Segment Information (Segment Select Balance Sheet) (Details) - USD ($) $ in Millions	Oct. 02, 2020	Jan. 03, 2020
Segment Reporting Information [Line Items]
Accounts receivable, net	$ 488.9	$ 608.2
Inventories	318.5	312.1
Goodwill	3,837.4	3,680.6
Buildings and Infrastructure
Segment Reporting Information [Line Items]
Accounts receivable, net	169.9	232.0
Inventories	59.6	67.1
Goodwill	1,982.1	1,973.0
Geospatial
Segment Reporting Information [Line Items]
Accounts receivable, net	106.7	115.5
Inventories	125.0	125.0
Goodwill	405.5	401.5
Resources and Utilities
Segment Reporting Information [Line Items]
Accounts receivable, net	75.2	93.3
Inventories	46.4	45.5
Goodwill	445.4	445.4
Transportation
Segment Reporting Information [Line Items]
Accounts receivable, net	137.1	167.4
Inventories	87.5	74.5
Goodwill	$ 1,004.4	$ 860.7

Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

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