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Income Taxes (Tables)
12 Months Ended
Dec. 31, 2021
Income Tax Disclosure [Abstract]  
Schedule of Effective Income Tax Rate Reconciliation
The Registrants' total Income Tax Expense varied from the statutory federal income tax rate for the following reasons:
202120202019
DTE Energy(In millions)
Income Before Income Taxes$656 $1,082 $1,013 
Income tax expense at 21% statutory rate$138 $227 $213 
Production tax credits(138)(121)(128)
TCJA regulatory liability amortization(103)(76)(38)
State deferred tax remeasurement due to separation of DT Midstream, net of federal benefit(85)— — 
Investment tax credits(3)(4)(4)
Net operating loss carryback (34)— 
Enactment of West Virginia income tax legislation, net of federal benefit8 — — 
Deferred intercompany gain9 — — 
Valuation allowance on charitable contribution carryforwards18 
State and local income taxes, excluding items above, net of federal benefit30 47 29 
Other, net(4)(5)(7)
Income Tax Expense (Benefit)$(130)$37 $71 
Effective income tax rate(19.9)%3.4 %7.0 %
202120202019
DTE Electric(In millions)
Income Before Income Taxes$970 $887 $854 
Income tax expense at 21% statutory rate$204 $186 $179 
TCJA regulatory liability amortization(73)(62)(35)
Production tax credits(70)(55)(45)
Investment tax credits(3)(4)(4)
State and local income taxes, excluding items above, net of federal benefit54 50 49 
Other, net(8)(6)(6)
Income Tax Expense$104 $109 $138 
Effective income tax rate10.7 %12.3 %16.2 %
Schedule of Components of Income Tax Expense (Benefit)
Components of the Registrants' Income Tax Expense were as follows:
202120202019
DTE Energy(In millions)
Current income tax expense (benefit)
Federal$(33)$(249)$(183)
State and other income tax(12)
Total current income taxes(45)(245)(180)
Deferred income tax expense (benefit)
Federal(42)227 218 
State and other income tax(43)55 33 
Total deferred income taxes(85)282 251 
$(130)$37 $71 
202120202019
DTE Electric(In millions)
Current income tax expense (benefit)
Federal$(11)$15 $25 
State and other income tax(7)16 
Total current income taxes(18)20 41 
Deferred income tax expense
Federal47 30 51 
State and other income tax75 59 46 
Total deferred income taxes122 89 97 
$104 $109 $138 
Schedule of Deferred Tax Assets and Liabilities
The Registrants' deferred tax assets (liabilities) were comprised of the following at December 31:
DTE EnergyDTE Electric
2021202020212020
(In millions)
Property, plant, and equipment$(3,970)$(3,691)$(3,428)$(3,099)
Regulatory assets and liabilities(117)(102)(64)(53)
Tax credit carry-forwards1,260 1,144 379 278 
Pension and benefits310 310 282 264 
Federal net operating loss carry-forward199 109 5 — 
State and local net operating loss carry-forwards73 36 15 — 
Investments in equity method investees58 51 (1)— 
Other75 115 71 85 
(2,112)(2,028)(2,741)(2,525)
Less: Valuation allowance(51)(41) — 
Long-term deferred income tax liabilities$(2,163)$(2,069)$(2,741)$(2,525)
Deferred income tax assets$2,224 $2,050 $988 $883 
Deferred income tax liabilities(4,387)(4,119)(3,729)(3,408)
$(2,163)$(2,069)$(2,741)$(2,525)
Schedule of Unrecognized Tax Benefits Roll Forward
A reconciliation of the beginning and ending amount of unrecognized tax benefits for the Registrants is as follows:
202120202019
DTE Energy(In millions)
Balance at January 1$10 $10 $10 
Additions for tax positions of prior years — — 
Balance at December 31$10 $10 $10 
202120202019
DTE Electric(In millions)
Balance at January 1$13 $13 $13 
Additions for tax positions of prior years — — 
Balance at December 31$13 $13 $13