Debt Instrument Maturity Year

No definition available.

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- Definition

Debtor-in-Possession Financing, Line Of Credit Facility Maximum Borrowing Capacity

+ References

No definition available.

+ Details

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- Definition

Debtor-in-Possession Financing, Line of Credit Facility, Remaining Borrowing Capacity

+ References

No definition available.

+ Details

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6031897-161870

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

Reference 3: 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))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28551-108399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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Balance Type:	na
Period Type:	instant

- 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.

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(2))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

+ Details

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Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of letters of credit outstanding under debtor-in-possession financing arrangement.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of the cost of borrowed funds accounted for as interest expense for debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 6
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6036836-161870

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Topic 220
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-Section S99
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-URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ 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 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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- Definition

Number of shares of stock issued as of the balance sheet date, including shares that had been issued and were previously outstanding but which are now held in the treasury.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
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Long-Term Debt (Narrative) (Details) - USD ($) $ in Millions					3 Months Ended	4 Months Ended	9 Months Ended
	Oct. 13, 2021	Apr. 30, 2021	Nov. 25, 2020	Oct. 08, 2020	Sep. 30, 2020	Apr. 30, 2021	Sep. 30, 2021	Sep. 30, 2020	Apr. 14, 2021	Dec. 31, 2020
DIP Term Loan Facility [Member]
Debt Instrument [Line Items]
DIP, Maximum line of credit			$ 750	$ 500
First Lien Notes Due 4/1/2027 [Member]
Debt Instrument [Line Items]
Interest rate							8.00%
Maturity date							Apr. 01, 2027
Second Lien Notes Due 4/1/2026 [Member]
Debt Instrument [Line Items]
Interest rate							8.50%
Maturity date							Apr. 01, 2026
New Incremental Commitment [Member]
Debt Instrument [Line Items]
Remaining outstanding principal									$ 225
Term Loan Facility [Member]
Debt Instrument [Line Items]
Maturity date							Oct. 08, 2027
Line of credit facility maximum borrowing capacity									1,468
Term Loan Facility [Member] \| LIBOR [Member]
Debt Instrument [Line Items]
Interest rate margin							3.75%
Term Loan Facility [Member] \| Base Rate [Member]
Debt Instrument [Line Items]
Interest rate margin							2.75%
Term Loan Facility [Member] \| LIBOR Floor Rate [Member]
Debt Instrument [Line Items]
Interest rate margin							0.75%
Revolving Facility [Member]
Debt Instrument [Line Items]
Letters of credit outstanding				90
Available borrowing capacity							$ 535
Maturity date							Apr. 30, 2025
Line of credit facility maximum borrowing capacity							$ 625		$ 625
Revolving Facility [Member] \| LIBOR [Member]
Debt Instrument [Line Items]
Interest rate margin							3.50%
Revolving Facility [Member] \| Base Rate [Member]
Debt Instrument [Line Items]
Interest rate margin							2.50%
Revolving Facility [Member] \| LIBOR Floor Rate [Member]
Debt Instrument [Line Items]
Interest rate margin							0.00%
Senior Secured Notes [Member] \| Second Lien Notes Due 2030 [Member]
Debt Instrument [Line Items]
Aggregate principal amount	$ 1,000
Interest rate	6.00%
Maturity year	2030
Senior Secured Notes [Member] \| DIP-to-Exit First Lien Notes Due 10/15/2027 [Member]
Debt Instrument [Line Items]
Aggregate principal amount				$ 1,150
Interest rate				5.875%
Maturity date				Oct. 15, 2027
Senior Secured Notes [Member] \| DIP-to-Exit First Lien Notes Due 5/1/2028 [Member]
Debt Instrument [Line Items]
Aggregate principal amount			$ 1,550
Interest rate			5.00%
Maturity date			May 01, 2028
Senior Secured Notes [Member] \| Second Lien Notes Due 05/01/2029 [Member]
Debt Instrument [Line Items]
Aggregate principal amount			$ 1,000
Interest rate			6.75%
Maturity date			May 01, 2029
Senior Secured Notes [Member] \| Takeback Notes [Member]
Debt Instrument [Line Items]
Aggregate principal amount		$ 750				$ 750
Interest rate		5.875%				5.875%
Maturity date		Nov. 01, 2029
Successor [Member]
Debt Instrument [Line Items]
Remaining outstanding principal		$ 6,794				$ 6,794	$ 6,786
Successor [Member] \| Senior Notes [Member]
Debt Instrument [Line Items]
Common stock shares issued		244,401,000				244,401,000
Successor [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Remaining outstanding principal							$ 5,931
Predecessor [Member]
Debt Instrument [Line Items]
Interest expense					$ 372	$ 450		$ 1,116
Remaining outstanding principal		$ 6,794				$ 6,794				$ 16,769
Predecessor [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Remaining outstanding principal										4,964
Predecessor [Member] \| Unsecured Debt [Member]
Debt Instrument [Line Items]
Remaining outstanding principal										$ 10,949