Income Taxes Tax Examination (Details) $ in Millions	12 Months Ended
	Jun. 30, 2018 USD ($)
Income Tax Examination [Line Items]
Advance payments for audit and post-audit year tax	$ 140.7
Advance interest payments for audit and post-audit year tax	$ 37.4
United States [Member] | Internal Revenue Service (IRS) [Member]
Income Tax Examination [Line Items]
Income tax years under examination	2009
United States [Member] | State and Local Jurisdiction [Member]
Income Tax Examination [Line Items]
Income tax years under examination	2009
Ireland | Foreign Country [Member]
Income Tax Examination [Line Items]
Income tax years under examination	2014
Philippines [Member] | Foreign Country [Member]
Income Tax Examination [Line Items]
Income tax years under examination	2015
Singapore | Foreign Country [Member]
Income Tax Examination [Line Items]
Income tax years under examination	2014
UNITED KINGDOM | Foreign Country [Member]
Income Tax Examination [Line Items]
Income tax years under examination	2012