LONG-TERM DEBT - Narrative (Details)	1 Months Ended	3 Months Ended			6 Months Ended
	Jul. 31, 2024 USD ($)	Jun. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Mar. 31, 2023 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Debt Instrument [Line Items]
Payment for Debt Extinguishment or Debt Prepayment Cost						$ 5,000,000
Debt Instrument, interest rate, stated percentage		7.00%			7.00%
Debt Instrument, Consolidated Total, Maximum Leverage Ratio		375.00%			375.00%
Ration Below 2.50
Debt Instrument [Line Items]
Debt Instrument, Consolidated Total Leverage Ratio, Minimum		2.50
Ration Below 2.50 | Ratio Equal to Or Above 2.00
Debt Instrument [Line Items]
Maximum annual restricted payments		$ 60,000,000
Ratio Below 2.00
Debt Instrument [Line Items]
Income Tax Examination, Maximum Annual Restricted Payments Increase		$ 90,000,000
Ratio Equal to Or Above 2.00
Debt Instrument [Line Items]
Debt Instrument, Consolidated Total Leverage Ratio, Minimum		2.00
Maximum Deposit Amount
Debt Instrument [Line Items]
Income Tax Examination, Deposit Amount With Credit Agreement Agent to Eliminate Maximum Annual Restricted Payments		$ 120,000,000
Minimum Deposit Amount
Debt Instrument [Line Items]
Income Tax Examination, Deposit Amount With Credit Agreement Agent to Eliminate Maximum Annual Restricted Payments		60,000,000
Income Tax Examination, Current Amount Deposited with Credit Agreement Agent							$ 60,000,000
Available Liquidity
Debt Instrument [Line Items]
Income Tax Examination, Available Liquidity Required to Eliminate Limits on Maximum Annual Restricted Payments		225,000,000
Securitization Program
Debt Instrument [Line Items]
Total borrowing capacity		$ 120,000,000			$ 120,000,000		$ 120,000,000
Line of Credit Facility, Interest Rate at Period End		6.24%			6.24%		5.92%
Long-term debt and lease obligation		$ 100,000,000			$ 100,000,000		$ 117,000,000
Securitization Program | Subsequent Event
Debt Instrument [Line Items]
Total borrowing capacity	$ 110,000,000
Term Loan F Notes Due 2027 | Interest Rate Swap | Designated as Hedging Instrument | Cash Flow Hedging | 2024
Debt Instrument [Line Items]
Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimate of Time to Transfer						1 year
Term Loan F Notes Due 2027 | Interest Rate Swap | Designated as Hedging Instrument | Cash Flow Hedging | 2026
Debt Instrument [Line Items]
Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimate of Time to Transfer			2 years
Term Loan A - due 2028 (b) | Interest Rate Swap | Other Liabilities
Debt Instrument [Line Items]
Interest Rate Fair Value Hedge Liability at Fair Value							5,000,000
Term Loan A - due 2028 (b) | Interest Rate Swap | Deferred Charges and Other Assets
Debt Instrument [Line Items]
Fair value of interest rate swaps		200,000			200,000
Term Loan A - due 2028 (b) | Interest Rate Swap | Designated as Hedging Instrument | Cash Flow Hedging | 2028 Maturity
Debt Instrument [Line Items]
Notional amount		$ 261,000,000			$ 261,000,000
Term Loan A - due 2028 (b) | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Minimum | Interest Rate Swap
Debt Instrument [Line Items]
Derivative, fixed interest rate		4.13%			4.13%
Term Loan A - due 2028 (b) | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Maximum | Interest Rate Swap
Debt Instrument [Line Items]
Derivative, fixed interest rate		4.16%			4.16%
Term Loan F - due 2027 (a) | Interest Rate Swap | Deferred Charges and Other Assets
Debt Instrument [Line Items]
Fair value of interest rate swaps		$ 3,000,000			$ 3,000,000		1,000,000
Term Loan F - due 2027 (a) | Interest Rate Swap | Designated as Hedging Instrument | Cash Flow Hedging | 2024
Debt Instrument [Line Items]
Notional amount							200,000,000	$ 200,000,000
Swap Unwind, Cash Proceeds				$ 12,000,000
Number of Interest Rate Swaps Unwound				4
Term Loan F - due 2027 (a) | Interest Rate Swap | Designated as Hedging Instrument | Cash Flow Hedging | 2026
Debt Instrument [Line Items]
Notional amount						$ 200,000,000		$ 200,000,000
Swap Unwind, Cash Proceeds			$ 19,000,000
Term Loan F - due 2027 (a) | Interest Rate Swap | Designated as Hedging Instrument | Cash Flow Hedging | 2025
Debt Instrument [Line Items]
Notional amount				$ 200,000,000
