	(126)	(179)
Derivative assets and liabilities	15	8
Regulatory assets and liabilities	(30)	203
Other current and noncurrent assets and liabilities	191	(209)
Net cash from operating activities	2,781	1,901
Investing Activities
Plant and equipment expenditures — utility	(2,362)	(1,982)
Plant and equipment expenditures — non-utility	(526)	(177)
Acquisitions related to business combinations, net of cash acquired	(126)	(174)
Proceeds from sale of assets	7	0
Proceeds from sale of nuclear decommissioning trust fund assets	2,054	594
Investment in nuclear decommissioning trust funds	(2,051)	(599)
Distributions from equity method investees	6	9
Contributions to equity method investees	(32)	(128)
Notes receivable	(58)	(81)
Other	(5)	(20)
Net cash used for investing activities	(3,093)	(2,558)
Financing Activities
Issuance of long-term debt, net of issuance costs	2,724	1,433
Redemption of long-term debt	(682)	0
Short-term borrowings, net	160	115
Dividends paid on common stock	(574)	(518)
Contributions from noncontrolling interests, principally REF entities	25	23
Distributions to noncontrolling interests	(27)	(44)
Purchases of noncontrolling interest, principally SGG	0	(300)
Acquisition related deferred payment	(380)	0
Other	(65)	(52)
Net cash from financing activities	1,181	657
Net Increase in Cash, Cash Equivalents, and Restricted Cash	869	0
Cash, Cash Equivalents, and Restricted Cash at Beginning of Period	93	76
Cash, Cash Equivalents, and Restricted Cash at End of Period	962	76
Supplemental disclosure of non-cash investing and financing activities
Plant and equipment expenditures in accounts payable	282	292
DTE Electric
Operating Activities
Net Income	677	587
Adjustments to reconcile Net Income to Net cash from operating activities:
Depreciation and amortization	768	694
Nuclear fuel amortization	22	45
Allowance for equity funds used during construction	(18)	(17)
Deferred income taxes	74	66
Asset (gains) losses and impairments, net	41	13
Changes in assets and liabilities:
Accounts receivable, net	(71)	(20)
Inventories	(30)	(14)
Accounts payable	37	(15)
Accrued pension liability — affiliates	(80)	(107)
Accrued postretirement liability — affiliates	(35)	(16)
Regulatory assets and liabilities	(79)	178
Other current and noncurrent assets and liabilities	(20)	(237)
Net cash from operating activities	1,286	1,157
Investing Activities
Plant and equipment expenditures	(1,981)	(1,611)
Proceeds from sale of nuclear decommissioning trust fund assets	2,054	594
Investment in nuclear decommissioning trust funds	(2,051)	(599)
Other	(14)	(19)
Net cash used for investing activities	(1,992)	(1,635)
Financing Activities
Issuance of long-term debt, net of issuance costs	1,683	643
Redemption of long-term debt	(632)	0
Capital contribution by parent company	400	0
Short-term borrowings, net — affiliate	7	(4)
Short-term borrowings, net — other	(154)	233
Dividends paid on common stock	(404)	(370)
Other	(17)	(16)
Net cash from financing activities	883	486
Net Increase in Cash, Cash Equivalents, and Restricted Cash	177	8
Cash, Cash Equivalents, and Restricted Cash at Beginning of Period	12	18
Cash, Cash Equivalents, and Restricted Cash at End of Period	189	26
Supplemental disclosure of non-cash investing and financing activities
Plant and equipment expenditures in accounts payable	$ 141	$ 168