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Fair Value Measurements (Tables) | 12 Months Ended
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Dec. 31, 2022
Fair Value Measurement [Abstract] |
Summary of Fair Values of Financial Assets Measured at Fair Value on Recurring Basis | The fair values of our financial assets and liabilities measured at fair value on a recurring basis at December 31, 2022 and 2021, are summarized in the following table:
(CAD$ in millions) |  | 2022 |  | 2021
|  | Level 1 |  | Level 2 |  | Level 3 |  | Total |  | Level 1 |  | Level 2 |  | Level 3 |  | Total
Financial assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash equivalents |  | $ | 1,624 |  |  | $ | — |  |  | $ | — |  |  | $ | 1,624 |  |  | $ | 790 |  |  | $ | — |  |  | $ | — |  |  | $ | 790 |
Marketable and other equity securities |  | 69 |  |  | — |  |  | 150 |  |  | 219 |  |  | 41 |  |  | — |  |  | 47 |  |  | 88 |
Debt securities |  | 159 |  |  | — |  |  | — |  |  | 159 |  |  | 104 |  |  | — |  |  | 1 |  |  | 105 |
Settlement receivables |  | — |  |  | 1,118 |  |  | — |  |  | 1,118 |  |  | — |  |  | 1,126 |  |  | — |  |  | 1,126 |
Derivative instruments and embedded derivatives |  | — |  |  | 74 |  |  | — |  |  | 74 |  |  | — |  |  | 78 |  |  | — |  |  | 78 |
|  | $ | 1,852 |  |  | $ | 1,192 |  |  | $ | 150 |  |  | $ | 3,194 |  |  | $ | 935 |  |  | $ | 1,204 |  |  | $ | 48 |  |  | $ | 2,187 |
Financial liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative instruments and embedded derivatives |  | $ | — |  |  | $ | 149 |  |  | $ | — |  |  | $ | 149 |  |  | $ | — |  |  | $ | 158 |  |  | $ | — |  |  | $ | 158 |
Settlement payables |  | — |  |  | 45 |  |  | — |  |  | 45 |  |  | — |  |  | 39 |  |  | — |  |  | 39 |
|  | $ | — |  |  | $ | 194 |  |  | $ | — |  |  | $ | 194 |  |  | $ | — |  |  | $ | 197 |  |  | $ | — |  |  | $ | 197 |
Summary of Fair Values of Financial Liabilities Measured at Fair Value on Recurring Basis | The fair values of our financial assets and liabilities measured at fair value on a recurring basis at December 31, 2022 and 2021, are summarized in the following table:
(CAD$ in millions) |  | 2022 |  | 2021
|  | Level 1 |  | Level 2 |  | Level 3 |  | Total |  | Level 1 |  | Level 2 |  | Level 3 |  | Total
Financial assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash equivalents |  | $ | 1,624 |  |  | $ | — |  |  | $ | — |  |  | $ | 1,624 |  |  | $ | 790 |  |  | $ | — |  |  | $ | — |  |  | $ | 790 |
Marketable and other equity securities |  | 69 |  |  | — |  |  | 150 |  |  | 219 |  |  | 41 |  |  | — |  |  | 47 |  |  | 88 |
Debt securities |  | 159 |  |  | — |  |  | — |  |  | 159 |  |  | 104 |  |  | — |  |  | 1 |  |  | 105 |
Settlement receivables |  | — |  |  | 1,118 |  |  | — |  |  | 1,118 |  |  | — |  |  | 1,126 |  |  | — |  |  | 1,126 |
Derivative instruments and embedded derivatives |  | — |  |  | 74 |  |  | — |  |  | 74 |  |  | — |  |  | 78 |  |  | — |  |  | 78 |
|  | $ | 1,852 |  |  | $ | 1,192 |  |  | $ | 150 |  |  | $ | 3,194 |  |  | $ | 935 |  |  | $ | 1,204 |  |  | $ | 48 |  |  | $ | 2,187 |
Financial liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative instruments and embedded derivatives |  | $ | — |  |  | $ | 149 |  |  | $ | — |  |  | $ | 149 |  |  | $ | — |  |  | $ | 158 |  |  | $ | — |  |  | $ | 158 |
Settlement payables |  | — |  |  | 45 |  |  | — |  |  | 45 |  |  | — |  |  | 39 |  |  | — |  |  | 39 |
|  | $ | — |  |  | $ | 194 |  |  | $ | — |  |  | $ | 194 |  |  | $ | — |  |  | $ | 197 |  |  | $ | — |  |  | $ | 197 |

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