Restructuring Charges and Other Costs Associated with Acquisitions and Cost-Reduction/Productivity Initiatives (Detail) $ in Millions		3 Months Ended				6 Months Ended
		Jun. 28, 2015 USD ($)		Jun. 29, 2014 USD ($)		Jun. 28, 2015 USD ($) site		Jun. 29, 2014 USD ($)
Restructuring Cost and Reserve [Line Items]
Expected restructuring cost		$ 2,800				$ 2,800
Percentage of non-cash restructuring charges expected						25.00%
Total costs associated with acquisitions and cost-reduction/productivity initiatives						$ 280
Restructuring charges:
Employee terminations	[1]	34		$ 17		65		$ 47
Asset impairments	[1]	5		13		11		19
Exit costs	[1]	4		36		10		40
Total restructuring charges	[1]	43		66		85		106
Transaction costs	[2]	1		0		6		0
Pre-integration/integration costs	[3]	42		15		54		33
Restructuring charges and certain acquisition-related costs	[4]	86		81		146		139
Total additional depreciation––asset restructuring		28	[5]	102	[5]	47	[5]	176	[3]
Implementation costs recorded in our condensed consolidated statements of income as follows:
Total implementation costs		45	[6]	76	[6]	93	[6]	108	[5]
Total costs associated with acquisitions and cost-reduction/productivity initiatives		159		259		286		423
Cost of Sales [Member]
Restructuring charges:
Total additional depreciation––asset restructuring	[5]	28		72		45		146
Implementation costs recorded in our condensed consolidated statements of income as follows:
Total implementation costs	[6]	28		22		41		28
Selling, Informational and Administrative Expenses [Member]
Restructuring charges:
Total additional depreciation––asset restructuring		0	[3]	1	[3]	0	[5]	1	[5]
Implementation costs recorded in our condensed consolidated statements of income as follows:
Total implementation costs	[6]	13		38		39		53
Research and Development Expenses [Member]
Restructuring charges:
Total additional depreciation––asset restructuring	[5]	1		29		2		29
Implementation costs recorded in our condensed consolidated statements of income as follows:
Total implementation costs	[6]	3		16		12		27
Other (Income)/Deductions - Net [Member]
Implementation costs recorded in our condensed consolidated statements of income as follows:
Total implementation costs	[6]	1		$ 0		$ 1		$ 0
Manufacturing Plant Network Rationalization And Optimization [Member]
Restructuring Cost and Reserve [Line Items]
Expected number of sites exited | site						5
Acquisition-related Costs [Member] | Manufacturing Plant Network Rationalization And Optimization [Member]
Restructuring Cost and Reserve [Line Items]
Expected restructuring cost		300				$ 300
Restructuring costs incurred		252				252
Facility Closing [Member] | Manufacturing Plant Network Rationalization And Optimization [Member]
Restructuring Cost and Reserve [Line Items]
Expected restructuring cost		1,300				1,300
Restructuring costs incurred		340				340
Business Restructuring Reserves [Member] | Global Commercial Structure Reorganization [Member]
Restructuring Cost and Reserve [Line Items]
Expected restructuring cost		300				300
Restructuring costs incurred		191				191
Commercial Real Estate [Member] | Other Cost Reduction / Productivity Initiatives [Member]
Restructuring Cost and Reserve [Line Items]
Expected restructuring cost		900				900
Restructuring costs incurred		$ 263				$ 263

[1] In the six months ended June 28, 2015, Employee terminations represent the expected reduction of the workforce by approximately 500 employees, mainly in sales.The restructuring charges for 2015 are associated with the following:•For the second quarter of 2015, the Global Innovative Pharmaceutical segment (GIP) ($7 million); the Global Vaccines, Oncology and Consumer Healthcare segment (VOC) ($14 million); the Global Established Pharmaceutical segment (GEP) ($2 million income); Worldwide Research and Development and Medical (WRD/M) ($4 million); manufacturing operations ($14 million); and Corporate ($6 million).•For the first six months of 2015, GIP ($19 million); VOC ($27 million); GEP ($8 million); WRD/M ($16 million); manufacturing operations ($8 million income); and Corporate ($24 million).The restructuring charges for 2014 are associated with the following:•For the second quarter of 2014, GIP ($9 million); VOC ($6 million); GEP ($24 million); WRD/M ($8 million); manufacturing operations ($12 million); and Corporate ($7 million).•For the first six months of 2014, GIP ($11 million); VOC ($6 million); GEP ($31 million); WRD/M ($9 million); manufacturing operations ($38 million); and Corporate ($11 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] Pre-integration costs represent external, incremental costs directly related to our pending acquisition with Hospira. 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.