Restructuring Charges and Other Costs Associated with Acquisitions and Cost-Reduction/Productivity Initiatives - Restructuring Accruals - Footnotes (Detail) - USD ($) $ in Millions	Dec. 31, 2023		Dec. 31, 2022		Dec. 31, 2021
Restructuring Cost and Reserve [Line Items]
Restructuring reserve	$ 1,988	[1]	$ 1,204	[2]	$ 1,071
Other Current Liabilities [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserve	1,300		991
Other Noncurrent Liabilities [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserve	$ 663		$ 213

[1] Included in Other current liabilities ($1.3 billion) and Other noncurrent liabilities ($663 million).

[2] Included in Other current liabilities ($991 million) and Other noncurrent liabilities ($213 million).