Equity Method Investments - 2 (Details) (Tera Probe [Member], USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended
Mar. 05, 2015	Feb. 27, 2014	Mar. 05, 2015	Feb. 27, 2014
Tera Probe [Member]
Related Party Transaction [Line Items]
Related party purchases from Tera Probe	$ 22	$ 31	$ 47	$ 64

Purchases during the period (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

No definition available.

Name:	us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration