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v3.19.3.a.u2

Commitments and Contingencies - Commitments (Details) $ in Millions, $ in Millions | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | ---
Dec. 31, 2019 CAD ($) | Dec. 31, 2018 CAD ($) | Dec. 31, 2017 CAD ($) | Dec. 31, 2019 USD ($) | Jan. 01, 2019 CAD ($) | Dec. 17, 2018 | Jul. 30, 2015 USD ($)
Disclosure of Commitments [Line Items] |  |  |  |  |  |  |
Coal supply and mining agreements | $ 217 |  |  |  |  |  |
Long-term service agreements | 150 |  |  |  |  |  |
Non-cancellable operating leases | 77 | $ 80 |  |  | $ 83 |  |
Growth | 1,268 |  |  |  |  |  |
TransAlta Energy Transition Bill | 24 |  |  |  |  |  | $ 55
Total | 3,879 |  |  |  |  |  |
Sublease payments received (amounts less than) |  | $ 1 | $ 1 |  |  |  |
Funded portion of Energy Bill commitment |  |  |  | $ 37 |  |  |
Litigation settlement, amount awarded from other party | 27 |  |  |  |  |  |
Natural gas, transportation and other contracts |  |  |  |  |  |  |
Disclosure of Commitments [Line Items] |  |  |  |  |  |  |
Purchase obligations | 2,122 |  |  |  |  |  |
Transmission |  |  |  |  |  |  |
Disclosure of Commitments [Line Items] |  |  |  |  |  |  |
Purchase obligations | 21 |  |  |  |  |  |
2020 |  |  |  |  |  |  |
Disclosure of Commitments [Line Items] |  |  |  |  |  |  |
Coal supply and mining agreements | 147 |  |  |  |  |  |
Long-term service agreements | 50 |  |  |  |  |  |
Non-cancellable operating leases | 4 |  |  |  |  |  |
Growth | 535 |  |  |  |  |  |
TransAlta Energy Transition Bill | 6 |  |  |  |  |  |
Total | 876 |  |  |  |  |  |
2020 | Natural gas, transportation and other contracts |  |  |  |  |  |  |
Disclosure of Commitments [Line Items] |  |  |  |  |  |  |
Purchase obligations | 125 |  |  |  |  |  |
2020 | Transmission |  |  |  |  |  |  |
Disclosure of Commitments [Line Items] |  |  |  |  |  |  |
Purchase obligations | 9 |  |  |  |  |  |
2021 |  |  |  |  |  |  |
Disclosure of Commitments [Line Items] |  |  |  |  |  |  |
Coal supply and mining agreements | 16 |  |  |  |  |  |
Long-term service agreements | 22 |  |  |  |  |  |
Non-cancellable operating leases | 2 |  |  |  |  |  |
Growth | 254 |  |  |  |  |  |
TransAlta Energy Transition Bill | 6 |  |  |  |  |  |
Total | 430 |  |  |  |  |  |
2021 | Natural gas, transportation and other contracts |  |  |  |  |  |  |
Disclosure of Commitments [Line Items] |  |  |  |  |  |  |
Purchase obligations | 125 |  |  |  |  |  |
2021 | Transmission |  |  |  |  |  |  |
Disclosure of Commitments [Line Items] |  |  |  |  |  |  |
Purchase obligations | 5 |  |  |  |  |  |
2022 |  |  |  |  |  |  |
Disclosure of Commitments [Line Items] |  |  |  |  |  |  |
Coal supply and mining agreements | 16 |  |  |  |  |  |
Long-term service agreements | 32 |  |  |  |  |  |
Non-cancellable operating leases | 2 |  |  |  |  |  |
Growth | 196 |  |  |  |  |  |
TransAlta Energy Transition Bill | 6 |  |  |  |  |  |
Total | 376 |  |  |  |  |  |
2022 | Natural gas, transportation and other contracts |  |  |  |  |  |  |
Disclosure of Commitments [Line Items] |  |  |  |  |  |  |
Purchase obligations | 120 |  |  |  |  |  |
2022 | Transmission |  |  |  |  |  |  |
Disclosure of Commitments [Line Items] |  |  |  |  |  |  |
Purchase obligations | 4 |  |  |  |  |  |
2023 |  |  |  |  |  |  |
Disclosure of Commitments [Line Items] |  |  |  |  |  |  |
Coal supply and mining agreements | 16 |  |  |  |  |  |
Long-term service agreements | 17 |  |  |  |  |  |
Non-cancellable operating leases | 2 |  |  |  |  |  |
Growth | 270 |  |  |  |  |  |
TransAlta Energy Transition Bill | 6 |  |  |  |  |  |
Total | 442 |  |  |  |  |  |
2023 | Natural gas, transportation and other contracts |  |  |  |  |  |  |
Disclosure of Commitments [Line Items] |  |  |  |  |  |  |
Purchase obligations | 128 |  |  |  |  |  |
2023 | Transmission |  |  |  |  |  |  |
Disclosure of Commitments [Line Items] |  |  |  |  |  |  |
Purchase obligations | 3 |  |  |  |  |  |
2024 |  |  |  |  |  |  |
Disclosure of Commitments [Line Items] |  |  |  |  |  |  |
Coal supply and mining agreements | 8 |  |  |  |  |  |
