Debt - Schedule of long-term debt (Details) - USD ($) $ in Thousands	12 Months Ended
Jun. 30, 2020	Jun. 30, 2019
Debt Instrument [Line Items]
Other long-term debt	$ 12,708	$ 340
Deferred debt issuance costs	(71,256)	(75,321)
Long-term debt	7,738,285	6,521,059
Less: Long-term debt payable within one year	86,029	228
Long-term debt, net	7,652,256	6,520,831
Medium-term Notes \| Fixed rate medium-term notes, 3.30% to 6.25%, due 2023 - 2045
Debt Instrument [Line Items]
Long-term debt	$ 2,125,000	$ 2,125,000
Medium-term Notes \| Fixed rate medium-term notes, 3.30% to 6.25%, due 2023 - 2045 \| Minimum
Debt Instrument [Line Items]
Interest rate	3.30%	3.30%
Medium-term Notes \| Fixed rate medium-term notes, 3.30% to 6.25%, due 2023 - 2045 \| Maximum
Debt Instrument [Line Items]
Interest rate	6.25%	6.25%
Senior Notes \| Senior Notes, 2.70% to 4.10%, due 2024 - 2049
Debt Instrument [Line Items]
Long-term debt	$ 3,675,000	$ 3,675,000
Senior Notes \| Senior Notes, 2.70% to 4.10%, due 2024 - 2049 \| Minimum
Debt Instrument [Line Items]
Interest rate	2.70%	2.70%
Senior Notes \| Senior Notes, 2.70% to 4.10%, due 2024 - 2049 \| Maximum
Debt Instrument [Line Items]
Interest rate	4.10%	4.10%
Senior Notes \| Euro Senior Notes, 1.125%, due 2025
Debt Instrument [Line Items]
Interest rate	1.125%	1.125%
Long-term debt	$ 786,520	$ 796,040
Term Loan \| Term loans, Libor plus 112.5 bps, due 2023 - 2024
Debt Instrument [Line Items]
Long-term debt	$ 1,210,313	$ 0
Term Loan \| Term loans, Libor plus 112.5 bps, due 2023 - 2024 \| LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate	1.125%	1.125%

Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer.

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

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-Name Accounting Standards Codification
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- Definition

Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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- Definition

Amount of long-term debt classified as other.

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