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BORROWINGS - Corporate Borrowings (Details) - USD ($) $ in Millions | Jun. 30, 2019 | Dec. 31, 2018
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Corporate revolving credit facility |  |
Disclosure of detailed information about borrowings [line items] |  |
Subsidiary and corporate borrowings | $ 0 | $ 510
Corporate revolving credit facility | Floating interest rate |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings, adjustment to interest rate basis | 1.20% |
Medium Term Notes, Public - Canadian - Maturing October 30, 2020 |  |
Disclosure of detailed information about borrowings [line items] |  |
Subsidiary and corporate borrowings | $ 286 | 275
Medium Term Notes, Public - Canadian - Maturing October 30, 2020 | Fixed interest rate |  |
Disclosure of detailed information about borrowings [line items] |  |
Annual Rate | 3.50% |
Medium Term Notes, Public - Canadian - Maturing March 11, 2022 |  |
Disclosure of detailed information about borrowings [line items] |  |
Subsidiary and corporate borrowings | $ 344 | 330
Medium Term Notes, Public - Canadian - Maturing March 11, 2022 | Fixed interest rate |  |
Disclosure of detailed information about borrowings [line items] |  |
Annual Rate | 3.50% |
Medium Term Notes, Public - Canadian - Maturing February 22, 2024 |  |
Disclosure of detailed information about borrowings [line items] |  |
Subsidiary and corporate borrowings | $ 229 | 220
Medium Term Notes, Public - Canadian - Maturing February 22, 2024 | Fixed interest rate |  |
Disclosure of detailed information about borrowings [line items] |  |
Annual Rate | 3.30% |
Medium Term Notes, Public - Canadian - Maturing February 22, 2024 |  |
Disclosure of detailed information about borrowings [line items] |  |
Subsidiary and corporate borrowings | $ 305 | 293
Medium Term Notes, Public - Canadian - Maturing February 22, 2024 | Fixed interest rate |  |
Disclosure of detailed information about borrowings [line items] |  |
Annual Rate | 3.30% |
Medium-term Notes, Maturing September 11, 2028 [Domain] |  |
Disclosure of detailed information about borrowings [line items] |  |
Subsidiary and corporate borrowings | $ 382 | 365
Medium-term Notes, Maturing September 11, 2028 [Domain] | Fixed interest rate |  |
Disclosure of detailed information about borrowings [line items] |  |
Annual Rate | 4.20% |
Corporate borrowings |  |
Disclosure of detailed information about borrowings [line items] |  |
Subsidiary and corporate borrowings | $ 1,546 | $ 1,993

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- Definition The amount of outstanding funds that the entity is obligated to repay. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_55&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The adjustment to the basis (reference rate) used for calculation of the interest rate on borrowings. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 7 -IssueDate 2018-01-01 -Paragraph 7 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2018-03-01&anchor=para_7&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The interest rate on borrowings. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 7 -IssueDate 2018-01-01 -Paragraph 7 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2018-03-01&anchor=para_7&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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- Details
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