Retirement Plans (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Sep. 28, 2012	Sep. 30, 2011	Sep. 24, 2010
U.S. Pension Plans
Defined benefit plan, net period benefit cost:
Service cost	$ 5	$ 7	$ 9
Interest cost	35	38	42
Expected return on plan assets	(42)	(43)	(45)
Amortization of prior service cost (credit)			1
Amortization of net actuarial loss	13	9	24
Plan settlements, curtailment and special termination benefits		(2)	1
Net periodic benefit cost	11	9	32
Weighted-average assumptions used to determine net periodic benefit cost during the year:
Discount rate (as a percent)	4.50%	5.00%	5.50%
Expected return on plan assets (as a percent)	8.00%	8.00%	8.00%
Rate of compensation increase (as a percent)		4.00%	4.00%
Amortization of net actuarial loss expected over the next fiscal year	14
Amortization of prior service cost expected over next fiscal year
Non-U.S. Pension Plans
Defined benefit plan, net period benefit cost:
Service cost	15	16	19
Interest cost	54	58	58
Expected return on plan assets	(60)	(59)	(55)
Amortization of prior service cost (credit)	(1)		(2)
Amortization of net actuarial loss	8	10	21
Plan settlements, curtailment and special termination benefits		(1)	(25)
Net periodic benefit cost	16	24	16
Weighted-average assumptions used to determine net periodic benefit cost during the year:
Discount rate (as a percent)	5.20%	5.10%	5.70%
Expected return on plan assets (as a percent)	6.80%	6.80%	7.00%
Rate of compensation increase (as a percent)	3.40%	3.60%	4.30%
Curtailment gain recognized in selling, general and administrative expenses			19
Amortization of net actuarial loss expected over the next fiscal year	12
Amortization of prior service cost expected over next fiscal year