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New Accounting Pronouncements (Details) - Forecast Adjustment - ASU-Leases $ in Millions	Jun. 30, 2017 USD ($)
Minimum
Recently issued accounting standards
Aggregate lease liability	$ 50
Right-to-use asset	50
Maximum
Recently issued accounting standards
Aggregate lease liability	70
Right-to-use asset	$ 70

X

- Definition

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

+ References

No definition available.

+ Details

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Namespace Prefix:	rig_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Amount of lessee's right to use underlying asset under operating lease.

+ References

No definition available.

+ Details

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Namespace Prefix:	rig_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- 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

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- Details

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