Provision (Benefit) for Income Taxes (Tables)

9 Months Ended

Sep. 30, 2019

Income Tax Disclosure [Abstract]

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

The Provision (benefit) for income taxes includes:

	Three Months Ended   September 30,						Nine Months Ended   September 30,
	2019			2018			2019			2018
	(Millions)
Current:
Federal	$	(10	)	$	(19	)	$	(25	)	$	(55	)
State	—			—			—			1
Foreign	1			—			1			—
	(9		)	(19		)	(24		)	(54		)
Deferred:
Federal	73			188			225			312
State	13			21			43			39
	86			209			268			351
Provision (benefit) for income taxes	$	77		$	190		$	244		$	297