XML 152 R104.htm IDEA: XBRL DOCUMENT
v3.8.0.1

FINANCE COSTS, NET (Details) - USD ($) $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2017 | Dec. 31, 2016 | May 02, 2013 | Sep. 30, 2008
Disclosure of Detailed Information about Finance Income (Expense) [Line Items] |  |  |  |
Interest | $ 511 | $ 591 |  |
Amortization of debt issue costs | 5 | 17 |  |
Amortization of discount | 1 | 2 |  |
Accretion | 67 | 50 |  |
Loss on debt extinguishment | 127 | 129 |  |
Finance income | (14) | (13) |  |
Total | 691 | 775 |  |
Interest paid, classified as financing activities | $ 425 | $ 513 |  |
4.1% Notes Due 2023 |  |  |  |
Disclosure of Detailed Information about Finance Income (Expense) [Line Items] |  |  |  |
Borrowings, interest rate (as percent) | 4.10% |  |  |
6.95% Notes Due 2019 |  |  |  |
Disclosure of Detailed Information about Finance Income (Expense) [Line Items] |  |  |  |
Borrowings, interest rate (as percent) | 6.95% |  |  |
2.5 Percent Notes Due 2018 |  |  |  |
Disclosure of Detailed Information about Finance Income (Expense) [Line Items] |  |  |  |
Borrowings, interest rate (as percent) |  | 2.50% | 2.50% |
4.4 Percent Notes Due 2021 |  |  |  |
Disclosure of Detailed Information about Finance Income (Expense) [Line Items] |  |  |  |
Borrowings, interest rate (as percent) |  | 4.40% |  |
4.95 Percent Notes Due 2020 |  |  |  |
Disclosure of Detailed Information about Finance Income (Expense) [Line Items] |  |  |  |
Borrowings, interest rate (as percent) |  | 4.95% |  |
6.8 Percent Notes Due 2019 |  |  |  |
Disclosure of Detailed Information about Finance Income (Expense) [Line Items] |  |  |  |
Borrowings, interest rate (as percent) |  | 6.80% |  | 6.80%
6.95 Percent Notes Due 2020 |  |  |  |
Disclosure of Detailed Information about Finance Income (Expense) [Line Items] |  |  |  |
Borrowings, interest rate (as percent) |  | 6.95% |  |
Interest rate hedges |  |  |  |
Disclosure of Detailed Information about Finance Income (Expense) [Line Items] |  |  |  |
Gain on interest rate hedges | $ (6) | $ (1) |  |

X
- Definition Accretion Expense1 + References No definition available. + Details
Name: | abx_AccretionExpense1
Namespace Prefix: | abx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amortization of Debt Issue Costs + References No definition available. + Details
Name: | abx_AmortizationofDebtIssueCosts
Namespace Prefix: | abx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amortization of discount + References No definition available. + Details
Name: | abx_AmortizationofDiscount
Namespace Prefix: | abx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition [Line Items] for Disclosure of Detailed Information about Finance Income (Expense) [Table] + References No definition available. + Details
Name: | abx_DisclosureofDetailedInformationaboutFinanceIncomeExpenseLineItems
Namespace Prefix: | abx_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Gain (loss) on extinguishment of borrowings + References No definition available. + Details
Name: | abx_GainLossonExtinguishmentofBorrowings
Namespace Prefix: | abx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The interest rate on borrowings. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 7 -IssueDate 2017-01-01 -Paragraph 7 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-01&anchor=para_7&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_BorrowingsInterestRate
Namespace Prefix: | ifrs-full_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The amount of income associated with interest and other financing activities of the entity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 85 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_85&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_FinanceIncome
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of income or cost associated with interest and other financing activities of the entity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 85 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_85&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_FinanceIncomeCost
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The hedging gains (losses) for hedge of group of items with offsetting risk positions. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Note Effective 2018-01-01 -Name IFRS -Number 7 -IssueDate 2017-01-01 -Paragraph 24C -Subparagraph b -Clause vi -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-01&anchor=para_24C_b_vi&doctype=Standard -URIDate 2017-03-09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Note Effective 2018-01-01 -Name IFRS -Number 9 -IssueDate 2017-01-01 -Paragraph 6.6.4 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=9&date=2017-03-01&anchor=para_6.6.4&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_HedgingGainsLossesForHedgeOfGroupOfItemsWithOffsettingRiskPositions
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of expense arising from interest. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2017-01-01 -Paragraph 23 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=8&date=2017-03-01&anchor=para_23_d&doctype=Standard -URIDate 2017-03-09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2017-01-01 -Paragraph 28 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=8&date=2017-03-01&anchor=para_28_e&doctype=Standard -URIDate 2017-03-09 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2017-01-01 -Paragraph B13 -Subparagraph f -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=12&date=2017-03-01&anchor=para_B13_f&doctype=Appendix&seq=2 -URIDate 2017-03-09 + Details
Name: | ifrs-full_InterestExpense
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The cash outflow for interest paid, classified as financing activities. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2017-01-01 -Paragraph 31 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2017-03-01&anchor=para_31&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_InterestPaidClassifiedAsFinancingActivities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=abx_FourPointOnePercentNotesDueTwoThousandTwentyThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=abx_SIxPointNinetyFivePercentNotesDueTwoThousandNineteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=abx_TwoPointFivePercentNotesDueTwoThousandEighteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=abx_FourPointFourPercentNotesDueTwoThousandTwentyOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=abx_FourPointNinetyFivePercentNotesDueTwoThousandTwentyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=abx_SixPointEightPercentNotesDueTwoThousandNineteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=abx_SIxPointNinetyFivePercentNotesDueTwoThousandTwentyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialAssetsAxis=ifrs-full_InterestRateSwapContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |