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Debt and Letters of Credit (Tables)
12 Months Ended
Dec. 31, 2025
Debt Disclosure [Abstract]  
Schedule of Consolidated Debt
Debt consisted of the following:
 December 31,
(in millions)20252024
Borrowings under credit facility$— $— 
Senior Notes
2028 Notes (4.250% Senior Notes)
$506 $543 
Unamortized discount and deferred financing costs(2)(2)
2029 Notes (1.125% Convertible Senior Notes)
575 575 
Unamortized deferred financing costs(9)(12)
Total debt
$1,070 $1,104