Restructuring Charges and Other Costs Associated with Acquisitions and Cost-Reduction/Productivity Initiatives - Restructuring Accruals - Footnotes (Detail) - USD ($) $ in Millions	Oct. 01, 2017		Dec. 31, 2016
Restructuring Cost and Reserve [Line Items]
Restructuring reserve	$ 1,182	[1]	$ 1,583	[2]
Other Current Liabilities [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserve	533		863
Other Noncurrent Liabilities [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserve	$ 650		$ 720

[1] Included in Other current liabilities ($533 million) and Other noncurrent liabilities ($650 million).

[2] Included in Other current liabilities ($863 million) and Other noncurrent liabilities ($720 million).