Consolidated Statements of Financial Position - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Current Assets
Cash and cash equivalents	$ 514	$ 93
Restricted cash	2	0
Accounts receivable (less allowance for doubtful accounts)
Customer	1,665	1,642
Other	127	245
Inventories
Fuel and gas	335	373
Materials, supplies, and other	381	386
Derivative assets	116	133
Regulatory assets	129	5
Other	229	209
Total Current Assets	3,498	3,086
Investments
Nuclear decommissioning trust funds	1,855	1,661
Investments in equity method investees	1,868	1,862
Other	196	265
Total Investments	3,919	3,788
Property
Property, plant, and equipment	37,997	35,072
Accumulated depreciation and amortization	(10,028)	(9,755)
Property, plant and equipment, net	27,969	25,317
Other Assets
Goodwill	2,466	2,464
Regulatory assets	4,128	4,171
Intangible assets	2,339	2,393
Notes receivable	280	202
Derivative assets	40	41
Prepaid postretirement costs	561	454
Operating lease right-of-use assets	152	169
Other	144	183
Total Other Assets	10,110	10,077
Total Assets	45,496	42,268
Current Liabilities
Accounts payable	1,029	1,076
Accounts payable
Accrued interest	158	147
Dividends payable	210	195
Short-term borrowings	38	828
Current portion long-term debt, including finance leases	469	687
Derivative liabilities	68	83
Regulatory liabilities	39	65
Short-term borrowings
Operating lease liabilities	33	33
Acquisition related deferred payment	0	379
Other	647	504
Total Current Liabilities	2,691	3,997
Long-Term Debt (net of current portion)
Mortgage bonds, notes, and other	17,802	14,778
Junior subordinated debentures	1,175	1,146
Finance lease obligations	24	11
Total Long-Term Debt (net of current portion)	19,001	15,935
Other Liabilities
Deferred income taxes	2,822	2,315
Regulatory liabilities	3,363	3,264
Asset retirement obligations	2,839	2,672
Unamortized investment tax credit	162	166
Derivative liabilities	60	86
Accrued pension liability	797	808
Accrued postretirement liability	407	385
Nuclear decommissioning	283	249
Operating lease liability	111	127
Other	371	428
Total Other Liabilities	11,215	10,500
Commitments and Contingencies (Notes 10 and 19)
Equity
Common stock	5,406	5,233
Retained earnings	7,156	6,587
Accumulated other comprehensive loss	(137)	(148)
Total DTE Energy Company/DTE Electric Company Equity	12,425	11,672
Noncontrolling interests	164	164
Total Equity	12,589	11,836
Total Liabilities and Equity	45,496	42,268
DTE Electric
Current Assets
Cash and cash equivalents	16	12
Accounts receivable (less allowance for doubtful accounts)
Customer	763	729
Affiliates	13	25
Other	62	41
Inventories
Fuel and gas	187	187
Materials, supplies, and other	292	280
Regulatory assets	123	5
Other	71	78
Total Current Assets	1,527	1,357
Investments
Nuclear decommissioning trust funds	1,855	1,661
Other	42	38
Total Investments	1,897	1,699
Property
Property, plant, and equipment	26,171	24,279
Accumulated depreciation and amortization	(7,050)	(6,706)
Property, plant and equipment, net	19,121	17,573
Other Assets
Regulatory assets	3,440	3,448
Intangible assets	11	15
Prepaid postretirement costs — affiliates	335	266
Operating lease right-of-use assets	75	87
Other	107	143
Total Other Assets	3,968	3,959
Total Assets	26,513	24,588
Accounts payable
Affiliates	62	59
Other	410	406
Accrued interest	91	84
Current portion long-term debt, including finance leases	468	636
Regulatory liabilities	18	40
Short-term borrowings
Affiliates	101	97
Other	0	354
Operating lease liabilities	11	12
Other	219	155
Total Current Liabilities	1,380	1,843
Long-Term Debt (net of current portion)
Mortgage bonds, notes, and other	7,774	6,548
Finance lease obligations	13	4
Total Long-Term Debt (net of current portion)	7,787	6,552
Other Liabilities
Deferred income taxes	2,525	2,355
Regulatory liabilities	2,432	2,546
Asset retirement obligations	2,607	2,447
Unamortized investment tax credit	162	166
Nuclear decommissioning	283	249
Accrued pension liability — affiliates	731	717
Accrued postretirement liability — affiliates	384	367
Operating lease liability	56	67
Other	96	84
Total Other Liabilities	9,276	8,998
Commitments and Contingencies (Notes 10 and 19)
Equity
Common stock	5,447	4,811
Retained earnings	2,623	2,384
Total DTE Energy Company/DTE Electric Company Equity	8,070	7,195
Total Liabilities and Equity	$ 26,513	$ 24,588