Segments of business and geographic areas - Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 29, 2026	Mar. 30, 2025
Sales by geographic area
Sales	$ 24,062	$ 21,893
Percent Change	9.90%
United States
Sales by geographic area
Sales	$ 13,330	12,305
Percent Change	8.30%
Europe
Sales by geographic area
Sales	$ 5,848	5,110
Percent Change	14.50%
Western Hemisphere, excluding U.S.
Sales by geographic area
Sales	$ 1,293	1,167
Percent Change	10.80%
Asia-Pacific, Africa
Sales by geographic area
Sales	$ 3,591	$ 3,311
Percent Change	8.50%

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details