Income Tax Expense (Tables)

12 Months Ended

Dec. 31, 2019

Income Tax Disclosure [Abstract]

Schedule of Federal and State Components of Income Tax Expense (Benefit)

The components of the federal and state income tax expense (benefit) are summarized as follows:

	Year Ended December 31,
	2019			2018			2017
	(in millions)
Current:
Federal	$	7		$	24		$	—
State	(30		)	4			2
Total current income tax expense (benefit)	(23		)	28			2
Deferred:
Federal	2			(14		)	(302		)
State	4			20			(6		)
Total deferred tax expense (benefit)	6			6			(308		)
Net income tax expense (benefit)	$	(17	)	$	34		$	(306	)

Schedule of Effective Income Tax Rate Reconciliation

A reconciliation of income tax expense at the U.S. federal statutory rate to net income tax expense (benefit) is as follows:

	Year Ended December 31,
	2019			2018			2017
	(in millions)
Tax at statutory federal rate	$	62		$	19		$	7
Partnership earnings not subject to tax	(62		)	(9		)	(126		)
Goodwill impairment	—			—			36
State and local tax, including federal expense (benefit)	(17		)	24			(6		)
Statutory rate change	—			—			(225		)
Other	—			—			8
Net income tax expense (benefit)	$	(17	)	$	34		$	(306	)

Schedule of Principal Components of Deferred Tax Assets (Liabilities)

Deferred taxes result from the temporary differences between financial reporting carrying amounts and the tax basis of existing assets and liabilities. Principal components of deferred tax assets and liabilities are as follows:

	December 31, 2019		December 31, 2018
	(in millions)
Deferred tax assets:
Environmental, asset retirement obligations, and other reserves	$	—	$	12
Inventories	—		2
Net operating and other loss carry forwards	4		—
Other	32		49
Total deferred tax assets	36		63
Deferred tax liabilities:
Property and equipment	24		63
Trademarks and other intangibles	72		63
Investments in affiliates	39		15
Other	10		25
Total deferred tax liabilities	145		166
Net deferred income tax liabilities	$	109	$	103

Summary of Income Tax Contingencies [Table Text Block]

The following table sets forth the changes in unrecognized tax benefits:

	Years Ended December 31,
	2019		2018		2017
	(in millions)
Balance at beginning of year	$	—	$	—	$	—
Additions attributable to tax positions taken in the current year	—		—		—
Additions attributable to tax positions taken in prior years	11		—		—
Reduction attributable to tax positions taken in prior years	—		—		—
Lapse of statute	—		—		—
Balance at end of year	$	11	$	—	$	—