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Drilling units (Tables)

6 Months Ended

Jun. 30, 2021

Property, Plant and Equipment [Abstract]

Schedule of drilling units

The following table summarizes the movement for the six months ended June 30, 2020:

(In $ millions)						Cost						Accumulated depreciation						Net book value
As at January 1, 2020						7,048						(647)						6,401
Additions						85						—						85
Depreciation						—						(179)						(179)
Impairment						(1,230)						—						(1,230)
As at June 30, 2020						5,903						(826)						5,077

The following table summarizes the movement for the six months ended June 30, 2021:

(In $ millions)						Cost						Accumulated depreciation						Net book value
As at January 1, 2021						3,108						(988)						2,120
Additions						39						—						39
Depreciation						—						(80)						(80)
Impairment						(152)						—						(152)
As at June 30, 2021						2,995						(1,068)						1,927

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- References

No definition available.

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- Definition

Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.

+ 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(13))
-URI http://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 360
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

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