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Business Combinations (Schedule Of Changes In Carrying Amount Of Goodwill) (Details) $ in Millions | 12 Months Ended
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Dec. 29, 2017 USD ($)
Goodwill [Line Items] |  |
Beginning Balance | $ 2,077.6 |
Additions due to acquisitions and current year acquisitions' purchase price adjustments | 140.6 |
Purchase price adjustments - prior years' acquisitions | (0.1) |
Foreign currency translation adjustments | 75.9 |
Divestitures (1) | (6.9) | [1]
Ending Balance | 2,287.1 |
Building and Infrastructure [Member] |  |
Goodwill [Line Items] |  |
Beginning Balance | 663.7 |
Additions due to acquisitions and current year acquisitions' purchase price adjustments | 2.5 |
Purchase price adjustments - prior years' acquisitions | (0.1) |
Foreign currency translation adjustments | 40.7 |
Divestitures (1) | 0.0 | [1]
Ending Balance | 706.8 |
Geospatial [Member] |  |
Goodwill [Line Items] |  |
Beginning Balance | 405.1 |
Additions due to acquisitions and current year acquisitions' purchase price adjustments | 0.0 |
Purchase price adjustments - prior years' acquisitions | 0.0 |
Foreign currency translation adjustments | 17.1 |
Divestitures (1) | (6.9) | [1]
Ending Balance | 415.3 |
Resources and Utilities [Member] |  |
Goodwill [Line Items] |  |
Beginning Balance | 217.7 |
Additions due to acquisitions and current year acquisitions' purchase price adjustments | 86.3 |
Purchase price adjustments - prior years' acquisitions | 0.0 |
Foreign currency translation adjustments | 10.5 |
Divestitures (1) | 0.0 | [1]
Ending Balance | 314.5 |
Transportation [Member] |  |
Goodwill [Line Items] |  |
Beginning Balance | 791.1 |
Additions due to acquisitions and current year acquisitions' purchase price adjustments | 51.8 |
Purchase price adjustments - prior years' acquisitions | 0.0 |
Foreign currency translation adjustments | 7.6 |
Divestitures (1) | 0.0 | [1]
Ending Balance | $ 850.5 |
[1] | In the first quarter of 2017, the Company sold its ThingMagic business, which was part of the Geospatial segment

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