Provision (Benefit) for Income Taxes (Tables)

12 Months Ended

Dec. 31, 2023

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 from continuing operations includes:

	Year Ended December 31,
	2023		2022		2021
	(Millions)
Current:
Federal	$	3	$	(25)	$	(1)
State	21		19		3
	24		(6)		2
Deferred:
Federal	872		424		421
State	109		7		88
	981		431		509
Provision (benefit) for income taxes	$	1,005	$	425	$	511

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

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

	Year Ended December 31,
	2023		2022		2021
	(Millions)
Provision (benefit) at statutory rate	$	925	$	534	$	435
Increases (decreases) in taxes resulting from:
State income taxes (net of federal benefit)	129		113		71
State deferred income tax rate change	(25)		(92)		—
Federal valuation allowance	—		(70)		3
Federal settlements	—		(45)		—
Impact of nontaxable noncontrolling interests	(26)		(14)		(9)
Other – net	2		(1)		11
Provision (benefit) for income taxes	$	1,005	$	425	$	511

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

Significant components of Deferred income tax liabilities are as follows:

	December 31,
	2023		2022
	(Millions)
Gross deferred income tax liabilities:
Property, plant and equipment	$	3,541	$	3,171
Investments	1,740		1,784
Other	146		138
Total gross deferred income tax liabilities	5,427		5,093
Gross deferred income tax assets:
Accrued liabilities	935		1,108
Foreign tax credits	35		91
Federal loss carryovers	398		730
State losses and credits	293		356
Other	103		121
Total gross deferred income tax assets	1,764		2,406
Less valuation allowance	183		200
Net deferred income tax assets	1,581		2,206
Deferred income tax liabilities	$	3,846	$	2,887