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Fresh Start Accounting - Narrative (Details) $ in Millions	Apr. 30, 2021 USD ($)
Reorganization, Chapter 11 [Line Items]
Enterprise Value	$ 1,860.0
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	2.81%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets	6.03%
Minimum [Member]
Reorganization, Chapter 11 [Line Items]
Enterprise Value	$ 1,860.0
Maximum [Member]
Reorganization, Chapter 11 [Line Items]
Enterprise Value	$ 3,145.0

X

- Definition

Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
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- Definition

Weighted average rate of return on plan assets, reflecting average rate of earnings expected on existing plan assets and expected contributions, used to determine net periodic benefit cost of defined benefit plan.

+ References

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Amount attributed to the reconstituted entity, as well as the expected net realizable value of those assets that will be disposed before reconstitution occurs.

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