Summarization for Foreign Currency Forward Purchase and Sale Contracts (Detail) In Millions, unless otherwise specified	Jun. 30, 2013 Australian dollars [Member] USD ($)	Jun. 30, 2013 British pounds [Member] GBP (£)	Jun. 30, 2013 European euro [Member] EUR (€)	Jun. 30, 2013 South African rand [Member] ZAR	Jun. 30, 2013 Japanese yen [Member] JPY (¥)	Jun. 30, 2013 U.S. dollars [Member] USD ($)	Jun. 30, 2013 Other [Member] USD ($)
Derivative [Line Items]
Notional Amount in Foreign Currency, Purchase	$ 3	£ 8		103	¥ 159	$ 13	$ 1
Notional Amount in Foreign Currency, Sell	$ (2)		€ (8)		¥ (790)	$ (17)	$ (2)

Aggregate notional amount of foreign currency derivatives to purchase a foreign currency. Notional amount refers to the number of currency units specified in the foreign currency derivative contract.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1A

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5579245-113959

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Notional Amount

-URI http://asc.fasb.org/extlink&oid=6519104

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1B

-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5580258-113959

Name:	us-gaap_NotionalAmountOfForeignCurrencyDerivativePurchaseContracts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant