Pension Benefits (Change in Projected Benefit Obligation, Plan Assets, and Funding Status) (Details) (USD $)	12 Months Ended
	Jan. 03, 2015	Dec. 28, 2013
Amounts recognized in the Consolidated Balance Sheet consist of
Other assets	$ 250,000,000	$ 419,000,000
Other liabilities	(777,000,000)	(277,000,000)
Amounts recognized in accumulated other comprehensive income consist of
Accumulated benefit obligation for all defined benefit pension plans	5,100,000,000	4,500,000,000
Pension [Member]
Change in projected benefit obligation
Beginning of year	4,888,000,000	5,135,000,000
Service cost	106,000,000	133,000,000
Interest cost	225,000,000	203,000,000
Plan participants' contributions	2,000,000	2,000,000
Amendments	4,000,000	4,000,000
Actuarial gain (loss)	754,000,000	(407,000,000)
Benefits paid	(281,000,000)	(218,000,000)
Acquisitions	0	17,000,000
Curtailment and special termination benefits	0	26,000,000
Foreign currency adjustments	(131,000,000)	(7,000,000)
Other	3,000,000
End of year	5,570,000,000	4,888,000,000
Change in plan assets
Fair value beginning of year	5,014,000,000	4,374,000,000
Actual return on plan assets	390,000,000	802,000,000
Employer contributions	37,000,000	34,000,000
Plan participants' contributions	2,000,000	2,000,000
Benefits paid, Plan Assets	(261,000,000)	(200,000,000)
Foreign currency adjustments	(157,000,000)	2,000,000
Other	3,000,000
Fair value end of year	5,028,000,000	5,014,000,000
Funded status	(542,000,000)	126,000,000
Amounts recognized in the Consolidated Balance Sheet consist of
Other assets	250,000,000	419,000,000
Other current liabilities	(15,000,000)	(16,000,000)
Other liabilities	(777,000,000)	(277,000,000)
Net amount recognized	(542,000,000)	126,000,000
Amounts recognized in accumulated other comprehensive income consist of
Prior service cost	59,000,000	73,000,000
Net amount recognized	$ 59,000,000	$ 73,000,000