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SHORT-TERM DEBT AND LINES OF CREDIT - SHORT-TERM BORROWINGS (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2023
Dec. 31, 2022
Commercial paper    
Short-term borrowings    
Commercial paper outstanding $ 1,258.1 $ 1,643.5
Weighted average interest rate on amounts outstanding 5.16% 4.64%
Average amount of commercial paper outstanding during the period $ 992.4  
Weighted-average interest rate on amounts outstanding during the period 4.84%  
Operating expense loans    
Short-term borrowings    
Operating expense loan outstanding $ 3.1 $ 3.6