Intangible Assets and Goodwill (Changes In Carrying Amount Of Goodwill By Operating Segment) (Details) $ in Millions	6 Months Ended
	Jul. 01, 2022 USD ($)
Goodwill [Roll Forward]
Balance as of year end 2021	$ 3,981.5
Decrease from the sale of businesses	(37.7)
Foreign currency translation and other adjustments	(57.8)
Balance as of the end of the second quarter of 2022	3,886.0
Buildings and Infrastructure
Goodwill [Roll Forward]
Balance as of year end 2021	2,141.4
Decrease from the sale of businesses	(23.9)
Foreign currency translation and other adjustments	(33.8)
Balance as of the end of the second quarter of 2022	2,083.7
Geospatial
Goodwill [Roll Forward]
Balance as of year end 2021	403.6
Decrease from the sale of businesses	(6.9)
Foreign currency translation and other adjustments	(11.4)
Balance as of the end of the second quarter of 2022	385.3
Resources and Utilities
Goodwill [Roll Forward]
Balance as of year end 2021	440.8
Decrease from the sale of businesses	0.0
Foreign currency translation and other adjustments	(8.5)
Balance as of the end of the second quarter of 2022	432.3
Transportation
Goodwill [Roll Forward]
Balance as of year end 2021	995.7
Decrease from the sale of businesses	(6.9)
Foreign currency translation and other adjustments	(4.1)
Balance as of the end of the second quarter of 2022	$ 984.7