Bid price for remaining outstanding shares of investee.

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The book value of the previously held equity interest in the acquiree.

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- Definition

The total cost of the acquired entity acquired by a subsidiary including the cash paid to shareholders of acquired entities, fair value of debt and equity securities issued to shareholders of acquired entities, the fair value of the liabilities assumed, and direct costs of the acquisition.

+ References

No definition available.

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- Definition

Value of remaining equity interest acquired by the acquirer.

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Fair value of non-controlling interests of the acquiree.

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Fair Value of previously held equity interest in the acquiree.

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- Definition

Number of premium jack-up rigs operated by Scorpion.

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- Definition

Percentage of ownership who accepted the offer of stock purchase.

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- Definition

Refers to the percentage of remeasured previously held equity interest to its fair value.

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No definition available.

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- Definition

Amount of cash paid to acquire the entity.

+ References

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-Paragraph 68

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- Definition

The total cost of the acquired entity including the cash paid to shareholders of acquired entities, fair value of debt and equity securities issued to shareholders of acquired entities, the fair value of the liabilities assumed, and direct costs of the acquisition.

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- Definition

Percentage of voting equity interests acquired in the business combination.

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The amount of acquisition cost of a business combination allocated to assets acquired.

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The total purchase price of the acquired entity. This includes cash paid to equity interest holders of the acquired entity, fair value of debt and equity securities issued to equity holders of the acquired entity, and transaction costs paid to third parties to consummate the acquisition.

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- Definition

The amount of acquisition cost of a business combination allocated to current assets.

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The amount of acquisition cost of a business combination allocated to current liabilities of the acquired entity.

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- Definition

Gross amount of acquisition cost of a business combination allocated to noncurrent deferred tax liabilities.

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No definition available.

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- Definition

Amount of goodwill arising from a business combination, which is the excess of the cost of the acquired entity over the amounts assigned to assets acquired and liabilities assumed.

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-Paragraph 52

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Amount of acquisition cost of a business combination allocated to assets, excluding financial assets and goodwill, lacking physical substance.

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- Definition

The amount of acquisition cost of a business combination allocated to liabilities assumed.

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- Definition

The amount of acquisition cost of a business combination allocated to property, plant and equipment to be used in ongoing operations.

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- Definition

For an acquired entity, price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

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- Definition

In a business combination in which the amount of net identifiable assets acquired and liabilities assumed exceeds the aggregate consideration transferred or to be transferred (as defined), this element represents the amount of gain recognized by the entity.

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Business Acquisitions (Details) In Millions, except Per Share data, unless otherwise specified	12 Months Ended				6 Months Ended	12 Months Ended					12 Months Ended
	Dec. 31, 2012 USD ($)	Dec. 31, 2011 USD ($)	Dec. 31, 2010 USD ($)	Jan. 31, 2011 USD ($)	Dec. 31, 2010 Scorpion [Member] USD ($)	Dec. 31, 2010 Scorpion [Member] USD ($)	Jul. 19, 2010 Scorpion [Member]	Jun. 04, 2010 Scorpion [Member] NOK	May 28, 2010 Scorpion [Member] USD ($)	Apr. 30, 2010 Scorpion [Member] NOK	Dec. 31, 2010 Gray [Member] USD ($)	Dec. 31, 2010 RIS [Member] USD ($)	Aug. 31, 2010 RIS [Member] USD ($)
Business Acquisitions [Abstract]
Purchase price of Universal Wireline				$ 26
Business Acquisition [Line Items]
Equity interest acquired (in hundredths)					100.00%	100.00%	98.80%		50.10%	40.00%
Share price (in NOK per share)										36.00
Number of premium jack up rigs operated by Scorpion										7
Bid price for remaining outstanding shares (in NOK per share)								40.50
Percentage of ownership who accepted the offer of stock purchase (in hundredths)							48.70%
Acquisition consideration [Abstract]
Cash					57	57
Fair Value of previously held 40% equity interest					226	226
Fair Value of Non Controlling Interests					282	282
Total acquisition consideration					565	565
Percentage of previously held equity interest to its fair value (in hundredths)									40.00%
Book value of the previously held 40% equity interest									115
Acquisition of remaining shares in acquiree					292
Purchase price of acquired entity			735		565	565					161	9	9
Assets [Abstract]
Intangible assets			38		0	0					36	2
Goodwill			85		0	0					80	5
Fixed assets			1,278		1,234	1,234					44	0
Receivables and other current assets			246		210	210					33	3
Total assets			1,647		1,444	1,444					193	10
Liabilities [Abstract]
Deferred tax			26		0	0					25	0
Payables and other current liabilities			831		823	823					8	1
Total liabilities			857		823	823					33	1
Purchase Price			735		565	565					161	9	9
Gain on bargain purchase	$ 0	$ 0	$ 56			$ 56					$ 0	$ 0