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Goodwill - Additional Information (Detail) - USD ($) | May 01, 2020 | May 01, 2019 | May 01, 2018 | Jun. 30, 2020 | Jun. 30, 2019
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Goodwill And Intangible Assets Disclosure [Abstract] |  |  |  |  |
Goodwill impairment charge | $ 0 | $ 0 | $ 0 |  |
Accumulated goodwill impairment |  |  |  | $ 11,300,000,000 | $ 11,300,000,000

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