Debt and Letters of Credit (Tables)

3 Months Ended

Mar. 31, 2024

Debt Disclosure [Abstract]

Schedule of Debt

Debt consisted of the following:

(in millions)	March 31, 2024		December 31, 2023
Borrowings under credit facility	$	—	$	—
Senior Notes
2028 Notes (4.250% Senior Notes)	590		600
Unamortized discount and deferred financing costs	(3)		(3)
2029 Notes (1.125% Convertible Senior Notes)	575		575
Unamortized deferred financing costs	(13)		(14)
Total debt	$	1,149	$	1,158