Restructuring Charges and Other Costs Associated with Acquisitions and Cost-Reduction/Productivity Initiatives - Restructuring Accruals - Footnotes (Detail) - USD ($) $ in Millions	Sep. 27, 2020		Dec. 31, 2019
Restructuring Cost and Reserve [Line Items]
Restructuring reserve	$ 847	[1]	$ 933	[2]
Other Current Liabilities [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserve	607		714
Other Noncurrent Liabilities [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserve	$ 240		$ 219

[1] Included in Other current liabilities ($607 million) and Other noncurrent liabilities ($240 million).

[2] Included in Other current liabilities ($714 million) and Other noncurrent liabilities ($219 million).