v3.21.2

DEBT (Tables) | 6 Months Ended
--- | ---
Jun. 30, 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:
| June 30, 2021 |  | December 31, 2020
(US$ in millions) | Carrying Value | Fair Value (Level 2) |  |  |  | Carrying Value | Fair Value (Level 2) |  |
Long-term debt, including current portion | $ | 5,367 |  | $ | 5,570 |  |  |  |  | $ | 4,460 |  | $ | 4,646 |  |  |

X
- References No definition available. + Details
Name: | us-gaap_DebtDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=123594938&loc=d3e13467-108611 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
Name: | us-gaap_FairValueByBalanceSheetGroupingTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration