Condensed Consolidated Statements Of Income (unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Oct. 01, 2021	Oct. 02, 2020	Oct. 01, 2021	Oct. 02, 2020
Revenue:
Revenue	$ 901.4	$ 792.1	$ 2,733.1	$ 2,318.0
Cost of sales:
Amortization of purchased intangible assets	22.0	23.3	66.1	70.0
Cost of sales	396.9	352.4	1,209.9	1,031.6
Gross margin	504.5	439.7	1,523.2	1,286.4
Operating expense:
Research and development	132.5	117.9	400.2	350.1
Sales and marketing	125.5	111.6	373.1	346.9
General and administrative	85.2	79.4	270.2	221.2
Restructuring	1.5	12.1	7.5	20.1
Amortization of purchased intangible assets	12.3	16.7	39.0	50.2
Total operating expense	357.0	337.7	1,090.0	988.5
Operating income	147.5	102.0	433.2	297.9
Non-operating income (expense), net:
Interest expense, net	(15.9)	(19.6)	(49.4)	(59.7)
Income from equity method investments, net	8.5	10.8	30.3	29.9
Other income (expense), net	16.6	3.2	42.4	(1.4)
Total non-operating income (expense), net	9.2	(5.6)	23.3	(31.2)
Income before taxes	156.7	96.4	456.5	266.7
Income tax provision	32.7	11.6	79.0	56.8
Net income	124.0	84.8	377.5	209.9
Net income attributable to noncontrolling interests	0.0	0.1	0.1	0.3
Net income attributable to Trimble Inc.	$ 124.0	$ 84.7	$ 377.4	$ 209.6
Earnings per share attributable to Trimble Inc.:
Basic (in dollars per share)	$ 0.49	$ 0.34	$ 1.50	$ 0.84
Diluted (in dollars per share)	$ 0.49	$ 0.34	$ 1.48	$ 0.83
Shares used in calculating earnings per share:
Basic (in shares)	251.8	250.7	251.5	250.4
Diluted (in shares)	254.5	252.8	254.3	251.9
Product
Revenue:
Revenue	$ 551.2	$ 461.4	$ 1,685.5	$ 1,337.6
Cost of sales:
Cost of sales, excluding amortization	266.7	221.2	808.4	630.7
Service
Revenue:
Revenue	159.9	160.7	484.3	479.7
Cost of sales:
Cost of sales, excluding amortization	55.5	55.5	173.1	175.1
Subscription
Revenue:
Revenue	190.3	170.0	563.3	500.7
Cost of sales:
Cost of sales, excluding amortization	$ 52.7	$ 52.4	$ 162.3	$ 155.8