Debt Instrument, Covenant, Equity Ratio

No definition available.

Name:	ne_DebtInstrumentCovenantEquityRatio
Namespace Prefix:	ne_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Debt Instrument, Covenant, Leverage Ratio

+ References

No definition available.

+ Details

Name:	ne_DebtInstrumentCovenantLeverageRatio
Namespace Prefix:	ne_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Debt Instrument, Covenant, Liquidity Amount

+ References

No definition available.

+ Details

Name:	ne_DebtInstrumentCovenantLiquidityAmount
Namespace Prefix:	ne_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Debt Instrument, Quarterly Margin

+ References

No definition available.

+ Details

Name:	ne_DebtInstrumentQuarterlyMargin
Namespace Prefix:	ne_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

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

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- 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

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of the required periodic payments including both interest and principal payments.

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

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=123599511&loc=d3e64711-112823

+ Details

Name:	us-gaap_DebtInstrumentPeriodicPayment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 4
-URI https://asc.fasb.org/extlink&oid=126972273&loc=d3e12355-112629

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=126972273&loc=d3e12317-112629

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585

+ Details

Name:	us-gaap_GainsLossesOnExtinguishmentOfDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3255-108585

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(f))
-URI https://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

+ Details

Name:	us-gaap_ProceedsFromLinesOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	dei_LegalEntityAxis=ne_MaerskDrillingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=ne_NewDNBCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_LineOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ne_DebtInstrumentPaymentPeriodAxis=ne_DebtInstrumentPaymentPeriodOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ne_DebtInstrumentPaymentPeriodAxis=ne_DebtInstrumentPaymentPeriodTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ne_DebtInstrumentPaymentPeriodAxis=ne_DebtInstrumentPaymentPeriodThreeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ne_DebtInstrumentInterestAccrualPeriodAxis=ne_DebtInstrumentInterestAccrualPeriodTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ne_DebtInstrumentInterestAccrualPeriodAxis=ne_DebtInstrumentInterestAccrualPeriodThreeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Debt - DNB Credit Facility and New DNB Credit Facility (Details)		1 Months Ended	11 Months Ended	12 Months Ended
	Dec. 22, 2022 USD ($)	Feb. 05, 2021 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2020 USD ($)	Oct. 03, 2022 USD ($)
Debt Instrument [Line Items]
Borrowings on credit facilities		$ 177,500,000	$ 40,000,000	$ 220,000,000	$ 210,000,000
Gain (loss) on extinguishment of debt, net		$ 0	$ 0	8,912,000	$ (17,254,000)
Maersk Drilling
Debt Instrument [Line Items]
Debt covenant, liquidity amount (no less than)						$ 200,000,000
Debt covenant, leverage ratio (no greater than)						4.75
New DNB Credit Facility matures December 2025 \| Line of Credit
Debt Instrument [Line Items]
Borrowings on credit facilities	$ 350,000,000
Gain (loss) on extinguishment of debt, net				$ 4,300,000
Debt covenant, liquidity amount (no less than)	200,000,000
New DNB Credit Facility matures December 2025 \| Line of Credit \| Maersk Drilling
Debt Instrument [Line Items]
Debt covenant, liquidity amount (no less than)	$ 50,000,000
Debt covenant, leverage ratio (no greater than)	4.75
Debt covenant, equity ratio	35.00%
New DNB Credit Facility matures December 2025 \| Line of Credit \| Debt Instrument, Payment Period One
Debt Instrument [Line Items]
Debt, periodic payment	$ 2,500,000
New DNB Credit Facility matures December 2025 \| Line of Credit \| Second Year
Debt Instrument [Line Items]
Debt, periodic payment	7,500,000
New DNB Credit Facility matures December 2025 \| Line of Credit \| Third Year
Debt Instrument [Line Items]
Debt, periodic payment	$ 12,500,000
New DNB Credit Facility matures December 2025 \| Line of Credit \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Debt Instrument [Line Items]
Debt, basis spread on variable rate	3.50%
New DNB Credit Facility matures December 2025 \| Line of Credit \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate \| Months 13 to 24 after the Utilization Date
Debt Instrument [Line Items]
Debt, basis spread on variable rate	4.10%
Debt quarterly margin	0.15%
New DNB Credit Facility matures December 2025 \| Line of Credit \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate \| Months 25 to 36 after the Utilization Date
Debt Instrument [Line Items]
Debt, basis spread on variable rate	5.10%
Debt quarterly margin	0.25%