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BORROWINGS - Debt (Details) - USD ($)
$ in Millions
Mar. 31, 2023
Mar. 31, 2022
Dec. 31, 2021
Borrowings      
Financing lease obligations $ 242 $ 219 $ 222
Total 3,238 3,242 3,251
Less: Unamortized discount 5 5 5
Less: Unamortized debt issuance costs 13 15 15
Less: Current maturities of long-term debt 110 96 103
Total $ 3,111 3,127 3,128
Finance lease obligations, interest rate (as a percent) 3.36%    
Unsecured floating-rate term loan      
Borrowings      
Long-term debt $ 500 500 500
Debt instrument, weighted-average interest rate (as a percent) 5.83%    
Unsecured floating-rate term loan | LIBOR      
Borrowings      
Debt instrument, weighted-average interest rate (as a percent) 1.125%    
Commercial loan agreement      
Borrowings      
Long-term debt $ 96 123 129
Debt instrument, weighted-average interest rate (as a percent) 3.00%    
Unsecured senior notes due 2026      
Borrowings      
Long-term debt $ 700 700 700
Debt instrument, weighted-average interest rate (as a percent) 2.05%    
Unsecured senior notes due 2028      
Borrowings      
Long-term debt $ 500 500 500
Debt instrument, weighted-average interest rate (as a percent) 2.70%    
Unsecured senior notes due 2031      
Borrowings      
Long-term debt $ 650 650 650
Debt instrument, weighted-average interest rate (as a percent) 3.15%    
Unsecured senior notes due 2041      
Borrowings      
Long-term debt $ 550 $ 550 $ 550
Debt instrument, weighted-average interest rate (as a percent) 4.10%