Restructuring Charges and Other Costs Associated with Acquisitions and Cost-Reduction/Productivity Initiatives - Footnotes (Details) $ in Millions		3 Months Ended
		Apr. 02, 2017 USD ($) Employee	Apr. 03, 2016 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected number of positions eliminated (in number of employees) | Employee		150
Restructuring charges	[1]	$ 45	$ 30
Corporate [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges		19	1
IH [Member] | Operating Segments [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges		9	9
EH [Member] | Operating Segments [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges		(18)	3
WRD & GPD [Member] | Segment Reconciling Items [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges		10	3
Manufacturing operations [Member] | Segment Reconciling Items [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges		$ 24	$ 14

[1] In the three months ended April 2, 2017, restructuring charges are largely associated with cost-reduction and productivity initiatives not associated with acquisitions, as well as our acquisitions of Medivation and Anacor. In the three months ended April 3, 2016, restructuring charges are largely associated with cost-reduction and productivity initiatives not associated with acquisitions. In the three months ended April 2, 2017, Employee terminations represent the expected reduction of the workforce by approximately 150 employees, mainly in manufacturing, sales, research and corporate. Employee termination costs are generally recorded when the actions are probable and estimable and include accrued severance benefits, pension and postretirement benefits, many of which may be paid out during periods after termination. The restructuring charges for the three months ended April 2, 2017 are associated with the following: • IH ($9 million); EH ($18 million income); WRD/GPD ($10 million); manufacturing operations ($24 million); and Corporate ($19 million). The restructuring charges for the three months ended April 3, 2016 are associated with the following: • IH ($9 million); EH ($3 million); WRD/GPD ($3 million); manufacturing operations ($14 million); and Corporate ($1 million).