Number of New Interest Rate Swaps				4
Term Loan F - due 2027 (a) | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Minimum | Interest Rate Swap
Debt Instrument [Line Items]
Derivative, fixed interest rate		3.72%			3.72%
Term Loan F - due 2027 (a) | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Maximum | Interest Rate Swap
Debt Instrument [Line Items]
Derivative, fixed interest rate		3.75%			3.75%
Term Loan F-2 Due 2031 | Interest Rate Swap | Designated as Hedging Instrument | Cash Flow Hedging | 2029 | Subsequent Event
Debt Instrument [Line Items]
Notional amount	$ 235,000,000
Number of New Interest Rate Swaps	5
Term Loan F-2 Due 2031 | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Minimum | Interest Rate Swap | Subsequent Event
Debt Instrument [Line Items]
Derivative, fixed interest rate	3.80%
Term Loan F-2 Due 2031 | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Maximum | Interest Rate Swap | Subsequent Event
Debt Instrument [Line Items]
Derivative, fixed interest rate	3.82%
Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Total borrowing capacity		$ 450,000,000			$ 450,000,000		450,000,000
Long-term line of credit outstanding		0			0	60,000,000	0
Letters of Credit Outstanding, Amount		21,000,000			21,000,000		21,000,000
Line of Credit Facility, Remaining Borrowing Capacity		$ 429,000,000			$ 429,000,000		429,000,000
Debt Instrument, interest rate, stated percentage		1.60%			1.60%
Line of Credit | Revolving Credit Facility | Subsequent Event
Debt Instrument [Line Items]
Total borrowing capacity	$ 400,000,000
Line of Credit | Revolving Credit Facility | Term Loan A - due 2028 (b) | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Minimum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate					0.00%
Senior Notes | 7.00% Senior Notes - due 2029 (c)
Debt Instrument [Line Items]
Debt Instrument, interest rate, stated percentage		7.00%			7.00%
Debt Instrument, Repaid, Principal						360,000,000
Long-term debt and lease obligation		$ 89,000,000			$ 89,000,000		$ 89,000,000
Senior Notes | 7.00% Senior Notes - due 2029 (c) | Subsequent Event
Debt Instrument [Line Items]
Notice of Redemption, Amount	90,000,000
Senior Notes | 7.00% Senior Notes - due 2029 (c) | Interest (expense) income
Debt Instrument [Line Items]
Payment for Debt Extinguishment or Debt Prepayment Cost						$ 5,000,000
Senior Notes | Term Loan F - due 2027 (a) | Subsequent Event
Debt Instrument [Line Items]
Debt Instrument, Repaid, Principal	104,000,000
Senior Notes | Term Loan A Due 2029 | Subsequent Event
Debt Instrument [Line Items]
Debt Instrument, Repaid, Principal	$ 36,000,000
Secured Debt | Revolving Credit Facility | Subsequent Event
Debt Instrument [Line Items]
Debt Instrument, interest rate, stated percentage	1.85%
Secured Debt | Term Loan F Notes Due 2027
Debt Instrument [Line Items]
Debt Instrument, interest rate, stated percentage		1.85%			1.85%
Debt instrument, patronage distributions, percentage		0.90%			0.90%
Debt instrument, patronage distributions, cash rebate, percentage		0.75%			0.75%
Debt instrument, effective interest rate		6.29%			6.29%		6.31%
Secured Debt | Term Loan F Notes Due 2027 | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Minimum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate					0.00%
Secured Debt | Term Loan A - due 2028 (b)
Debt Instrument [Line Items]
Debt Instrument, Issued, Principal				$ 300,000,000
Debt Instrument, interest rate, stated percentage		1.85%			1.85%
Long-term debt and lease obligation		$ 259,000,000			$ 259,000,000		$ 266,000,000
Secured Debt | Term Loan F - due 2027 (a)
Debt Instrument [Line Items]
Long-term debt and lease obligation		$ 459,000,000			$ 459,000,000		$ 471,000,000
Secured Debt | Term Loan F - due 2027 (a) | Subsequent Event
Debt Instrument [Line Items]
Debt Instrument, interest rate, stated percentage	1.85%
Secured Debt | Term Loan A Due 2029 | Subsequent Event
Debt Instrument [Line Items]
Debt Instrument, interest rate, stated percentage	1.85%
Secured Debt | Term Loan F-2 Due 2031 | Subsequent Event
Debt Instrument [Line Items]
Debt Instrument, interest rate, stated percentage	2.25%
Long-term debt and lease obligation	$ 235,000,000