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Debt and Letters of Credit (Tables)
6 Months Ended
Jun. 30, 2025
Debt Disclosure [Abstract]  
Schedule of Debt
Debt consisted of the following:
(in millions)June 30,
2025
December 31, 2024
Borrowings under credit facility$— $— 
Senior Notes
2028 Notes (4.250% Senior Notes)
507 543 
Unamortized discount and deferred financing costs(2)(2)
2029 Notes (1.125% Convertible Senior Notes)
575 575 
Unamortized deferred financing costs(10)(12)
Total debt$1,070 $1,104