Revenue (Disaggregation of Revenue by Geographical Region) (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 01, 2022	Apr. 02, 2021
Disaggregation of Revenue [Line Items]
Revenue	$ 7,688	$ 6,858
Recurring revenue
Disaggregation of Revenue [Line Items]
Revenue	5,898	5,079
Nonrecurring revenue
Disaggregation of Revenue [Line Items]
Revenue	1,790	1,779
North America
Disaggregation of Revenue [Line Items]
Revenue	3,354	2,727
Western Europe
Disaggregation of Revenue [Line Items]
Revenue	1,828	1,664
Other developed markets
Disaggregation of Revenue [Line Items]
Revenue	378	372
High-growth markets
Disaggregation of Revenue [Line Items]
Revenue	2,128	2,095
Operating segments | Life Sciences
Disaggregation of Revenue [Line Items]
Revenue	3,882	3,546
Operating segments | Life Sciences | Recurring revenue
Disaggregation of Revenue [Line Items]
Revenue	2,838	2,529
Operating segments | Life Sciences | Nonrecurring revenue
Disaggregation of Revenue [Line Items]
Revenue	1,044	1,017
Operating segments | Life Sciences | North America
Disaggregation of Revenue [Line Items]
Revenue	1,520	1,263
Operating segments | Life Sciences | Western Europe
Disaggregation of Revenue [Line Items]
Revenue	1,035	970
Operating segments | Life Sciences | Other developed markets
Disaggregation of Revenue [Line Items]
Revenue	222	225
Operating segments | Life Sciences | High-growth markets
Disaggregation of Revenue [Line Items]
Revenue	1,105	1,088
Operating segments | Diagnostics
Disaggregation of Revenue [Line Items]
Revenue	2,644	2,178
Operating segments | Diagnostics | Recurring revenue
Disaggregation of Revenue [Line Items]
Revenue	2,370	1,902
Operating segments | Diagnostics | Nonrecurring revenue
Disaggregation of Revenue [Line Items]
Revenue	274	276
Operating segments | Diagnostics | North America
Disaggregation of Revenue [Line Items]
Revenue	1,306	972
Operating segments | Diagnostics | Western Europe
Disaggregation of Revenue [Line Items]
Revenue	524	415
Operating segments | Diagnostics | Other developed markets
Disaggregation of Revenue [Line Items]
Revenue	124	118
Operating segments | Diagnostics | High-growth markets
Disaggregation of Revenue [Line Items]
Revenue	690	673
Operating segments | Environmental & Applied Solutions
Disaggregation of Revenue [Line Items]
Revenue	1,162	1,134
Operating segments | Environmental & Applied Solutions | Recurring revenue
Disaggregation of Revenue [Line Items]
Revenue	690	648
Operating segments | Environmental & Applied Solutions | Nonrecurring revenue
Disaggregation of Revenue [Line Items]
Revenue	472	486
Operating segments | Environmental & Applied Solutions | North America
Disaggregation of Revenue [Line Items]
Revenue	528	492
Operating segments | Environmental & Applied Solutions | Western Europe
Disaggregation of Revenue [Line Items]
Revenue	269	279
Operating segments | Environmental & Applied Solutions | Other developed markets
Disaggregation of Revenue [Line Items]
Revenue	32	29
Operating segments | Environmental & Applied Solutions | High-growth markets
Disaggregation of Revenue [Line Items]
Revenue	$ 333	$ 334