Long-term service agreements | 15 |  |  |  |  |  |
Non-cancellable operating leases | 3 |  |  |  |  |  |
Growth | 13 |  |  |  |  |  |
TransAlta Energy Transition Bill | 0 |  |  |  |  |  |
Total | 170 |  |  |  |  |  |
2024 | Natural gas, transportation and other contracts |  |  |  |  |  |  |
Disclosure of Commitments [Line Items] |  |  |  |  |  |  |
Purchase obligations | 131 |  |  |  |  |  |
2024 | Transmission |  |  |  |  |  |  |
Disclosure of Commitments [Line Items] |  |  |  |  |  |  |
Purchase obligations | 0 |  |  |  |  |  |
2025 |  |  |  |  |  |  |
Disclosure of Commitments [Line Items] |  |  |  |  |  |  |
Coal supply and mining agreements | 14 |  |  |  |  |  |
Long-term service agreements | 14 |  |  |  |  |  |
Non-cancellable operating leases | 64 |  |  |  |  |  |
Growth | 0 |  |  |  |  |  |
TransAlta Energy Transition Bill | 0 |  |  |  |  |  |
Total | 1,585 |  |  |  |  |  |
2025 | Natural gas, transportation and other contracts |  |  |  |  |  |  |
Disclosure of Commitments [Line Items] |  |  |  |  |  |  |
Purchase obligations | 1,493 |  |  |  |  |  |
2025 | Transmission |  |  |  |  |  |  |
Disclosure of Commitments [Line Items] |  |  |  |  |  |  |
Purchase obligations | 0 |  |  |  |  |  |
Line loss rule proceeding |  |  |  |  |  |  |
Disclosure of Commitments [Line Items] |  |  |  |  |  |  |
Estimated financial effect of contingent liabilities | $ 12 |  |  |  |  |  |
Tidewater Brazeau River Pipeline | Tidewater |  |  |  |  |  |  |
Disclosure of Commitments [Line Items] |  |  |  |  |  |  |
Future option to acquire pipeline, ownership percentage |  |  |  |  |  | 50.00% |

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- Definition The amount of capital commitments for which the entity has entered into a contract. [Refer: Capital commitments] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_112_c&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The amount of income from subleasing right-of-use assets. Sublease is a transaction for which an underlying asset is re-leased by a lessee (‘intermediate lessor’) to a third party, and the lease (‘head lease’) between the head lessor and lessee remains in effect. [Refer: Right-of-use assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Note Effective 2019-01-01 -Name IFRS -Number 16 -IssueDate 2018-01-01 -Paragraph 53 -Subparagraph f -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=16&date=2018-03-01&anchor=para_53_f&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The amount of future minimum lease payments payable under non-cancellable operating leases. Minimum lease payments are payments over the lease term that the lessee is or can be required to make, excluding contingent rent, costs for services and taxes to be paid by, and reimbursed to, the lessor, together with: (a) for a lessee, any amounts guaranteed by the lessee or by a party related to the lessee; or (b) for a lessor, any residual value guaranteed to the lessor by: (i) the lessee; (ii) a party related to the lessee; or (iii) a third party unrelated to the lessor that is financially capable of discharging the obligations under the guarantee. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Note Expiry date 2019-01-01 -Name IAS -Number 17 -IssueDate 2018-01-01 -Paragraph 35 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=17&date=2018-03-02&anchor=para_35_a&doctype=Standard&book=b -URIDate 2018-03-16 + Details
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- Definition Commitment for Energy Bill Initiatives + References No definition available. + Details
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- Definition Litigation Settlement, Amount Awarded From Other Party1 + References No definition available. + Details
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- Definition Noncurrent Prepayments for Energy Bill Commitments + References No definition available. + Details
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- Definition Option to Acquire Pipeline, Ownership Percentage + References No definition available. + Details
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