Earnings Per Share and Stock Issuances-Additional Information (Details) - USD ($) $ in Millions	Aug. 31, 2015	Mar. 25, 2015
Earnings Per Share, Basic and Diluted [Abstract]
Stock repurchase program, remaining authorized repurchase amount	$ 43
Stock Repurchase Program, Authorized Amount	$ 400	$ 600

Amount remaining of a stock repurchase plan authorized.

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant