Employee Benefit Plans (Details) (USD $) In Millions	3 Months Ended		6 Months Ended
	Jul. 01, 2011	Jun. 25, 2010	Jul. 01, 2011	Jun. 25, 2010
Pension Benefits
Schedule of Defined Benefit Plans Disclosures
Service Cost	$ 10	$ 11	$ 20	$ 21
Interest Cost	30	30	60	61
Expected Return on Plan Assets	(40)	(41)	(79)	(82)
Amortization of Net Loss	18	14	36	29
Amortization of Prior Service Cost	0	(1)	0	0
Net Periodic Benefit Cost	18	13	37	29
Other Post-Retirement Benefits
Schedule of Defined Benefit Plans Disclosures
Service Cost	1	1	2	2
Interest Cost	3	4	6	9
Amortization of Net Loss	2	2	3	4
Amortization of Prior Service Cost	(1)	0	(1)	0
Net Periodic Benefit Cost	$ 5	$ 7	$ 10	$ 15