Consolidated Statements of Financial Position (Unaudited) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Current Assets
Cash and cash equivalents	$ 1,568	$ 514
Restricted cash	2	2
Accounts receivable (less allowance for doubtful accounts)
Customer	1,553	1,665
Other	132	127
Inventories
Fuel and gas	204	335
Materials, supplies, and other	460	381
Derivative assets	73	116
Regulatory assets	117	129
Other	267	229
Total Current Assets	4,376	3,498
Investments
Nuclear decommissioning trust funds	1,924	1,855
Investments in equity method investees	1,856	1,868
Other	197	196
Total Investments	3,977	3,919
Property
Property, plant, and equipment	38,430	37,997
Accumulated depreciation and amortization	(10,158)	(10,028)
Property, plant, and equipment, net	28,272	27,969
Other Assets
Goodwill	2,466	2,466
Regulatory assets	4,070	4,128
Intangible assets	2,318	2,339
Notes receivable	304	280
Derivative assets	37	40
Prepaid postretirement costs	576	561
Operating lease right-of-use assets	145	152
Other	158	144
Total Other Assets	10,074	10,110
Total Assets	46,699	45,496
Accounts payable
Accounts payable	955	1,029
Accrued interest	169	158
Dividends payable	210	210
Short-term borrowings	52	38
Current portion long-term debt, including finance leases	469	469
Derivative liabilities	89	68
Gas inventory equalization	68	0
Regulatory liabilities	29	39
Short-term borrowings
Operating lease liabilities	33	33
Other	521	647
Total Current Liabilities	2,595	2,691
Long-Term Debt (net of current portion)
Mortgage bonds, notes, and other	18,796	17,802
Junior subordinated debentures	1,175	1,175
Finance lease liabilities	22	24
Total Long-Term Debt (net of current portion)	19,993	19,001
Other Liabilities
Deferred income taxes	2,894	2,822
Regulatory liabilities	3,416	3,363
Asset retirement obligations	2,879	2,839
Unamortized investment tax credit	160	162
Derivative liabilities	119	60
Accrued pension liability	773	797
Accrued postretirement liability	404	407
Nuclear decommissioning	295	283
Operating lease liabilities	105	111
Other	352	371
Total Other Liabilities	11,397	11,215
Commitments and Contingencies (Notes 6 and 13)
Equity
Common stock	5,344	5,406
Retained earnings	7,342	7,156
Accumulated other comprehensive loss	(134)	(137)
Total DTE Energy/DTE Electric Company Equity	12,552	12,425
Noncontrolling interests	162	164
Total Equity	12,714	12,589
Total Liabilities and Equity	46,699	45,496
DTE Electric
Current Assets
Cash and cash equivalents	878	16
Accounts receivable (less allowance for doubtful accounts)
Customer	664	763
Affiliates	5	13
Other	55	62
Inventories
Fuel and gas	137	187
Materials, supplies, and other	318	292
Regulatory assets	106	123
Other	122	71
Total Current Assets	2,285	1,527
Investments
Nuclear decommissioning trust funds	1,924	1,855
Other	44	42
Total Investments	1,968	1,897
Property
Property, plant, and equipment	26,481	26,171
Accumulated depreciation and amortization	(7,112)	(7,050)
Property, plant, and equipment, net	19,369	19,121
Other Assets
Regulatory assets	3,404	3,440
Intangible assets	6	11
Prepaid postretirement costs — affiliates	343	335
Operating lease right-of-use assets	73	75
Other	115	107
Total Other Assets	3,941	3,968
Total Assets	27,563	26,513
Accounts payable
Affiliates	70	62
Other	361	410
Accrued interest	79	91
Current portion long-term debt, including finance leases	468	468
Regulatory liabilities	24	18
Short-term borrowings
Affiliates	78	101
Operating lease liabilities	11	11
Other	169	219
Total Current Liabilities	1,260	1,380
Long-Term Debt (net of current portion)
Mortgage bonds, notes, and other	8,764	7,774
Finance lease liabilities	11	13
Total Long-Term Debt (net of current portion)	8,775	7,787
Other Liabilities
Deferred income taxes	2,560	2,525
Regulatory liabilities	2,485	2,432
Asset retirement obligations	2,645	2,607
Unamortized investment tax credit	160	162
Nuclear decommissioning	295	283
Accrued pension liability — affiliates	719	731
Accrued postretirement liability — affiliates	382	384
Operating lease liabilities	54	56
Other	97	96
Total Other Liabilities	9,397	9,276
Commitments and Contingencies (Notes 6 and 13)
Equity
Common stock	5,447	5,447
Retained earnings	2,684	2,623
Total DTE Energy/DTE Electric Company Equity	8,131	8,070
Total Liabilities and Equity	$ 27,563	$ 26,513