Stock Repurchases (Narrative) (Details) (USD $) In Billions, unless otherwise specified	12 Months Ended
Mar. 29, 2013
Stock repurchase program, remaining authorized repurchase amount	$ 1.2
Stock Repurchase Program Authorized January 25, 2012 [Member]
Authorization to repurchase common stock	$ 1

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