XML 76 R62.htm IDEA: XBRL DOCUMENT v3.21.1
Financial Instruments - Fair Value of Financial Instruments (Details) - USD ($)
$ in Millions
Mar. 31, 2021
Sep. 30, 2020
Carrying Value    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash and cash equivalents $ 321 $ 315
Short-term debt 17 39
Long-term debt 1,186 1,188
Carrying Value | Foreign currency option contracts    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Foreign currency contract assets 0 1
Carrying Value | Foreign exchange forward contracts    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Foreign currency contract assets 2 0
Foreign currency contract liabilities 0 1
Fair Value    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash and cash equivalents 321 315
Short-term debt 16 58
Long-term debt 1,307 1,259
Fair Value | Foreign currency option contracts    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Foreign currency contract assets 0 1
Fair Value | Foreign exchange forward contracts    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Foreign currency contract assets 2 0
Foreign currency contract liabilities $ 0 $ 1