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Related Party Transactions | 12 Months Ended
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Dec. 31, 2021
Related Party [Abstract] |
Related Party Transactions | Related-Party Transactions Details of the Company’s principal operating subsidiaries at Dec. 31, 2021, are as follows:
Subsidiary | Country | Ownership (per cent) | Principal activity
TransAlta Generation Partnership | Canada | 100 | Generation and sale of electricity
TransAlta Cogeneration, L.P. | Canada | 50.01 | Generation and sale of electricity
TransAlta Centralia Generation, LLC | US | 100 | Generation and sale of electricity
TransAlta Energy Marketing Corp. | Canada | 100 | Energy marketing
TransAlta Energy Marketing (U.S.), Inc. | US | 100 | Energy marketing
TransAlta Energy (Australia), Pty Ltd. | Australia | 100 | Generation and sale of electricity
TransAlta Renewables Inc. | Canada | 60.1 | Generation and sale of electricity
Associate or joint venture | Country | Ownership (per cent) | Principal activity
SP Skookumchuck Investment, LLC | US | 49 | Generation and sale of electricity
EMG International, LLC | US | 30 | Wastewater treatment and biogas fuel to generate electricity
Transactions between the Company and its subsidiaries have been eliminated on consolidation and are not disclosed. Associates and joint ventures have been equity accounted for by the Company. A.Transactions with Key Management Personnel TransAlta’s key management personnel include the President and Chief Executive Officer ("CEO") and members of the senior management team that report directly to the President and CEO, and the members of the Board. Key management personnel compensation is as follows:
Year ended Dec. 31 | 2021 | 2020 | 2019
Total compensation | 30 |  | 27 |  | 30 |
Comprised of: |  |  |
Short-term employee benefits | 14 |  | 12 |  | 13 |
Post-employment benefits | 1 |  | 2 |  | 2 |
Termination benefits | — |  | — |  | 2 |
Share-based payments | 15 |  | 13 |  | 13 |

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- Definition The entire disclosure for related parties. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 24 -IssueDate 2021-01-01 -Section Disclosures -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=24&code=ifrs-tx-2021-en-r&doctype=Standard&dita_xref=IAS24_g13-24_TI -URIDate 2021-03-24 + Details
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