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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Income Taxes (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Jun. 30, 2021
Income Tax Contingency [Line Items] |  |  |
Effective tax rate (as a percent) | 22.50% | 21.80% |
Increase (decrease) in effective tax rate (as a percent) | 0.70% |  |
Gross unrecognized tax benefits | $ 71 |  | $ 62
Total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate | 62 |  |
Gross interest and penalty accrued | 3 |  |
Total gross accrued interest and penalties related to unrecognized tax benefits | 16 |  | $ 14
Minimum |  |  |
Income Tax Contingency [Line Items] |  |  |
Decrease in unrecognized tax benefits is reasonably possible | 5 |  |
Maximum |  |  |
Income Tax Contingency [Line Items] |  |  |
Decrease in unrecognized tax benefits is reasonably possible | $ 10 |  |

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- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the income tax rates. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 6.I.Fact.4) -URI http://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319 + Details
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