Amount of cash paid to acquire the entity.

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141

-Paragraph 51

-Subparagraph d

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141R

-Paragraph 68

-Subparagraph f(1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Name:	us-gaap_BusinessAcquisitionCostOfAcquiredEntityCashPaid
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Basis of Presentation Narrative (Detail) (USD $)			9 Months Ended
Basis of Presentation Narrative (Detail) (USD $)	Feb. 28, 2011 King [Member]	Jan. 31, 2011 King [Member]	Oct. 02, 2011 King US [Member]	Oct. 02, 2011 King International [Member]
Basis of Presentation [Line Items]
Acquisition purchase price paid		$ 3,300,000,000
Percent of outstanding shares initially acquired		92.50%
Acquisition price for remaining outstanding shares	$ 300,000,000
Time period of King's operations included in parent's financial statements			P8M	P7M