Carrying amount as of the balance sheet date of obligations due all related parties.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(k)(1))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.15(3),(4))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.17)
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph k
-Subparagraph 1
-Article 4

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 15
-Subparagraph 3, 4
-Article 9

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 17
-Article 7

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

Debt - $109.5 million Vendor Financing Loan Agreement (Details) - USD ($) $ in Millions		1 Months Ended	12 Months Ended
	May. 17, 2013	May. 31, 2013	Dec. 31, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Amount borrowed from related parties			$ 306.0	$ 346.5
Seadrill \| Vendor Financing Loan
Debt Instrument [Line Items]
Amount borrowed from related parties			$ 109.5	$ 109.5
Seadrill \| Vendor Financing Loan \| $109.5 facility
Debt Instrument [Line Items]
Amount borrowed from related parties	$ 109.5	$ 109.5
Variable rate basis on debt issuance	LIBOR
Interest rate added to LIBOR	5.00%
Seadrill \| Vendor Financing Loan \| $109.5 facility \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Interest rate added to LIBOR		5.00%
Revolving Credit Facility \| Seadrill \| $109.5 facility \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Variable rate basis on debt issuance			LIBOR