v3.19.2

Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Disaggregation of Revenue [Line Items]
Revenues	$ 1,211.2	$ 1,224.8	$ 953.4	$ 972.8	$ 1,320.4	$ 1,071.9	$ 1,012.8	$ 924.8	$ 4,362.2	$ 4,329.9	$ 4,142.6
Distribution revenues
Disaggregation of Revenue [Line Items]
Revenues									1,460.8
Foreign currency exchange
Disaggregation of Revenue [Line Items]
Revenues									102.4
Recurring fee revenues
Disaggregation of Revenue [Line Items]
Revenues									2,759.3
Event-driven fee revenues
Disaggregation of Revenue [Line Items]
Revenues									244.5
Investor Communication Solutions
Disaggregation of Revenue [Line Items]
Revenues									3,511.1
Investor Communication Solutions | Total ICS Recurring fee revenues
Disaggregation of Revenue [Line Items]
Revenues									1,805.8
Investor Communication Solutions | Equity proxy
Disaggregation of Revenue [Line Items]
Revenues									437.0
Investor Communication Solutions | Mutual fund and exchange traded funds (“ETF”) interims
Disaggregation of Revenue [Line Items]
Revenues									265.9
Investor Communication Solutions | Customer communications and fulfillment
Disaggregation of Revenue [Line Items]
Revenues									736.4
Investor Communication Solutions | Other ICS
Disaggregation of Revenue [Line Items]
Revenues									366.5
Investor Communication Solutions | Total ICS Event-driven fee revenues
Disaggregation of Revenue [Line Items]
Revenues									244.5
Investor Communication Solutions | Equity and other
Disaggregation of Revenue [Line Items]
Revenues									107.3
Investor Communication Solutions | Mutual funds
Disaggregation of Revenue [Line Items]
Revenues									137.2
Investor Communication Solutions | Distribution revenues
Disaggregation of Revenue [Line Items]
Revenues									1,460.8
Global Technology and Operations | Total GTO Recurring fee revenues
Disaggregation of Revenue [Line Items]
Revenues									953.5
Global Technology and Operations | Equities and other
Disaggregation of Revenue [Line Items]
Revenues									788.9
Global Technology and Operations | Fixed income
Disaggregation of Revenue [Line Items]
Revenues									$ 164.6

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+ References

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045

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