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REVENUES (Tables)
 12 Months Ended
Dec. 31, 2022
Revenue from Contract with Customer [Abstract]  
Contract with Customer, Asset and Liability [Table Text Block] The following table sets forth the balances in contract liabilities for the periods indicated:
Contract Liabilities
(Millions of dollars)
Balance at January 1, 2021$41.4 
Revenue recognized included in beginning balance(23.7)
Net additions33.8 
Balance at December 31, 2021 (a)51.5 
Revenue recognized included in beginning balance(36.0)
Net additions36.9 
Balance at December 31, 2022 (b)$52.4 
(a) - Contract liabilities of $35.3 million and $16.2 million are included in other current liabilities and other deferred credits, respectively, in our Consolidated Balance Sheet.
(b) - Contract liabilities of $23.3 million and $29.1 million are included in other current liabilities and other deferred credits, respectively, in our Consolidated Balance Sheet.
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block]
The following table presents aggregate value allocated to unsatisfied performance obligations as of December 31, 2022, and the amounts we expect to recognize in revenue in future periods, related primarily to firm transportation and storage contracts with remaining contract terms ranging from one month to 22 years:
Expected Period of Recognition in Revenue
(Millions of dollars)
2023$432.7 
2024360.6 
2025265.9 
2026255.0 
2027 and beyond861.9 
Total estimated transaction price allocated to unsatisfied performance obligations$2,176.1