Debt Instrument, Interest Rate, Basis Spread on Variable Rate, Payment-In-Kind Portion

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- Definition

Line Of Credit Facility, Remaining Borrowing Capacity And Cash And Cash Equivalents

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Net Debt

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Plan Of Reorganization New Financing Raised

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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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- Definition

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

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Present value of lessee's discounted obligation for lease payments from finance lease.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

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The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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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.

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Amount of cash and cash equivalents restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Chapter 11 - Summary, Background and Objectives (Details) - USD ($) $ in Millions	Feb. 22, 2022	Jan. 20, 2022	Dec. 31, 2021	Nov. 30, 2021	Nov. 02, 2021	Feb. 10, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Jul. 02, 2018
Reorganization, Chapter 11 [Line Items]
Long-term debt			$ 5,662			$ 6,200	$ 5,662
Cash and restricted cash			535				659	$ 1,305	$ 1,632
Cash and cash equivalents			312				491
Restricted cash			$ 223				168
Additional interest on payment-in-kind interest			2.00%
Lease liability			$ 503			$ 1,100	426
SeaMex
Reorganization, Chapter 11 [Line Items]
Equity interest, acquisition of residual (in percent)				100.00%	50.00%
NSNCo \| SeaMex
Reorganization, Chapter 11 [Line Items]
Equity interest, acquisition of residual (in percent)					100.00%
NSNCo
Reorganization, Chapter 11 [Line Items]
Noncontrolling interest, ownership percentage by parent						100.00%
Credit Facility Maturing 2027
Reorganization, Chapter 11 [Line Items]
Long-term debt							$ 5,662
New First Lien Term Loan
Reorganization, Chapter 11 [Line Items]
Debt instrument, interest rate (as percent)						7.00%
Senior Secured Notes Member \| Secured Debt
Reorganization, Chapter 11 [Line Items]
Long-term debt						$ 500
Debt instrument, interest rate (as percent)										12.00%
Subsequent Event
Reorganization, Chapter 11 [Line Items]
Plan of reorganization, new financing raised	$ 350
Long-term debt	908
Cash and restricted cash	486
Cash and cash equivalents	335
Restricted cash	151
Undrawn amount on revolving credit facility	125
Liquidty	460
Net debt	422
Subsequent Event \| SeaMex
Reorganization, Chapter 11 [Line Items]
Equity interest, acquisition of residual (in percent)		100.00%
Subsequent Event \| NSNCo
Reorganization, Chapter 11 [Line Items]
Noncontrolling interest, ownership percentage by noncontrolling owners		35.00%
Subsequent Event \| NSNCo \| NSNCo Noteholders
Reorganization, Chapter 11 [Line Items]
Noncontrolling interest, ownership percentage by parent		65.00%
Subsequent Event \| Credit Facility Maturing 2027
Reorganization, Chapter 11 [Line Items]
Long-term debt	683
Subsequent Event \| New First Lien Term Loan
Reorganization, Chapter 11 [Line Items]
Long-term debt	175
Subsequent Event \| Hemen Convertible Bond
Reorganization, Chapter 11 [Line Items]
Long-term debt	$ 50