Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Condensed Consolidated Statements of Comprehensive Income
Net income	$ 349.5	$ 282.3	$ 853.1	$ 843.2
Total other comprehensive (loss) income, net of tax:
Foreign currency translation adjustments	102.9	(102.6)	28.7	(116.9)
Unrealized gain (loss) on cash flow hedges	0.4	0.1	(0.2)	0.1
Pension and postretirement benefit plan adjustment, net of tax of ($1.7) and ($5.0) for 2020, and ($1.2) and ($3.6) for 2019, respectively	5.2	3.8	15.5	11.3
Total other comprehensive (loss) income, net of tax	108.5	(98.7)	44.0	(105.5)
Total comprehensive income	458.0	183.6	897.1	737.7
Less: Comprehensive income attributable to noncontrolling interests	(5.2)	(0.1)	(8.2)	(4.9)
Comprehensive income attributable to Amphenol Corporation	$ 452.8	$ 183.5	$ 888.9	$ 732.8