Income Tax Expense (Tables)

6 Months Ended

Jun. 30, 2020

Income Tax Disclosure [Abstract]

Schedule of Effective Income Tax Rate Reconciliation

A reconciliation of income tax expense from continuing operations at the U.S. federal statutory rate of 21% to net income tax expense is as follows:

	Three Months Ended June 30,						Six Months Ended June 30,
	2020			2019			2020			2019
	(in millions)
Income tax expense at statutory federal rate	$	35		$	13		$	8		$	35
Partnership earnings not subject to tax	(28		)	(10		)	(2		)	(36		)
State and local tax, net of federal benefit	1			—			3			—
Other	—			2			2			4
Net income tax expense	$	8		$	5		$	11		$	3