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FINANCING ARRANGEMENTS - 2022 Exchange (Details) - USD ($)		1 Months Ended	3 Months Ended		5 Months Ended	6 Months Ended
	Apr. 08, 2025	Apr. 30, 2025	Jun. 30, 2025	Jun. 30, 2024	May 31, 2024	Jun. 30, 2025	Jun. 30, 2024	Jul. 31, 2025	Jul. 30, 2025	Jul. 28, 2025	Sep. 30, 2022
Extinguishment of Debt [Line Items]
Gain on extinguishment of debt			$ 178,000,000	$ 12,000,000		$ 178,000,000	$ 23,000,000
Unamortized premiums, discounts and issuance costs			(291,000,000)			(291,000,000)
Unsecured Notes
Extinguishment of Debt [Line Items]
Repurchased debt, aggregate principal amount					$ 555,000,000
Gain on extinguishment of debt					$ 23,000,000
Unsecured Notes | Senior Notes, 9.25%, Due August 2026 | Subsequent Event
Extinguishment of Debt [Line Items]
Aggregate principal amount issued									$ 300,000,000	$ 602,000,000
Stated interest rate on debt (as a percent)								9.25%		9.25%
Unsecured Notes | Exchange Offer
Extinguishment of Debt [Line Items]
Repurchased debt, aggregate principal amount											$ 5,594,000,000
Secured Notes
Extinguishment of Debt [Line Items]
Gain on extinguishment of debt		$ 191,000,000				(25,000,000)
Secured Notes | 9.00% Intermediate Holdco Senior Notes, Due January 2028
Extinguishment of Debt [Line Items]
Stated interest rate on debt (as a percent)	9.00%
Gain on extinguishment of debt	$ 226,000,000
Secured Notes | Exchange Offer
Extinguishment of Debt [Line Items]
Aggregate principal amount issued											3,125,000,000
Reduction of outstanding principal											$ 2,469,000,000
Debt instrument, premium			$ 868,000,000			868,000,000
Contractual interest paid						184,000,000	167,000,000
Amortization of debt premium						$ 164,000,000	$ 147,000,000

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