Stock-Based Compensation - Additional Information (Detail) (USD $) Share data in Millions, except Per Share data, unless otherwise specified	3 Months Ended				6 Months Ended
	Apr. 03, 2015	Jan. 02, 2015	Oct. 03, 2014	Dec. 27, 2013	Jan. 02, 2015	Dec. 27, 2013	Feb. 03, 2015	May 21, 2012
Stock Based Compensation [Abstract]
Expenses on stock-based compensation		$ 18,000,000		$ 24,000,000	$ 37,000,000	$ 45,000,000
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense		7,000,000		6,000,000	12,000,000	11,000,000
Total compensation cost related to unvested stock options and ESPP rights issued		129,000,000			129,000,000
Weighted average service period					2 years 2 months 5 days
Expense related to the vesting of restricted stock unit awards		23,000,000		18,000,000	43,000,000	39,000,000
EmployeeServiceShareBasedCompensationTaxBenefitFromRestrictedStockAmortizationExpense		6,000,000		5,000,000	11,000,000	9,000,000
Unamortized fair value of all unvested restricted stock unit awards		157,000,000			157,000,000
Weighted average vesting period					1 year 8 months 12 days
Compensation cost for cash-settled stock appreciation rights		8,000,000		20,000,000	12,000,000	24,000,000
EmployeeServiceShareBasedCompensationTaxBenefitFromStockAppreciationRightsCompensationExpense		2,000,000		4,000,000	3,000,000	5,000,000
Total liability related to SARs		63,000,000			63,000,000
Options outstanding to purchase shares with exercise price below company stock price		8.8			8.8
Options outstanding to purchase shares with exercise price below company stock price, intrinsic value		564,000,000			564,000,000
Aggregate intrinsic value of options exercised under the Company's stock option plan		76,000,000		80,000,000	163,000,000	107,000,000
Grant-date fair value of the shares underlying the restricted stock awards		3,000,000			116,000,000
Forfeiture rate of restricted stock unit valuation assumption		4.30%			4.40%
Stock Appreciation Right outstanding, weighted average exercise price		$ 8.11			$ 8.11
Number of assumed SARs outstanding		0.6			0.6
Weighted average expected term of the Company's stock options		5 years 11 months 27 days		5 years 4 months 24 days	5 years 9 months 22 days	5 years
StockRepurchaseProgramAdditionalAmountAuthorized							2,000,000,000	3,000,000,000
Stock Repurchase Program Total Amount Authorized							5,000,000,000
Treasury Stock, Shares, Acquired		3.2			5.4
Treasury Stock, Value, Acquired, Cost Method		309,000,000			532,000,000
RemainingAmountForRepurchaseUnderShareRepurchaseProgram		622,000,000			622,000,000
Cash dividend	$ 0.50	$ 0.40	$ 0.40
Payments of Dividends		$ 93,000,000	$ 94,000,000		$ 187,000,000	$ 118,000,000