Restructuring, Impairment and Integration Charges 2012 Productivity Plan Activity (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 13, 2015	Jun. 14, 2014	Jun. 13, 2015	Jun. 14, 2014
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions	$ 1	$ 0	$ 1	$ (3)
Payments for Restructuring			(107)	(112)
2012 Productivity Plan
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve - Period Start			33
Restructuring, Settlement and Impairment Provisions	4	15	10	17
Restructuring Charges After Tax	3	$ 14	9	$ 17
Payments for Restructuring			(22)
Restructuring Reserve, Settled without Cash			(2)
Restructuring Reserve - Period End	19		19
Employee Severance [Member] | 2012 Productivity Plan
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve - Period Start			28
Restructuring, Settlement and Impairment Provisions			1
Payments for Restructuring			(11)
Restructuring Reserve, Settled without Cash			(2)
Restructuring Reserve - Period End	16		16
Other Costs [Member] | 2012 Productivity Plan
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve - Period Start			5
Restructuring, Settlement and Impairment Provisions			9
Payments for Restructuring			(11)
Restructuring Reserve, Settled without Cash			0
Restructuring Reserve - Period End	$ 3		$ 3