Tax Cuts And Jobs Act Of 2017, Reclassification From AOCI To Retained Earnings

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Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.

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Amount of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to expense for award under share-based payment arrangement. Excludes expense determined to be nondeductible upon grant or after for award under share-based payment arrangement.

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Basis of Presentation - Additional Information (Details) $ in Millions	12 Months Ended
	Jun. 30, 2019 segment	Jun. 30, 2019 Segment	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	Jul. 01, 2018 USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of reportable segments	2	2
Cumulative effect of changes in accounting principle						$ 101.3
Excess tax benefit related to stock-based compensation awards			$ 19.3	$ 40.9	$ 0.0
Increase to cash provided by operating activities			617.0	693.6	515.9
Decrease to cash provided from financing activities			173.1	449.9	$ 311.7
Accounting Standards Update 2018-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Increase to retained earnings as a result of the Tax Act of 2017						1.5
Accounting Standards Update 2016-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Increase to cash provided by operating activities			19.3	40.9
Decrease to cash provided from financing activities			$ 19.3	$ 40.9
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Including Noncontrolling Interest \| Accounting Standards Update 2016-01
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect of changes in accounting principle						(0.1)
Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect of changes in accounting principle						102.8
Retained Earnings \| Accounting Standards Update 2016-01
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect of changes in accounting principle						$ 0.1