Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Condensed Consolidated Statements of Comprehensive Income
Net income from continuing operations	$ 421.7	$ 349.5	$ 1,122.4	$ 853.1
Add: Income from discontinued operations attributable to Amphenol Corporation, net of income taxes	7.7	0.0	10.3	0.0
Net income before allocation to noncontrolling interests	429.4	349.5	1,132.7	853.1
Total other comprehensive (loss) income, net of tax:
Foreign currency translation adjustments	(39.7)	102.9	(72.2)	28.7
Unrealized gain (loss) on hedging activities	(0.5)	0.4	0.4	(0.2)
Pension and postretirement benefit plan adjustment, net of tax of ($1.6) and ($4.9) for 2021, and ($1.7) and ($5.0) for 2020, respectively	5.1	5.2	15.3	15.5
Total other comprehensive income (loss), net of tax	(35.1)	108.5	(56.5)	44.0
Total comprehensive income	394.3	458.0	1,076.2	897.1
Less: Comprehensive income attributable to noncontrolling interests	(3.0)	(5.2)	(7.8)	(8.2)
Comprehensive income attributable to Amphenol Corporation	$ 391.3	$ 452.8	$ 1,068.4	$ 888.9