Income Taxes (Tables)

9 Months Ended

Sep. 30, 2021

Income Tax Disclosure [Abstract]

Schedule of income tax benefit (provision) and effective tax rate

Income tax benefit (provision) and effective tax rate are as follows:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2021			2020			2021			2020
	(in millions)
Current tax benefit (provision)	$	(11)		$	(1)		$	(29)		$	10
Deferred tax benefit (provision)	(280)			16			(371)			36
Income tax benefit (provision)	$	(291)		$	15		$	(400)		$	46
Effective tax rate	22		%	15		%	23		%	16		%