Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Consolidated Statements of Comprehensive Income
Net income	$ 1,164.0	$ 1,216.9	$ 660.7
Total other comprehensive (loss) income, net of tax:
Foreign currency translation adjustments	(40.8)	(167.0)	243.3
Unrealized gain (loss) on cash flow hedges	0.1	0.4	(0.1)
Pension and postretirement benefit plan adjustment	(0.4)	(1.8)	27.8
Total other comprehensive (loss) income, net of tax	(41.1)	(168.4)	271.0
Total comprehensive income	1,122.9	1,048.5	931.7
Less: Comprehensive income attributable to noncontrolling interests	(8.6)	(9.2)	(13.2)
Comprehensive income attributable to Amphenol Corporation	$ 1,114.3	$ 1,039.3	$ 918.5