Pension Benefits (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Jun. 16, 2012	Mar. 24, 2012	Mar. 19, 2011
U.S. Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost		$ 6	$ 5
Interest cost		15	15
Expected return on plan assets		(16)	(16)
Amortization of net loss		15	7
Net periodic benefit cost		20	11
Contribution to the Plan	33
International Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost		0	1
Interest cost		2	2
Expected return on plan assets		(2)	(2)
Amortization of net loss		0	0
Net periodic benefit cost		0	1
Estimated Future Employer Contributions in Current Fiscal Year		0
U.K. Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Contribution to the Plan		$ 7