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Borrowings - Narrative (Detail)
3 Months Ended
Sep. 30, 2021
USD ($)
Senior Notes  
Debt Instrument [Line Items]  
Debt instrument face amount $ 750,000,000
Debt instrument interest rate 3.666%
Debt instrument maturity date Jan. 31, 2022
Revolving Credit Agreement  
Debt Instrument [Line Items]  
Limit on revolving credit facility $ 1,000,000,000
Credit facility, maturity date Mar. 31, 2024
Sub-limit for maximum amount of letters of credit issuable under revolving credit facility $ 150,000,000
Borrowings outstanding $ 0