Common Stock, Capital Shares Reserved for Future Issuance, Percent

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- Definition

Debtor-in-Possession Financing, Pro Rata Rate

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- Definition

Debtor Reorganization Items, Loss On Fresh-Start Adjustments

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- Definition

Line of Credit Facility, Prepayment Fee Percentage

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- Definition

The amount of contractual interest expense on prepetition liabilities not included in the statement of operations.

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- Definition

Amount debtor-in-possession financing arranged (but not necessarily all borrowed).

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- Definition

Amount of debtor-in-possession borrowings outstanding.

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- Definition

Amount of reorganization items related to debtor-in-possession facility financing costs.

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- Definition

Amount of net gain (loss) on settlement of other claims for entities in bankruptcy, reported as a reorganization item.

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Amount of reorganization items related to legal and advisory professional fees related to entities in bankruptcy.

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Amount of gain (loss) on rejection of leases and other executory contracts, reported as a reorganization item.

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Amount of expense (income) related to reorganization items classified as other.

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Amount of write-off of debt issuance costs and debt discounts related to prepetition debt obligations.

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- Definition

The percentage points added to the reference rate to compute the variable rate on the interest rate derivative.

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- Definition

Amount of increase (decrease) in liabilities subject to compromise.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Total amount of reorganization items.

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Chapter 11 Cases and Dutch Scheme Proceedings, Ability to Continue as a Going Concern and Other Related Matters (Details) - USD ($) $ in Millions		1 Months Ended	2 Months Ended	3 Months Ended	7 Months Ended	9 Months Ended
	Aug. 11, 2023	Aug. 11, 2023	Sep. 30, 2023	Sep. 30, 2022	Aug. 11, 2023	Sep. 30, 2022	Aug. 12, 2023	Aug. 10, 2023
Reorganization, Chapter 11 [Line Items]
DIP Facility							$ 0.0
Gain on settlement of liabilities subject to compromise (non-cash)		$ 1,570.5	$ 0.0		$ (1,570.5)
Fresh start valuation adjustments (non-cash)		686.7	0.0		(686.7)
Professional fees (cash)		(35.2)	(8.0)		(38.7)
Unamortized debt issuance costs (non-cash)		0.0	0.0		124.6
DIP premium (non-cash)		(32.6)	0.0		(384.4)
Debt make-whole premium (cash)		0.0	0.0		91.0
Lease rejection damage claim (cash)		(3.8)	0.0		(3.8)
Other (non-cash)		(0.5)	0.0		0.6
Total Reorganization items, net		2,250.3	$ (8.0)	$ 0.0	1,614.1	$ 0.0
Contractual interest in excess of recorded interest		$ 50.6			$ 67.5
Management Incentive Plan
Reorganization, Chapter 11 [Line Items]
Percent of shares reserved	6.00%	6.00%			6.00%
Holders of First Lien Claims
Reorganization, Chapter 11 [Line Items]
Pro rata share	98.00%	98.00%			98.00%
DIP Facility	$ 1,250.0	$ 1,250.0			$ 1,250.0			$ 1,250.0
Holders of Second Lien Notes Claims
Reorganization, Chapter 11 [Line Items]
Pro rata share	2.00%	2.00%			2.00%
Holders of 2024 Stub Unsecured Notes Claims
Reorganization, Chapter 11 [Line Items]
DIP Facility								$ 3.5
Debtor-in-Possession Facility, Exit Credit Agreement
Reorganization, Chapter 11 [Line Items]
DIP Facility	$ 1,250.0	$ 1,250.0			$ 1,250.0
New credit agreement	$ 1,250.0	$ 1,250.0			$ 1,250.0
Debtor-in-Possession Facility, Exit Credit Agreement \| Secured Overnight Financing Rate (SOFR)
Reorganization, Chapter 11 [Line Items]
Variable rate	7.50%	7.50%			7.50%
Debtor-in-Possession Facility, Exit Credit Agreement \| Base Rate [Member]
Reorganization, Chapter 11 [Line Items]
Variable rate	6.50%	6.50%			6.50%
Debtor-in-Possession Facility, Exit Credit Agreement \| Minimum
Reorganization, Chapter 11 [Line Items]
Prepayment fee percentage	1.00%
Debtor-in-Possession Facility, Exit Credit Agreement \| Maximum
Reorganization, Chapter 11 [Line Items]
Prepayment fee percentage	5.00%