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Debt and Letters of Credit (Tables)
 6 Months Ended
Jun. 30, 2022
Debt Disclosure [Abstract]  
Schedule of debt Debt consisted of the following:
(in millions)June 30, 2022December 31, 2021
Borrowings under credit facility$— $— 
Current:
2023 Notes$153 $— 
Other borrowings28 18 
Total current$181 $18 
Long-term:
Senior Notes
2023 Notes$— $193 
2024 Notes381 381 
Unamortized discount on 2024 Notes(1)(1)
Unamortized deferred financing costs(1)(1)
2028 Notes600 600 
Unamortized discount on 2028 Notes(1)(1)
Unamortized deferred financing costs(3)(3)
Other long-term borrowings5 6 
Total long-term$980 $1,174