Represents the percentage of shares of entity to be acquired for which a cash voluntary offer has been submitted.

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- Definition

The contractual rate at which a foreign currency can be purchased or sold under the terms of a foreign currency derivative contract.

+ Details

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- Definition

Fair value as of the balance sheet date of derivative instrument not designated as hedging instrument and classified as an asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 107

-Paragraph 10

+ Details

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- Definition

Fair value as of the balance sheet date of derivative instrument not designated as hedging instrument and classified as a liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 107

-Paragraph 10

+ Details

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- 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.

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- Definition

Amount of gain (loss) recognized in earnings in the period from the increase (decrease) in fair value of foreign currency derivatives not designated as hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 44

+ Details

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Derivatives and Hedging (Details 4) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended		1 Months Ended	9 Months Ended
	Sep. 30, 2011 Derivative not designated as hedging instruments Forward exchange contract USD ($)	Sep. 30, 2011 Derivative not designated as hedging instruments Forward exchange contract USD ($)	Sep. 30, 2011 Derivative not designated as hedging instruments Forward exchange contract NOK	Aug. 31, 2011 Aker Drilling	Sep. 30, 2011 Aker Drilling
Derivative instruments
Percentage of outstanding shares for which acquisition is pending				100.00%	100.00%
Aggregate notional amount, pay	$ 1,120	$ 1,120
Aggregate notional amount, receive			6,051
Exchange rate	5.4005	5.4005
Loss recognized during the period	$ 78	$ 78