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Reporting Segment And Geographic Information (Segment Select Balance Sheet) (Details) - USD ($) $ in Millions | Jan. 01, 2021 | Jan. 03, 2020 | Dec. 28, 2018
--- | --- | --- | ---
Segment Reporting Information [Line Items] |  |  |
Accounts receivable, net | $ 620.5 | $ 608.2 | $ 512.6
Inventories | 301.7 | 312.1 | 298.0
Goodwill | 3,876.5 | 3,680.6 | 3,540.0
Buildings and Infrastructure |  |  |
Segment Reporting Information [Line Items] |  |  |
Accounts receivable, net | 260.1 | 232.0 | 177.5
Inventories | 59.1 | 67.1 | 70.3
Goodwill | 1,997.4 | 1,973.0 | 1,970.2
Geospatial |  |  |
Segment Reporting Information [Line Items] |  |  |
Accounts receivable, net | 117.5 | 115.5 | 118.7
Inventories | 120.1 | 125.0 | 133.5
Goodwill | 415.7 | 401.5 | 403.1
Resources and Utilities |  |  |
Segment Reporting Information [Line Items] |  |  |
Accounts receivable, net | 91.2 | 93.3 | 83.8
Inventories | 49.0 | 45.5 | 46.2
Goodwill | 453.8 | 445.4 | 305.7
Transportation |  |  |
Segment Reporting Information [Line Items] |  |  |
Accounts receivable, net | 151.7 | 167.4 | 132.6
Inventories | 73.5 | 74.5 | 48.0
Goodwill | $ 1,009.6 | $ 860.7 | $ 861.0

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