Selected Quarterly Financial Data (Tables)

12 Months Ended

Dec. 28, 2018

Dec. 29, 2017

Quarterly Financial Information Disclosure [Abstract]

Schedule Of Selected Quarterly Financial Data

	First Quarter		Second Quarter		Third Quarter		Fourth Quarter
Fiscal Period	2018		2018		2018		2018
(In millions, except per share data)
Revenue	$	742.2	$	785.5	$	795.2	$	785.5
Gross margin	396.2		422.7		426.9		435.2
Net income attributable to Trimble Inc.	58.5		64.1		73.7		86.5
Basic net income per share	0.24		0.26		0.29		0.34
Diluted net income per share	0.23		0.25		0.29		0.34

	First Quarter		Second Quarter		Third Quarter		Fourth Quarter
Fiscal Period	2017		2017		2017		2017
	*As Adjusted		*As Adjusted		*As Adjusted		*As Adjusted
(In millions, except per share data)
Revenue	$	610.6	$	659.9	$	676.2	$	699.8
Gross margin	324.3		342.6		351.2		359.5
Net income (loss) attributable to Trimble Inc.	49.8		47.3		57.2		(35.9		)
Basic net income (loss) per share	0.20		0.19		0.23		(0.14		)
Diluted net income (loss) per share	0.19		0.18		0.22		(0.14		)

* See Note 2 for a summary of adjustments