Consolidated Statements of Comprehensive Income - USD ($) $ in Millions		12 Months Ended
		Jan. 02, 2016	Jan. 03, 2015	Dec. 28, 2013
Comprehensive income (loss):
Net earnings		$ 490.6	$ 432.1	$ 359.7
Other comprehensive income (loss):
Foreign currency translation	[1]	(110.8)	(128.8)	(8.6)
Unrealized cash flow hedges, net of tax:
Reclassification of cash flow hedges to net earnings		(0.3)	(0.3)	(0.4)
Defined benefit pension and postretirement plans:
Net prior service costs and credits and unrecognized gain (loss)		(48.3)	(136.1)	100.2
Income tax benefit (expense)		19.4	47.9	(37.3)
Net of tax		(28.9)	(88.2)	62.9
Amortization of net prior service costs and credits and unrecognized loss included in net periodic benefit cost		38.0	22.0	40.7
Income tax benefit		(14.0)	(8.1)	(15.2)
Net of tax		24.0	13.9	25.5
Total comprehensive income		374.6	228.7	439.1
Comprehensive income attributable to noncontrolling interests		(11.9)	(10.2)	(9.4)
Comprehensive income attributable to Snap-on Incorporated		$ 362.7	$ 218.5	$ 429.7

[1] There is no reclassification adjustment as there was no sale or liquidation of any foreign entity during any period presented.