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Debt - Narrative (Details) - USD ($) | 6 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2020 | Aug. 13, 2020 | Jun. 30, 2020
Debt Instrument [Line Items] |  |  |
Notes payable | $ 2,007,600,000 |  | $ 2,008,400,000
Derivative, notional amount | 1,000,000,000.0 | $ 600,000,000.0 | 400,000,000.0
Unrealized loss on cash flow hedging instruments | 43,600,000 |  |
Fair value of notes issued | $ 2,120,600,000 |  |
Notes |  |  |
Debt Instrument [Line Items] |  |  |
Debt instrument, term | 10 years |  |
Aggregate principal amount | $ 2,000,000,000.0 |  |
Fixed-rate 2.250% notes due September 15, 2020 |  |  |
Debt Instrument [Line Items] |  |  |
Notes payable |  |  | $ 1,000,000,000.0

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- Definition Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. + References No definition available. + Details
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- Definition Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details
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