DEBT - $1 Billion Revolving Credit Facility (Details) - USD ($)	3 Months Ended	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Debt Instrument [Line Items]
Maximum borrowing capacity on line of credit	$ 385,000,000	$ 385,000,000		$ 410,000,000
Credit borrowed		240,000,000	$ 100,000,000
Repaid		240,000,000	$ 100,000,000
Revolving credit facility borrowings	0	0		0
Letters of credit utilized	1,500,000,000	1,500,000,000		1,400,000,000
Revolving Credit Facility | $1 Billion Revolving Credit Facility | Line of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity on line of credit	1,000,000,000	1,000,000,000
Credit borrowed	140,000,000
Repaid	140,000,000
Unamortized debt issuance costs	1,300,000	1,300,000		2,000,000.0
Letters of credit utilized	45,200,000	45,200,000		52,900,000
Availability under revolving credit facility	$ 954,800,000	$ 954,800,000		$ 947,100,000