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Estimated Future Amortization Expense Related to Intangible Assets (Detail) - USD ($)
$ in Millions
Mar. 31, 2021
Jun. 30, 2020
Goodwill And Intangible Assets Disclosure [Abstract]    
Year Ending June 30, 2021 (excluding the nine months ended March 31, 2021) $ 429  
Year Ending June 30, 2022 1,703  
Year Ending June 30, 2023 1,696  
Year Ending June 30, 2024 1,371  
Year Ending June 30, 2025 723  
Thereafter 2,205  
Net Carrying Amount $ 8,127 $ 7,038