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Provision (Benefit) for Income Taxes
 6 Months Ended
Jun. 30, 2026
Income Tax Disclosure [Abstract]  
Provision (Benefit) for Income Taxes [Text Block] Note 5 – Provision (Benefit) for Income Taxes
Williams’ Provision (benefit) for income taxes includes:
Three Months Ended  
June 30,		Six Months Ended  
June 30,
2026202520262025
(Millions)
Current:
Federal$(6)$84 $(3)$163 
State9 11 15 18 
3 95 12 181 
Deferred:
Federal226 63 430 152 
State31 16 62 34 
257 79 492 186 
Provision (benefit) for income taxes$260 $174 $504 $367 
The effective income tax rates for the total provision (benefit) for the three and six months ended June 30, 2026 and 2025, are greater than the federal statutory rate, primarily due to the effect of state income taxes.