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Borrowings - Scheduled of Debt Maturities Excluding Other Obligations and Debt Issuance Costs (Detail)
$ in Millions
Jun. 30, 2017
USD ($)
Debt Disclosure [Abstract]  
Fiscal 2018 $ 92
Fiscal 2019 92
Fiscal 2020 185
Fiscal 2021 0
Fiscal 2022 0
Thereafter $ 0