XML 153 R142.htm IDEA: XBRL DOCUMENT v3.20.2
Events after the balance sheet date - Summary of exercising option to redeem outstanding principal amount (Detail) - Jul. 13, 2020 - Event After Reporting Date [member]
$ in Millions, $ in Millions, $ in Millions
USD ($)
AUD ($)
CAD ($)
2.500% Notes due 2022 [member]      
Disclosure Of Exercising Option To Redeem Outstanding Principal Amount [Line Items]      
Date of redemption Aug. 12, 2020    
Issuer ABIWW    
Title of series of notes issued exchanged 2.500% Notes due 2022    
Currency USD    
Original principal amount outstanding $ 454    
Principal amount not redeemed $ 454    
4.375% Notes due 2021 [member]      
Disclosure Of Exercising Option To Redeem Outstanding Principal Amount [Line Items]      
Date of redemption Aug. 12, 2020    
Issuer ABIWW    
Title of series of notes issued exchanged 4.375% Notes due 2021    
Currency USD    
Original principal amount outstanding $ 285    
Principal amount not redeemed $ 285    
3.250% Notes due 2022 [member]      
Disclosure Of Exercising Option To Redeem Outstanding Principal Amount [Line Items]      
Date of redemption Jul. 29, 2020    
Issuer ABIWW    
Title of series of notes issued exchanged 3.250% Notes due 2022    
Currency AUD    
Original principal amount outstanding   $ 550  
Principal amount not redeemed   $ 550  
3.375% Notes due 2023 [member]      
Disclosure Of Exercising Option To Redeem Outstanding Principal Amount [Line Items]      
Date of redemption Aug. 12, 2020    
Issuer ABIFI    
Title of series of notes issued exchanged 3.375% Notes due 2023    
Currency CAD    
Original principal amount outstanding     $ 600
Principal amount not redeemed     $ 600
3.750% Notes due 2022 [member]      
Disclosure Of Exercising Option To Redeem Outstanding Principal Amount [Line Items]      
Date of redemption Aug. 12, 2020    
Issuer ABNA    
Title of series of notes issued exchanged 3.750% Notes due 2022    
Currency USD    
Original principal amount outstanding $ 150    
Principal amount not redeemed $ 150