XML 65 R53.htm IDEA: XBRL DOCUMENT v3.10.0.1
Fair Value Measurements - Summary of Fair Values of Outstanding Foreign Currency Derivatives (Details) - Foreign Exchange Contract [Member] - USD ($)
$ in Millions
Jun. 30, 2018
Sep. 30, 2017
Accounts Receivable [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Foreign currency derivative assets $ 2 $ 2
Notional contract values 309 79
Accrued Expenses and Other Liabilities [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Notional contract values 460 1,601
Foreign currency derivative liabilities $ 3 $ 36