v3.21.1
DEBT (Tables)
3 Months Ended
Mar. 31, 2021
Debt Disclosure [Abstract]  
Schedule of carrying amounts and fair values of long-term debt The carrying amounts and fair value of long-term debt are as follows:
 March 31, 2021December 31, 2020
(US$ in millions)Carrying
Value
Fair Value
(Level 2)
Carrying
Value
Fair Value
(Level 2)
Long-term debt, including current portion$4,350 $4,546 $4,460 $4,646