Reorganization and Chapter 11 Proceedings - Additional Information (Details)												3 Months Ended	12 Months Ended
	Mar. 17, 2021 USD ($)	Mar. 09, 2021 USD ($) $ / shares	Mar. 08, 2021 $ / shares	Feb. 15, 2021 USD ($)	Jan. 11, 2021 USD ($) $ / shares	Oct. 22, 2020 USD ($)	Oct. 09, 2020 USD ($)	Oct. 06, 2020	Sep. 04, 2020	Jun. 12, 2020 USD ($)	Sep. 27, 2018 USD ($)	Mar. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Apr. 26, 2021 USD ($) Claim	Sep. 20, 2020	Jun. 12, 2020 EUR (€)	Sep. 27, 2018 EUR (€)
Reorganization And Chapter11 Proceedings [Line Items]
Professional and filing fees by debtor												$ 84,000,000
Payment of debt issuance costs											$ 37,000,000
Write-off of pre-petition unamortized debt issuance costs													$ 6,000,000
Line of credit, interest rate terms												Following commencement of the Chapter 11 Cases, the contractual non-default rate of interest that is applicable under Senior Secured Credit Facilities is either (a) in the case of dollar denominated borrowings, base rate determined by reference to the highest of (1) the rate of interest last quoted by The Wall Street Journal as the “prime rate” in the United States, (2) the greater of the federal funds effective rate and the overnight bank funding rate, plus 0.5% and (3) the one month adjusted LIBOR rate, plus 1% per annum (“ABR”), (b) in the case of borrowings denominated in certain permitted foreign currencies other than dollars or euros, an adjusted LIBOR rate (“LIBOR”) (which shall not be less than zero), or (c) in the case of borrowings denominated in euros, an adjusted EURIBOR rate (“EURIBOR”) (which shall not be less than zero), in each case, plus an applicable margin.
Subsequent Event
Reorganization And Chapter11 Proceedings [Line Items]
Number of proofs of claim filed | Claim														2,487
Unsecured claims amount														$ 146,000,000,000
Senior Secured Credit Facilities | Federal Funds Effective Rate and Overnight Bank Funding Rate
Reorganization And Chapter11 Proceedings [Line Items]
Debt instrument applicable margin rate								0.50%
Senior Secured Credit Facilities | LIBOR Loans
Reorganization And Chapter11 Proceedings [Line Items]
Debt instrument applicable margin rate								1.00%
RSA
Reorganization And Chapter11 Proceedings [Line Items]
Aggregate outstanding principal amount of loan percentage															61.00%
2020 Amended Credit Agreement | Senior Secured Credit Facilities
Reorganization And Chapter11 Proceedings [Line Items]
Debt instrument applicable margin rate									0.25%
Maximum
Reorganization And Chapter11 Proceedings [Line Items]
Professional and filing fees by debtor		$ 25,000,000
Term Loan Facility
Reorganization And Chapter11 Proceedings [Line Items]
Debtor-in-possession financing, committed amount upon emergence					$ 1,250,000,000
Revolving Credit Facility
Reorganization And Chapter11 Proceedings [Line Items]
Debtor-in-possession financing, committed amount upon emergence					$ 300,000,000
Payment of debt issuance costs											6,000,000
Revolving Credit Facility | Credit Agreement | Senior Secured Credit Facilities
Reorganization And Chapter11 Proceedings [Line Items]
Line of credit, term										5 years
Line of credit, maximum borrowing capacity | €																€ 430,000,000
Term B Facility | Senior Secured Credit Facilities | ABR Loans
Reorganization And Chapter11 Proceedings [Line Items]
Debt instrument applicable margin rate								2.50%
Term B Facility | Senior Secured Credit Facilities | EURIBOR Loans
Reorganization And Chapter11 Proceedings [Line Items]
Debt instrument applicable margin rate										3.75%
Term B Facility | Credit Agreement | Senior Secured Credit Facilities
Reorganization And Chapter11 Proceedings [Line Items]
Line of credit, term										7 years
Line of credit, maximum borrowing capacity										$ 425,000,000						375,000,000
Term B Facility | 2020 Amended Credit Agreement | Senior Secured Credit Facilities
Reorganization And Chapter11 Proceedings [Line Items]
Debt instrument applicable margin rate										0.75%
Term A Facility | Credit Agreement | Senior Secured Credit Facilities
Reorganization And Chapter11 Proceedings [Line Items]
Line of credit, term										5 years
Line of credit, maximum borrowing capacity | €																€ 330,000,000
Term A Facility | 2020 Amended Credit Agreement | Senior Secured Credit Facilities
Reorganization And Chapter11 Proceedings [Line Items]
Debt instrument applicable margin rate										0.25%
5.125% Senior Notes Due 2026
Reorganization And Chapter11 Proceedings [Line Items]
