Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Condensed Consolidated Statements of Comprehensive Income
Net income from continuing operations	$ 369.0	$ 260.5	$ 700.7	$ 503.7
Add: Income (loss) from discontinued operations attributable to Amphenol Corporation, net of income taxes	2.6	0.0	2.6	0.0
Net income before allocation to noncontrolling interests	371.6	260.5	703.3	503.7
Total other comprehensive (loss) income, net of tax:
Foreign currency translation adjustments	29.8	26.4	(32.5)	(74.2)
Unrealized gain (loss) on hedging activities	0.8	(0.8)	0.9	(0.6)
Pension and postretirement benefit plan adjustment, net of tax of ($1.6) and ($3.3) for 2021, and ($1.7) and ($3.3) for 2020, respectively	5.1	5.2	10.2	10.3
Total other comprehensive income (loss), net of tax	35.7	30.8	(21.4)	(64.5)
Total comprehensive income	407.3	291.3	681.9	439.2
Less: Comprehensive income attributable to noncontrolling interests	(2.8)	(3.1)	(4.8)	(3.1)
Comprehensive income attributable to Amphenol Corporation	$ 404.5	$ 288.2	$ 677.1	$ 436.1