Condensed Consolidated Statements Of Income - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 29, 2017	Sep. 30, 2016	Sep. 29, 2017	Sep. 30, 2016
Revenue:
Product	$ 446.1	$ 384.9	$ 1,297.1	$ 1,185.5
Service	115.0	105.6	331.8	316.9
Subscription	108.9	93.6	316.9	274.3
Total revenue	670.0	584.1	1,945.8	1,776.7
Cost of sales:
Product	222.8	186.6	637.0	576.0
Service	46.4	40.7	141.2	126.3
Subscription	28.3	26.0	82.5	79.3
Amortization of purchased intangible assets	23.0	21.8	62.5	69.9
Total cost of sales	320.5	275.1	923.2	851.5
Gross margin	349.5	309.0	1,022.6	925.2
Operating expense:
Research and development	92.6	86.9	272.1	266.6
Sales and marketing	100.6	88.6	295.8	282.7
General and administrative	74.0	59.2	218.4	193.1
Restructuring charges	1.3	3.5	6.5	9.8
Amortization of purchased intangible assets	17.0	15.5	46.6	47.3
Total operating expense	285.5	253.7	839.4	799.5
Operating income	64.0	55.3	183.2	125.7
Non-operating income (expense), net:
Interest expense, net	(6.3)	(6.6)	(18.4)	(19.8)
Foreign currency transaction gain (loss), net	1.6	0.0	3.0	(1.6)
Income from equity method investments, net	8.7	5.2	22.8	13.9
Other income (expense), net	1.6	(1.7)	12.2	1.7
Total non-operating income (expense), net	5.6	(3.1)	19.6	(5.8)
Income before taxes	69.6	52.2	202.8	119.9
Income tax provision	13.9	13.0	46.7	25.4
Net income	55.7	39.2	156.1	94.5
Less: Net loss attributable to noncontrolling interests	0.0	0.0	0.0	(0.2)
Net income attributable to Trimble Inc.	$ 55.7	$ 39.2	$ 156.1	$ 94.7
Basic earnings per share	$ 0.22	$ 0.16	$ 0.62	$ 0.38
Shares used in calculating basic earnings per share	252.6	249.7	252.5	250.5
Diluted earnings per share	$ 0.22	$ 0.15	$ 0.61	$ 0.37
Shares used in calculating diluted earnings per share	257.9	253.2	257.0	253.7