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	6 Months Ended
Jun. 28, 2026	Jun. 29, 2025	Jun. 28, 2026	Jun. 29, 2025
Sales by geographic area
Sales	$ 25,310	$ 23,743	$ 49,372	$ 45,636
Percent Change	6.60%		8.20%
United States
Sales by geographic area
Sales	$ 14,533	13,544	$ 27,863	25,849
Percent Change	7.30%		7.80%
Europe
Sales by geographic area
Sales	$ 5,726	5,387	$ 11,574	10,497
Percent Change	6.30%		10.30%
Western Hemisphere, excluding U.S.
Sales by geographic area
Sales	$ 1,309	1,206	$ 2,602	2,373
Percent Change	8.50%		9.60%
Asia-Pacific, Africa
Sales by geographic area
Sales	$ 3,742	$ 3,606	$ 7,333	$ 6,917
Percent Change	3.80%		6.00%

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