Business Combinations (Changes In Carrying Amount Of Goodwill By Operating Segment) (Detail) $ in Millions	3 Months Ended
	Apr. 01, 2016 USD ($)
Goodwill [Line Items]
Balance as of fiscal year 2015	$ 2,106.4
Additions due to acquisition	7.5
Purchase price adjustments	0.2
Foreign currency translation adjustments	19.3
Divestiture	(5.0)
Balance as of the end of the first quarter of fiscal 2016	2,128.4
Engineering And Construction [Member]
Goodwill [Line Items]
Balance as of fiscal year 2015	1,140.1
Additions due to acquisition	7.5
Purchase price adjustments	0.0
Foreign currency translation adjustments	14.3
Divestiture	0.0
Balance as of the end of the first quarter of fiscal 2016	1,161.9
Field Solutions [Member]
Goodwill [Line Items]
Balance as of fiscal year 2015	125.7
Additions due to acquisition	0.0
Purchase price adjustments	0.1
Foreign currency translation adjustments	1.1
Divestiture	0.0
Balance as of the end of the first quarter of fiscal 2016	126.9
Mobile Solutions [Member]
Goodwill [Line Items]
Balance as of fiscal year 2015	820.7
Additions due to acquisition	0.0
Purchase price adjustments	0.1
Foreign currency translation adjustments	3.2
Divestiture	(5.0)
Balance as of the end of the first quarter of fiscal 2016	819.0
Advanced Devices [Member]
Goodwill [Line Items]
Balance as of fiscal year 2015	19.9
Additions due to acquisition	0.0
Purchase price adjustments	0.0
Foreign currency translation adjustments	0.7
Divestiture	0.0
Balance as of the end of the first quarter of fiscal 2016	$ 20.6