Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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

Debt - DSF Credit Facility (Details) $ in Millions	Oct. 03, 2022 USD ($)	Dec. 31, 2022 USD ($)
Maersk Drilling
Debt Instrument [Line Items]
Debt covenant, leverage ratio (no greater than)	4.75
Debt covenant, liquidity amount (no less than)	$ 200.0
Debt covenant, minimum equity ratio	0.35
DSF Credit Facility matures December 2023 \| Term Loans
Debt Instrument [Line Items]
Long-term debt		$ 149.7
Minimum \| DSF Credit Facility matures December 2023 \| Term Loans \| LIBOR
Debt Instrument [Line Items]
Debt, basis spread on variable rate	1.80%
Maximum \| DSF Credit Facility matures December 2023 \| Term Loans \| LIBOR
Debt Instrument [Line Items]
Debt, basis spread on variable rate	2.90%