Segment Information (Schedule Of Revenue, Operating Income And Identifiable Assets By Segment) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 27, 2024	Sep. 29, 2023	Sep. 27, 2024	Sep. 29, 2023
Segment Reporting Information [Line Items]
Total revenue	$ 875.8	$ 957.3	$ 2,699.9	$ 2,866.3
Segment operating income	116.4	121.3	287.2	351.9
Operating segment
Segment Reporting Information [Line Items]
Segment operating income	253.7	276.4	739.8	794.5
AECO
Segment Reporting Information [Line Items]
Total revenue	306.0	269.6	944.8	821.8
AECO | Operating segment
Segment Reporting Information [Line Items]
Segment operating income	89.0	77.8	294.8	235.6
Field Systems
Segment Reporting Information [Line Items]
Total revenue	374.6	495.4	1,173.1	1,515.9
Field Systems | Operating segment
Segment Reporting Information [Line Items]
Segment operating income	123.7	165.0	331.8	478.3
T&L
Segment Reporting Information [Line Items]
Total revenue	195.2	192.3	582.0	528.6
T&L | Operating segment
Segment Reporting Information [Line Items]
Segment operating income	$ 41.0	$ 33.6	$ 113.2	$ 80.6