Segment Information (Segment Revenue by Geographic Areas) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 01, 2022	Jul. 02, 2021	Jul. 01, 2022	Jul. 02, 2021
Operating segment
Segment Reporting Information [Line Items]
Revenue	$ 941.2	$ 945.3	$ 1,934.9	$ 1,832.0
North America | Operating segment
Segment Reporting Information [Line Items]
Revenue	512.9	493.1	1,011.3	943.5
Europe | Operating segment
Segment Reporting Information [Line Items]
Revenue	261.4	291.9	580.6	572.1
Asia Pacific | Operating segment
Segment Reporting Information [Line Items]
Revenue	103.8	108.0	219.3	217.8
Rest of World | Operating segment
Segment Reporting Information [Line Items]
Revenue	63.1	52.3	123.7	98.6
United States
Segment Reporting Information [Line Items]
Revenue	467.4	443.3	914.4	850.1
Buildings and Infrastructure | Operating segment
Segment Reporting Information [Line Items]
Revenue	382.6	364.8	780.2	707.9
Buildings and Infrastructure | North America | Operating segment
Segment Reporting Information [Line Items]
Revenue	242.9	212.2	474.8	412.0
Buildings and Infrastructure | Europe | Operating segment
Segment Reporting Information [Line Items]
Revenue	84.0	101.0	196.3	195.3
Buildings and Infrastructure | Asia Pacific | Operating segment
Segment Reporting Information [Line Items]
Revenue	49.9	45.8	96.8	89.4
Buildings and Infrastructure | Rest of World | Operating segment
Segment Reporting Information [Line Items]
Revenue	5.8	5.8	12.3	11.2
Geospatial | Operating segment
Segment Reporting Information [Line Items]
Revenue	193.7	219.7	401.2	401.4
Geospatial | North America | Operating segment
Segment Reporting Information [Line Items]
Revenue	87.9	97.2	171.3	169.7
Geospatial | Europe | Operating segment
Segment Reporting Information [Line Items]
Revenue	61.3	72.2	132.5	132.6
Geospatial | Asia Pacific | Operating segment
Segment Reporting Information [Line Items]
Revenue	32.8	39.5	74.8	77.0
Geospatial | Rest of World | Operating segment
Segment Reporting Information [Line Items]
Revenue	11.7	10.8	22.6	22.1
Resources and Utilities | Operating segment
Segment Reporting Information [Line Items]
Revenue	214.8	197.5	444.7	402.7
Resources and Utilities | North America | Operating segment
Segment Reporting Information [Line Items]
Revenue	64.3	60.4	123.3	114.0
Resources and Utilities | Europe | Operating segment
Segment Reporting Information [Line Items]
Revenue	97.7	93.6	211.7	199.4
Resources and Utilities | Asia Pacific | Operating segment
Segment Reporting Information [Line Items]
Revenue	13.5	15.1	32.7	36.1
Resources and Utilities | Rest of World | Operating segment
Segment Reporting Information [Line Items]
Revenue	39.3	28.4	77.0	53.2
Transportation | Operating segment
Segment Reporting Information [Line Items]
Revenue	150.1	163.3	308.8	320.0
Transportation | North America | Operating segment
Segment Reporting Information [Line Items]
Revenue	117.8	123.3	241.9	247.8
Transportation | Europe | Operating segment
Segment Reporting Information [Line Items]
Revenue	18.4	25.1	40.1	44.8
Transportation | Asia Pacific | Operating segment
Segment Reporting Information [Line Items]
Revenue	7.6	7.6	15.0	15.3
Transportation | Rest of World | Operating segment
Segment Reporting Information [Line Items]
Revenue	$ 6.3	$ 7.3	$ 11.8	$ 12.1