Senior notes											$ 410,000,000	$ 412,000,000	$ 429,000,000				€ 350,000,000
Debt instrument, annual fixed interest rate											5.125%						5.125%
Debt instrument maturity date											Oct. 15, 2026
Stalking Horse Bidder and AMP U.S. Holdings, LLC
Reorganization And Chapter11 Proceedings [Line Items]
Winning bid selected												$ 2,100,000,000
Stalking Horse Bidder
Reorganization And Chapter11 Proceedings [Line Items]
Bankruptcy proceedings, date petition for bankruptcy Filed					Jan. 11, 2021
Termination payment					$ 63,000,000
Reimbursement payment expense					$ 15,700,000
CO Group | PSA
Reorganization And Chapter11 Proceedings [Line Items]
Common stock exchange rate for cancellation per share | $ / shares					$ 6.25
Professional and filing fees by debtor				$ 25,000,000
Estimated professional and filing fees by debtor				$ 82,000,000
CO Group | Series A Preferred Stock
Reorganization And Chapter11 Proceedings [Line Items]
Equity method investment aggregate amount in cash		668,800,000
Equity method investment maximum aggregate value		$ 632,000,000			$ 632,000,000
Conversion price | $ / shares		$ 5.25	$ 3.50
CO Group | Series A Preferred Stock | Centerbridge and Oaktree
Reorganization And Chapter11 Proceedings [Line Items]
Equity method investment aggregate amount in cash					$ 668,800,000
DIP Agent and DIP Lenders | DIP Term Loan Facility
Reorganization And Chapter11 Proceedings [Line Items]
Debtor-in-possession, date of approval by Bankruptcy court								Oct. 06, 2020
Principal amount to be funded						$ 100,000,000	$ 100,000,000
Debtor-in-possession financing maturity date	Apr. 30, 2021							Mar. 31, 2021
Debtor-in-possession financing extensions description												The original maturity date of the DIP Term Loan Facility was the earlier to occur of (a) March 31, 2021 (the “Scheduled Maturity Date”); provided, however, that upon the Company’s written request such Scheduled Maturity Date can be extended by three separate one-month extensions subject to (i) the payment of an extension fee to the Lenders equal to 0.50% of the principal amount of the Loans outstanding at the time of such extension, (ii) no default or Event of Default (as defined in the DIP Credit Agreement) existing at the time of such extension and (iii) accuracy of the representations and warranties in all material respects at the time of such extension and after giving effect thereto; and (b) the effective date of a plan of reorganization; and certain other events under the DIP Credit Agreement. On March 17, 2021, the Company prepaid $100 million that was previously outstanding under the DIP Credit Agreement, and on March 31, 2021 the Company exercised its first extension option and extended the maturity date for the loans remaining outstanding under the DIP Credit Agreement to April 30, 2021.
Principal amount of loans outstanding percentage								0.50%
Debtor-in-possession financing prepaid outstanding loan	$ 100,000,000
Debtor-in-possession interest rate description												Following the exercise by the Company of its initial maturity date extension option, the outstanding principal amount under the DIP Term Loan Facility bears interest at a rate equal to LIBOR (subject to a 1.00% LIBOR floor) plus 5.50% per annum payable every 30 days in arrears. On the Closing Date, the Company paid 1.00% in commitment fees on the total commitment plus 2.00% in fees in the form of original issue discount on the initial $100 million borrowing. On the Delayed Draw Borrowing Date, the Company paid 2.00% in fees in the form of original issue discount on the $100 million delayed draw loan. Upon an event of default, all outstanding amounts under the DIP Credit Agreement will bear interest at a rate equal to the applicable interest rate plus an additional 2.00% per annum and be payable on demand.
Debtor-in-possession financing,floor rate												1.00%
Debtor-in-possession financing,LIBOR rate												5.50%
Debtor-in-possession financing commitment fees percentage												1.00%
Debtor-in-possession financing commitment fees issue discount on initial borrowing percentage							2.00%
Initial draw of principal amount borrowed							$ 100,000,000
Debtor-in-possession financing, commitment fees issue discount on delayed draw loan percentage						2.00%
Delayed draw of principal amount borrowed						$ 100,000,000
Debtor-in-possession financing,additional interest rate												2.00%
DIP Agent and DIP Lenders | Maximum | DIP Term Loan Facility
Reorganization And Chapter11 Proceedings [Line Items]
Principal amount to be funded							$ 200,000,000