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FINANCING ARRANGEMENTS - SHORT TERM BORROWINGS (Details) - USD ($)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Short-term Debt [Line Items]    
Total short-term debt $ 182,000,000 $ 299,000,000
Add: Current portion of long-term debt 1,000,000 296,000,000
Maximum month-end short-term debt outstanding during the year 380,000,000 299,000,000
Average amount of short-term debt outstanding during the year $ 265,000,000 $ 95,000,000
Weighted-average interest rate on short-term debt at year-end 0.60% 1.90%
Corporate commercial paper facility    
Short-term Debt [Line Items]    
Total short-term debt $ 170,000,000 $ 0
Fixed interest rate 0.30% 0.00%
Other short-term borrowings    
Short-term Debt [Line Items]    
Total short-term debt $ 11,000,000 $ 3,000,000
Fixed interest rate 4.80% 1.90%
Uncommitted Short-Term Financing    
Short-term Debt [Line Items]    
Total short-term debt $ 41,000,000