Severance and Facility Closure Costs (Detail) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 28, 2014
Restructuring Cost and Reserve [Line Items]
Beginning Balance	$ 178
Charges Incurred	140
Cash Payments	(139)
Ending Balance	179
Termination benefits
Restructuring Cost and Reserve [Line Items]
Beginning Balance	32
Charges Incurred	85
Cash Payments	(71)
Ending Balance	46
Termination benefits | Merger-related accruals
Restructuring Cost and Reserve [Line Items]
Beginning Balance	23
Charges Incurred	76
Cash Payments	(60)
Ending Balance	39
Termination benefits | Other restructuring accruals
Restructuring Cost and Reserve [Line Items]
Beginning Balance	5
Charges Incurred	9
Cash Payments	(9)
Ending Balance	5
Termination benefits | Acquired entity accruals
Restructuring Cost and Reserve [Line Items]
Beginning Balance	4
Cash Payments	(2)
Ending Balance	2
Other Restructuring
Restructuring Cost and Reserve [Line Items]
Beginning Balance	146
Charges Incurred	55
Cash Payments	(68)
Ending Balance	133
Other Restructuring | Merger-related accruals
Restructuring Cost and Reserve [Line Items]
Beginning Balance	25
Charges Incurred	48
Cash Payments	(29)
Currency, Lease Accretion and Other Adjustments	(3)
Ending Balance	41
Other Restructuring | Other restructuring accruals
Restructuring Cost and Reserve [Line Items]
Beginning Balance	62
Charges Incurred	6
Cash Payments	(25)
Currency, Lease Accretion and Other Adjustments	3
Ending Balance	46
Other Restructuring | Acquired entity accruals
Restructuring Cost and Reserve [Line Items]
Beginning Balance	59
Charges Incurred	1
Cash Payments	(14)
Ending Balance	$ 46