Income Taxes (Tables)

12 Months Ended

Dec. 31, 2019

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:

	2019			2018			2017
DTE Energy	(In millions)
Income Before Income Taxes	$	1,324		$	1,216		$	1,287
Income tax expense at statutory rate - 21% in 2019 and 2018 - 35% in 2017	$	278		$	255		$	450
Production tax credits	(128		)	(223		)	(189		)
Investment tax credits	(4		)	(4		)	(4		)
TCJA regulatory liability amortization	(38		)	—			—
Depreciation	2			2			(4		)
Noncontrolling interests	—			2			8
AFUDC equity	(4		)	(14		)	(18		)
Employee Stock Ownership Plan dividends	(3		)	(3		)	(5		)
Stock based compensation	(7		)	(3		)	(14		)
State and local income taxes, net of federal benefit	48			60			51
Enactment of the Tax Cuts and Jobs Act	—			21			(105		)
Other, net	8			5			5
Income Tax Expense	$	152		$	98		$	175
Effective income tax rate	11.5		%	8.1		%	13.6		%

	2019			2018			2017
DTE Electric	(In millions)
Income Before Income Taxes	$	854		$	857		$	928
Income tax expense at statutory rate - 21% in 2019 and 2018 - 35% in 2017	$	179		$	180		$	325
Production tax credits	(45		)	(35		)	(36		)
Investment tax credits	(4		)	(3		)	(4		)
TCJA regulatory liability amortization	(35		)	—			—
Depreciation	2			2			3
AFUDC equity	(4		)	(3		)	(5		)
Employee Stock Ownership Plan dividends	(2		)	(2		)	(3		)
State and local income taxes, net of federal benefit	49			49			48
Enactment of the Tax Cuts and Jobs Act	—			7			—
Other, net	(2		)	(2		)	(1		)
Income Tax Expense	$	138		$	193		$	327
Effective income tax rate	16.2		%	22.5		%	35.2		%

Schedule of Components of Income Tax Expense (Benefit)

Components of the Registrants' Income Tax Expense were as follows:

	2019			2018			2017
DTE Energy	(In millions)
Current income tax expense (benefit)
Federal	$	(184	)	$	(17	)	$	(22	)
State and other income tax	7			1			1
Total current income taxes	(177		)	(16		)	(21		)
Deferred income tax expense
Federal	275			38			118
State and other income tax	54			76			78
Total deferred income taxes	329			114			196
	$	152		$	98		$	175

	2019		2018		2017
DTE Electric	(In millions)
Current income tax expense (benefit)
Federal	$	25	$	—	$	(17	)
State and other income tax	16		4		(1		)
Total current income taxes	41		4		(18		)
Deferred income tax expense
Federal	51		131		270
State and other income tax	46		58		75
Total deferred income taxes	97		189		345
	$	138	$	193	$	327

Schedule of Deferred Tax Assets and Liabilities

The Registrants' deferred tax assets (liabilities) were comprised of the following at December 31:

	DTE Energy						DTE Electric
	2019			2018			2019			2018
	(In millions)
Property, plant, and equipment	$	(3,755	)	$	(3,462	)	$	(2,956	)	$	(2,840	)
Regulatory assets and liabilities	(47		)	(54		)	4			(3		)
Tax credit carry-forwards	1,161			1,178			252			250
Pension and benefits	300			311			258			258
Federal net operating loss carry-forward	276			117			—			2
State and local net operating loss carry-forwards	117			59			—			1
Investments in equity method investees	(465		)	(216		)	—			(1		)
Other	138			125			87			87
	(2,275		)	(1,942		)	(2,355		)	(2,246		)
Less valuation allowance	(40		)	(33		)	—			—
Long-term deferred income tax liabilities	$	(2,315	)	$	(1,975	)	$	(2,355	)	$	(2,246	)
Deferred income tax assets	$	2,264		$	2,021		$	865		$	855
Deferred income tax liabilities	(4,579		)	(3,996		)	(3,220		)	(3,101		)
	$	(2,315	)	$	(1,975	)	$	(2,355	)	$	(2,246	)

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:

	2019		2018		2017
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

	2019		2018		2017
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