Pension and Other Benefit Programs - Estimated Future Benefit Payments (Detail) (USD $) In Millions, unless otherwise specified	Sep. 28, 2013
Pension Plans
Defined Benefit Plan Disclosure [Line Items]
2014	$ 419
2015	364
2016	389
2017	416
2018	444
2019 - 2023	2,691
Postretirement Medical Plans
Defined Benefit Plan Disclosure [Line Items]
2014	42	[1]
2015	45	[1]
2016	48	[1]
2017	51	[1]
2018	55	[1]
2019 - 2023	$ 336	[1]

[1] Estimated future benefit payments are net of expected Medicare subsidy receipts of $65 million.