Subsequent Events (Details) (USD $) In Millions, unless otherwise specified	1 Months Ended	3 Months Ended	1 Months Ended
Oct. 31, 2013 Campus	Sep. 30, 2013 Subsequent Event [Member]	Oct. 31, 2013 Subsequent Event [Member] Minimum [Member]	Oct. 31, 2013 Subsequent Event [Member] Maximum [Member]
Subsequent Events (Textual) [Abstract]
Number of campuses to be closed	20
Restructuring charges			$ 45	$ 55
Net lease and related facility costs			30	40
Severance and other employee separation costs	15
Reduce cash flow from operating activities		$ 10

Amount of other expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses associated with a discontinued operation or an asset retirement obligation.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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- Definition

Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.

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