Face (par) amount of debt instrument at time of issuance.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
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- Definition

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13433-108611

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
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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.

+ References

No definition available.

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- Definition

Debt Instrument, Cash Interest Rate, Stated Percentage

+ References

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- Definition

Debt Instrument, PIK Interest Rate, Stated Percentage

+ References

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Financial Instruments and Risk Management (as restated) - Fair Value and Carrying Value of Debt (Details) - USD ($)	Dec. 31, 2020	Mar. 02, 2020	Jan. 31, 2020	Dec. 31, 2019	Dec. 22, 2017	Nov. 30, 2016
Revolving Credit Facility \| Term Loan Due 2027
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Stated interest rate		1.00%
Aggregate principal amount		$ 2,200,000,000.0
Revolving Credit Facility \| Term Loan Due 2023
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Aggregate principal amount					$ 325,000,000.0	$ 2,320,000,000.0
Notes Payable to Banks \| 9.250% Notes due 2024
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Stated interest rate	9.25%		9.25%
Aggregate principal amount			$ 750,000,000.0
Notes Payable to Banks \| 10.00% Notes due 2024
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Stated interest rate				10.00%
Aggregate principal amount			120,000,000.0
Senior Notes \| 12.00%/13.00% Senior PIK Toggle Notes due 2022
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash interest rate, stated percentage	12.00%			12.00%
PIK interest rate, stated percentage	13.00%			13.00%
Aggregate principal amount			$ 500,000,000.0
Fair Value \| Revolving Credit Facility \| Term Loan Due 2027
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value disclosure	$ 2,169,900,000			$ 0
Fair Value \| Revolving Credit Facility \| ABL Revolving Credit Facility
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value disclosure	0			145,200,000
Fair Value \| Revolving Credit Facility \| Term Loan Due 2023
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value disclosure	0			2,064,800,000
Fair Value \| Notes Payable to Banks \| 9.250% Notes due 2024
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value disclosure	0			805,300,000
Fair Value \| Notes Payable to Banks \| 10.00% Notes due 2024
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value disclosure	0			127,500,000
Fair Value \| Senior Notes \| 12.00%/13.00% Senior PIK Toggle Notes due 2022
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value disclosure	0			517,500,000
Par Value \| Revolving Credit Facility \| Term Loan Due 2027
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value disclosure	2,183,500,000			0
Par Value \| Revolving Credit Facility \| ABL Revolving Credit Facility
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value disclosure	0			145,200,000
Par Value \| Revolving Credit Facility \| Term Loan Due 2023
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value disclosure	0			2,070,000,000.0
Par Value \| Notes Payable to Banks \| 9.250% Notes due 2024
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value disclosure	0			750,000,000.0
Par Value \| Notes Payable to Banks \| 10.00% Notes due 2024
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value disclosure	$ 0			120,000,000.0
Stated interest rate	10.00%
Par Value \| Senior Notes \| 12.00%/13.00% Senior PIK Toggle Notes due 2022
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value disclosure	$ 0			$ 500,000,000.0