Segment, Geographic and Other Revenue Information - Narrative (Detail) $ in Millions		6 Months Ended
		Jun. 28, 2015 USD ($) business Operating_segments	Dec. 31, 2014 USD ($)
Segment Reporting Information [Line Items]
Number of businesses		2
Number of operating segments (in operating segments) | Operating_segments		3
Total assets | $	[1]	$ 160,878	$ 169,274
Innovative Products [Member]
Segment Reporting Information [Line Items]
Number of operating segments (in operating segments) | Operating_segments		2
Global Vaccines, Oncology and Consumer Healthcare [Member]
Segment Reporting Information [Line Items]
Number of businesses		3

[1] Amounts may not add due to rounding.