Restructuring Charges and Other Costs Associated with Acquisitions and Cost-Reduction/Productivity Initiatives (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 29, 2015		Mar. 30, 2014
Restructuring Cost and Reserve [Line Items]
Expected restructuring cost	$ 2,900
Total costs associated with acquisitions and cost-reduction/productivity initiatives	121
Percentage of non-cash restructuring charges expected	25.00%
Restructuring charges:
Employee terminations	31	[1]	30	[1]
Asset impairments	6	[1]	6	[1]
Exit costs	6	[1]	4	[1]
Total restructuring charges	42	[1]	40	[1]
Transaction costs	5	[2]	0	[2]
Integration costs	13	[3]	18	[3]
Restructuring charges and certain acquisition-related costs	60	[4]	58	[4]
Total additional depreciation––asset restructuring	18	[5]	74	[5]
Implementation costs recorded in our condensed consolidated statements of income as follows:
Total implementation costs	48	[6]	32	[6]
Total costs associated with acquisitions and cost-reduction/productivity initiatives	127		164
Cost of Sales [Member]
Restructuring charges:
Total additional depreciation––asset restructuring	17	[5]	74	[5]
Implementation costs recorded in our condensed consolidated statements of income as follows:
Total implementation costs	13	[6]	6	[6]
Selling, Informational and Administrative Expenses [Member]
Implementation costs recorded in our condensed consolidated statements of income as follows:
Total implementation costs	26	[6]	15	[6]
Research and Development Expenses [Member]
Restructuring charges:
Total additional depreciation––asset restructuring	1	[5]	0	[5]
Implementation costs recorded in our condensed consolidated statements of income as follows:
Total implementation costs	8	[6]	11	[6]
Manufacturing Plant Network Rationalization And Optimization [Member]
Restructuring Cost and Reserve [Line Items]
Expected number of sites exited	6
Acquisition-related Costs [Member] | Manufacturing Plant Network Rationalization And Optimization [Member]
Restructuring Cost and Reserve [Line Items]
Expected restructuring cost	300
Restructuring costs incurred	205
Facility Closing [Member] | Manufacturing Plant Network Rationalization And Optimization [Member]
Restructuring Cost and Reserve [Line Items]
Expected restructuring cost	1,500
Restructuring costs incurred	293
Business Restructuring Reserves [Member] | Global Commercial Structure Reorganization [Member]
Restructuring Cost and Reserve [Line Items]
Expected restructuring cost	300
Restructuring costs incurred	179
Commercial Real Estate [Member] | Other Cost Reduction / Productivity Initiatives [Member]
Restructuring Cost and Reserve [Line Items]
Expected restructuring cost	850
Restructuring costs incurred	$ 231

[1] In the three months ended March 29, 2015, Employee terminations represent the expected reduction of the workforce by approximately 200 employees, mainly in manufacturing and sales.The restructuring charges for the three months ended March 29, 2015 are associated with the following:•the Global Innovative Pharmaceutical segment (GIP) ($12 million); the Global Vaccines, Oncology and Consumer Healthcare segment (VOC) ($13 million); the Global Established Pharmaceutical segment (GEP) ($10 million); Worldwide Research and Development and Medical ($12 million); manufacturing operations ($22 million income); and Corporate ($18 million).The restructuring charges for the three months ended March 30, 2014 are associated with the following:•the Global Innovative Pharmaceutical segment (GIP) ($2 million); the Global Established Pharmaceutical segment (GEP) ($7 million); Worldwide Research and Development and Medical ($1 million); manufacturing operations ($26 million); and Corporate ($4 million).

[2] Transaction costs represent external costs directly related to acquired businesses and primarily include expenditures for banking, legal, accounting and other similar services.

[3] Integration costs represent external, incremental costs directly related to integrating acquired businesses, and primarily include expenditures for consulting and the integration of systems and processes.

[4] Amounts may not add due to rounding.

[5] Additional depreciation––asset restructuring represents the impact of changes in the estimated useful lives of assets involved in restructuring actions.

[6] Implementation costs represent external, incremental costs directly related to implementing our non-acquisition-related cost-reduction/productivity initiatives.