Debt - Schedule of long-term debt (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Debt Instrument [Line Items]
Long-term debt	$ 5,383,343	$ 2,733,140
Other long-term debt	433	0
Debt issuance costs	(47,183)	(22,596)
Total long-term debt	5,336,160	2,710,544
Less: Long-term debt payable within one year	474,265	58,087
Long-term debt, net	4,861,895	2,652,457
Senior Notes and Term Loan Issued During 2017
Debt Instrument [Line Items]
Debt issuance costs	(27,782)
Medium-term Notes | Fixed rate medium-term notes, 3.30% to 6.55%, due 2018-2045
Debt Instrument [Line Items]
Long-term debt	2,675,000	2,675,000
Senior Notes | Senior Notes, 3.25% to 4.10%, due 2027 - 2047
Debt Instrument [Line Items]
Long-term debt	$ 1,300,000	0
Senior Notes | Euro Senior Notes, 1.125%, due 2025
Debt Instrument [Line Items]
Interest rate	1.125%
Long-term debt	$ 799,890	0
Term Loan | Term loan, Libor plus 100 bps, due 2020
Debt Instrument [Line Items]
Basis spread on variable rate	1.00%
Long-term debt	$ 493,750	0
Term Loan | Euro Term loan, Libor plus 150 bps, due 2022
Debt Instrument [Line Items]
Basis spread on variable rate	1.50%
Long-term debt	$ 114,270	$ 0
Foreign | Japanese Yen credit facility, JPY Libor plus 55 bps, due 2017
Debt Instrument [Line Items]
Basis spread on variable rate	0.55%	0.55%
Long-term debt	$ 0	$ 58,140
Minimum | Medium-term Notes | Fixed rate medium-term notes, 3.30% to 6.55%, due 2018-2045
Debt Instrument [Line Items]
Interest rate	3.30%	3.30%
Minimum | Senior Notes | Senior Notes, 3.25% to 4.10%, due 2027 - 2047
Debt Instrument [Line Items]
Interest rate	3.25%
Maximum | Medium-term Notes | Fixed rate medium-term notes, 3.30% to 6.55%, due 2018-2045
Debt Instrument [Line Items]
Interest rate	6.55%	6.55%
Maximum | Senior Notes | Senior Notes, 3.25% to 4.10%, due 2027 - 2047
Debt Instrument [Line Items]
Interest rate	4.10%