Pension and Postretirement Benefit Plans (Detail) - USD ($) $ in Millions			1 Months Ended	9 Months Ended
		Sep. 03, 2015	Jan. 31, 2015	Sep. 27, 2015
Defined Benefit Plan Disclosure [Line Items]
Prescription expense reimbursements received				$ 133
U.S. Qualified [Member]
Defined Benefit Plan Disclosure [Line Items]
Contributions from/reimbursements of our general assets for the nine months ended September 30, 2015			$ 1,000	1,000	[1]
Expected contributions from our general assets during 2015	[2]			1,000
U.S. Supplemental (Non-Qualified) [Member]
Defined Benefit Plan Disclosure [Line Items]
Contributions from/reimbursements of our general assets for the nine months ended September 30, 2015	[1]			103
Expected contributions from our general assets during 2015	[2]			122
International [Member]
Defined Benefit Plan Disclosure [Line Items]
Contributions from/reimbursements of our general assets for the nine months ended September 30, 2015	[1]			165
Expected contributions from our general assets during 2015	[2]			235
Postretirement Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Contributions from/reimbursements of our general assets for the nine months ended September 30, 2015	[1]			27
Expected contributions from our general assets during 2015	[2]			$ 80
Hospira [Member]
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation		$ (115)
Hospira [Member] | U.S. Qualified [Member]
Defined Benefit Plan Disclosure [Line Items]
Increase in benefit obligation from plan termination		$ (164)

[1] Contributions to the postretirement plans reflect reimbursements of approximately $133 million received for eligible 2014 prescription drug expenses for certain retirees.

[2] Contributions expected to be made for 2015 are inclusive of amounts contributed during the nine months ended September 27, 2015, including the $1.0 billion voluntary contribution that was made in January 2015 for the U.S. qualified plan. The U.S. supplemental (non-qualified) pension plan, international pension plan and the postretirement plan contributions from our general assets include direct employer benefit payments.