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Provision (Benefit) for Income Taxes (Tables)
3 Months Ended
Mar. 31, 2022
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 
March 31,
20222021
(Millions)
Current:
Federal$$(2)
State(1)
(3)
Deferred:
Federal94 115 
State21 29 
115 144 
Provision (benefit) for income taxes$118 $141