Fresh Start Accounting - Successor’s Equity (Details) $ in Millions	Feb. 09, 2021 USD ($)
Reorganizations [Abstract]
Enterprise Value	$ 4,851
Plus: Cash and cash equivalents	48
Less: Fair value of debt	(1,313)
Successor equity value	3,586
Restricted cash	$ 8

Enterprise Value

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- Definition

Amount of fresh-start adjustment to cash and cash equivalents.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 852
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=120604989&loc=SL2890621-112765

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 852
-SubTopic 10
-Section 55
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=84165509&loc=d3e56426-112766

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Amount of fresh-start adjustment to current restricted cash and cash equivalents.

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- Definition

Total long-term debt at the balance sheet date after fresh-start adjustments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 852
-SubTopic 10
-Section 55
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=84165509&loc=d3e56426-112766

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 852
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=120604989&loc=SL2890621-112765

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- Definition

Total stockholders' equity at the balance sheet date after fresh-start adjustments.

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- References

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