Segment, Geographic and Other Revenue Information - Revenues By Geographic Area (Detail) - USD ($) $ in Millions		3 Months Ended
		Apr. 03, 2022	Apr. 04, 2021
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	[1]	$ 25,661	$ 14,516
Percentage change in revenue		77.00%
U.S. [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		$ 8,918	7,530
Percentage change in revenue		18.00%
Developed Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		$ 6,090	3,038
Percentage change in revenue		100.00%
Developed Rest Of World [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		$ 3,286	1,123
Percentage change in revenue		193.00%
Emerging Markets [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		$ 7,367	$ 2,824
Percentage change in revenue		161.00%

[1] On December 31, 2021, we completed the sale of our Meridian subsidiary. Prior to its sale, Meridian was managed as part of the Hospital therapeutic area. Beginning in the fourth quarter of 2021, the financial results of Meridian were reflected as discontinued operations. Prior-period financial information has been restated, as appropriate. See Note 1A.