Stockholders' Equity (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Jun. 30, 2012
2012StockRepurchasePlan [Member]
Class of Stock [Line Items]
Stock repurchase program, authorized value	$ 200
RetiredPlan [Member]
Class of Stock [Line Items]
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 6

The remaining repurchase amount authorized by an entity's Board of Directors under a stock repurchase plan.

No definition available.

Name:	us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration