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Long-Term Employee Benefit Liabilities (Tables) | 12 Months Ended
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Dec. 31, 2021
Long-Term Employee Benefit Liabilities | Long-term employee benefit liabilities consist of:
|  | 2021 |  |  | 2020 |
Defined benefit pension plans and other [a] |  | $ | 196 |  |  | $ | 216 |
Termination and long-term service arrangements [b] |  |  | 456 |  |  |  | 468 |
Retirement medical benefits plans [c] |  |  | 26 |  |  |  | 29 |
Other long-term employee benefits |  |  | 22 |  |  |  | 16 |
Long-term employee benefit obligations |  | $ | 700 |  |  | $ | 729 |
Summary of Weighted Average Significant Actuarial Assumptions Adopted in Measuring Company's Obligations and Cost | The weighted average significant actuarial assumptions adopted in measuring the Company’s obligations and costs are as follows:
|  | 2021 |  |  | 2020 |
Projected benefit obligation |  |  |  |  |  |  |  |
Discount rate |  |  | 2.4 | % |  |  | 2.1 | %
Rate of compensation increase |  |  | 2.7 | % |  |  | 2.4 | %
Net periodic benefit cost |  |  |  |  |  |  |  |
Discount rate |  |  | 2.3 | % |  |  | 2.8 | %
Rate of compensation increase |  |  | 2.6 | % |  |  | 2.4 | %
Expected return on plan assets |  |  | 4.1 | % |  |  | 4.6 | %
Schedule of Company's Defined Benefit Pension Plans | Information about the Company’s defined benefit pension plans is as follows:
|  | 2021 |  |  | 2020 |
Projected benefit obligation |  |  |  |  |  |  |  |
Beginning of year |  | $ | 731 |  |  | $ | 659 |
Current service cost |  |  | 10 |  |  |  | 10 |
Interest cost |  |  | 12 |  |  |  | 17 |
Actuarial (gains) losses and changes in actuarial assumptions |  |  | (37 | ) |  |  | 43 |
Benefits paid |  |  | (27 | ) |  |  | (23 | )
Divestiture |  |  | 11 |  |  |  | — |
Foreign exchange |  |  | (11 | ) |  |  | 25 |
End of year |  |  | 689 |  |  |  | 731 |
Plan assets at fair value [i] |  |  |  |  |  |  |  |
Beginning of year |  |  | 517 |  |  |  | 478 |
Return on plan assets |  |  | 25 |  |  |  | 42 |
Employer contributions |  |  | 12 |  |  |  | 9 |
Benefits paid |  |  | (23 | ) |  |  | (18 | )
Foreign exchange |  |  | 1 |  |  |  | 6 |
End of year |  |  | 532 |  |  |  | 517 |
Ending funded status – Plan deficit |  | $ | 157 |  |  | $ | 214 |
Amounts recorded in the consolidated balance sheet |  |  |  |  |  |  |  |
Non-current asset [note 12] |  | $ | (41 | ) |  | $ | (4 | )
Current liability |  |  | 2 |  |  |  | 2 |
Non-current liability |  |  | 196 |  |  |  | 216 |
Net amount |  | $ | 157 |  |  | $ | 214 |
Amounts recorded in accumulated other comprehensive income Unrecognized actuarial losses |  | $ | (112 | ) |  | $ | (158 | )
Net periodic benefit cost |  |  |  |  |  |  |  |
Current service cost |  | $ | 10 |  |  | $ | 10 |
Interest cost |  |  | 12 |  |  |  | 17 |
Return on plan assets |  |  | (21 | ) |  |  | (21 | )
Actuarial losses |  |  | 8 |  |  |  | 5 |
Net periodic benefit cost |  | $ | 9 |  |  | $ | 11 |
| [i] | The asset allocation of the Company’s defined benefit pension plans at December 31, 2021 and the target allocation for 2022 is as follows:
|  | 2022 |  |  | 2021 |
Fixed income securities |  |  | 55-80 | % |  |  | 63 | %
Equity securities |  |  | 25-50 | % |  |  | 33 | %
Cash and cash equivalents |  |  | 0-10 | % |  |  | 4 | %
|  |  | 100 | % |  |  | 100 | %
Future Benefit Payments |
[d] | Future benefit payments
|  | Defined benefit pension plans |  |  | Termination and long service arrangements |  |  | Retirement medical benefits plans |  |  | Total |
Expected employer contributions - 2022 |  | $ | 13 |  |  | $ | 11 |  |  | $ | 1 |  |  | $ | 25 |
Expected benefit payments: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2022 |  | $ | 26 |  |  | $ | 11 |  |  | $ | 1 |  |  | $ | 38 |
2023 |  |  | 25 |  |  |  | 14 |  |  |  | 1 |  |  |  | 40 |
2024 |  |  | 26 |  |  |  | 17 |  |  |  | 1 |  |  |  | 44 |
2025 |  |  | 27 |  |  |  | 19 |  |  |  | 2 |  |  |  | 48 |
2026 |  |  | 29 |  |  |  | 25 |  |  |  | 2 |  |  |  | 56 |
Thereafter |  |  | 162 |  |  |  | 131 |  |  |  | 8 |  |  |  | 301 |
|  | $ | 295 |  |  | $ | 217 |  |  | $ | 15 |  |  | $ | 527 |
Termination and Long-term Service Arrangements [Member] |
Summary of Weighted Average Significant Actuarial Assumptions Adopted in Measuring Company's Obligations and Cost | The weighted average significant actuarial assumptions adopted in measuring the Company’s projected termination and long-term service benefit obligations and net periodic benefit cost are as follows:
|  | 2021 |  |  | 2020 |
Discount rate |  |  | 2.4 | % |  |  | 2.1 | %
Rate of compensation increase |  |  | 3.1 | % |  |  | 3.1 | %
Schedule of Company's Defined Benefit Pension Plans | Information about the Company’s termination and long-term service arrangements is as follows:
|  | 2021 |  |  | 2020 |
Projected benefit obligation |  |  |  |  |  |  |  |
Beginning of year |  | $ | 478 |  |  | $ | 446 |
Current service cost |  |  | 23 |  |  |  | 32 |
Interest cost |  |  | 9 |  |  |  | 8 |
Actuarial losses (gains) and changes in actuarial assumptions |  |  | 10 |  |  |  | (13 | )
Benefits paid |  |  | (23 | ) |  |  | (27 | )
Foreign exchange |  |  | (30 | ) |  |  | 32 |
Ending funded status – Plan deficit |  | $ | 467 |  |  | $ | 478 |
Amounts recorded in the consolidated balance sheet |  |  |  |  |  |  |  |
Current liability |  | $ | 11 |  |  | $ | 10 |
Non-current liability |  |  | 456 |  |  |  | 468 |
Net amount |  | $ | 467 |  |  | $ | 478 |
Amounts recorded in accumulated other comprehensive income Unrecognized actuarial losses |  | $ | (112 | ) |  | $ | (106 | )
Net periodic benefit cost |  |  |  |  |  |  |  |
Current service cost |  | $ | 23 |  |  | $ | 32 |
Interest cost |  |  | 9 |  |  |  | 8 |
Actuarial losses |  |  | 4 |  |  |  | 6 |
Net periodic benefit cost |  | $ | 36 |  |  | $ | 46 |
Retirement Medical Benefits Plans [Member] |
Summary of Weighted Average Significant Actuarial Assumptions Adopted in Measuring Company's Obligations and Cost | The weighted average discount rates used in measuring the Company’s projected retirement medical benefit obligations and net periodic benefit cost are as follows:
|  | 2021 |  |  | 2020 |
Retirement medical benefit obligations |  |  | 2.8 | % |  |  | 2.4 | %
Net periodic benefit cost |  |  | 2.4 | % |  |  | 3.1 | %
Health care cost inflation |  |  | 6.4 | % |  |  | 6.6 | %
Schedule of Company's Defined Benefit Pension Plans | Information about the Company’s retirement medical benefits plans are as follows:
|  | 2021 |  |  | 2020 |
Projected benefit obligation |  |  |  |  |  |  |  |
Beginning of year |  | $ | 30 |  |  | $ | 29 |
Interest cost |  |  | 1 |  |  |  | 1 |
Actuarial (gains) losses and changes in actuarial assumptions |  |  | (3 | ) |  |  | 1 |
Benefits paid |  |  | (1 | ) |  |  | (1 | )
Ending funded status – Plan deficit |  | $ | 27 |  |  | $ | 30 |
Amounts recorded in the consolidated balance sheet |  |  |  |  |  |  |  |
Current liability |  | $ | 1 |  |  | $ | 1 |
Non-current liability |  |  | 26 |  |  |  | 29 |
Net amount |  | $ | 27 |  |  | $ | 30 |
Amounts recorded in accumulated other comprehensive income Unrecognized actuarial gains |  |  | 10 |  |  |  | 6 |
Total accumulated other comprehensive income |  | $ | 10 |  |  | $ | 6 |
Net periodic benefit cost |  |  |  |  |  |  |  |
Interest cost |  | $ | 1 |  |  | $ | 1 |
Actuarial gains |  |  | (1 | ) |  |  | (1 | )
Net periodic benefit cost |  | $ | — |  |  | $ | — |

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