CREDIT FACILITIES (Details) - USD ($)	12 Months Ended
	Dec. 31, 2024	Sep. 30, 2024	Jul. 25, 2024	Jun. 30, 2024	Jun. 26, 2024	Dec. 31, 2023
Short-term Debt [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 1,350,000,000	$ 1,275,000,000		$ 1,275,000,000	$ 1,200,000,000
Line of Credit Facility Sublimit	20,000,000
Swingline subfacility	60,000,000
Line of Credit Facility Option to Increase Borrowing Capacity	$ 150,000,000
Approved Debt to Capital Ratio	70.00%
Ratio of Indebtedness to Net Capital	0.518
Ratio of Indebtedness to Net Capital Excluding KGSS-I debt	49.50%
Letters of Credit Outstanding, Amount	$ 1,350,000
Short-Term Debt	0
Line of Credit Facility, Remaining Borrowing Capacity	1,349,000,000
Commercial paper maximum borrowing capacity	$ 1,350,000,000	$ 1,275,000,000	$ 1,275,000,000	$ 1,200,000,000
CommercialPaperMaximumMaturityTerm	270 days
Short-term debt	$ 914,600,000					$ 88,500,000
Short-Term Debt, Weighted Average Interest Rate, at Point in Time	4.77%					5.60%