Provision (Benefit) for Income Taxes (Tables)

12 Months Ended

Dec. 31, 2022

Income Tax Expense (Benefit), Continuing Operations [Abstract]

Schedule of Components of Provision (benefit) for income taxes [Table Text Block]

The Provision (benefit) for income taxes includes:

	Year Ended December 31,
	2022		2021		2020
	(Millions)
Current:
Federal	$	(25)	$	(1)	$	(29)
State	19		3		—
	(6)		2		(29)
Deferred:
Federal	424		421		98
State	7		88		10
	431		509		108
Provision (benefit) for income taxes	$	425	$	511	$	79

Provision for income taxes at federal statutory rate [Table Text Block]

Reconciliations from the Provision (benefit) at statutory rate to recorded Provision (benefit) for income taxes are as follows:

	Year Ended December 31,
	2022		2021		2020
	(Millions)
Provision (benefit) at statutory rate	$	534	$	435	$	58
Increases (decreases) in taxes resulting from:
State income taxes (net of federal benefit)	113		71		6
State deferred income tax rate change	(92)		—		—
Federal valuation allowance	(70)		3		1
Federal settlements	(45)		—		—
Impact of nontaxable noncontrolling interests	(14)		(9)		3
Other – net	(1)		11		11
Provision (benefit) for income taxes	$	425	$	511	$	79

Deferred tax liabilities and Deferred tax assets [Table Text Block]

Significant components of Deferred income tax liabilities are as follows:

	December 31,
	2022		2021
	(Millions)
Gross deferred income tax liabilities:
Property, plant and equipment	$	3,171	$	2,777
Investments	1,784		1,669
Other	138		154
Total gross deferred income tax liabilities	5,093		4,600
Gross deferred income tax assets:
Accrued liabilities	1,108		872
Foreign tax credits	91		140
Federal loss carryovers	730		879
State losses and credits	356		421
Other	121		132
Total gross deferred income tax assets	2,406		2,444
Less valuation allowance	200		297
Net deferred income tax assets	2,206		2,147
Deferred income tax liabilities	$	2,887	$	2,453