Segment, Geographic and Other Revenue Information - Schedule of Significant Biopharma Segment Expenses (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 30, 2025	Mar. 31, 2024
Segment Reporting Information [Line Items]
Revenues:		$ 13,715	$ 14,879
Cost of sales	[1]	2,845	3,379
Selling, informational and administrative expenses	[1]	3,031	3,495
Research and development expenses	[1]	2,203	2,493
Acquired in-process research and development expenses		9	0
Other (income)/deductions––net		953	680
Income from continuing operations before provision/(benefit) for taxes on income	[2]	2,785	3,421
Biopharma [Member]
Segment Reporting Information [Line Items]
Revenues:		13,441	14,604
Cost of sales		2,314	2,643
Selling, informational and administrative expenses		2,150	2,334
Research and development expenses		1,941	2,151
Acquired in-process research and development expenses		9	0
Other (income)/deductions––net		(78)	(148)
Income from continuing operations before provision/(benefit) for taxes on income		$ 7,105	$ 7,622

[1] Exclusive of amortization of intangible assets.

[2] Income from continuing operations before provision/(benefit) for taxes on income.