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Risk Management - Significant Judgements and Estimates (Details) - 12 months ended Dec. 31, 2024 ¥ in Millions, ¥ in Millions, $ in Millions, $ in Millions | CAD ($) $ / bbl | USD ($) $ / bbl | JPY (¥) $ / bbl | CNY (¥) $ / bbl
--- | --- | --- | --- | ---
Canada |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Gross Domestic Product (GDP), in U.S. $ billions | $ | $ 1,983 |  |  |
Unemployment rate | 6.70% | 6.70% | 6.70% | 6.70%
NYMEX Light Sweet Crude Oil, in U.S. dollars, per barrel | 76.0 | 76.0 | 76.0 | 76.0
Canada | Base case scenario | Next 12 months |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Gross Domestic Product (GDP), in U.S. $ billions | 1.80% | 1.80% | 1.80% | 1.80%
Unemployment rate | 6.80% | 6.80% | 6.80% | 6.80%
NYMEX Light Sweet Crude Oil, in U.S. dollars, per barrel | 75.0 | 75.0 | 75.0 | 75.0
Canada | Base case scenario | 1 to 5 years |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Gross Domestic Product (GDP), in U.S. $ billions | 2.00% | 2.00% | 2.00% | 2.00%
Unemployment rate | 6.30% | 6.30% | 6.30% | 6.30%
NYMEX Light Sweet Crude Oil, in U.S. dollars, per barrel | 72.0 | 72.0 | 72.0 | 72.0
Canada | Upside scenario | Next 12 months |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Gross Domestic Product (GDP), in U.S. $ billions | 3.30% | 3.30% | 3.30% | 3.30%
Unemployment rate | 6.50% | 6.50% | 6.50% | 6.50%
NYMEX Light Sweet Crude Oil, in U.S. dollars, per barrel | 79.0 | 79.0 | 79.0 | 79.0
Canada | Upside scenario | 1 to 5 years |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Gross Domestic Product (GDP), in U.S. $ billions | 2.30% | 2.30% | 2.30% | 2.30%
Unemployment rate | 5.80% | 5.80% | 5.80% | 5.80%
NYMEX Light Sweet Crude Oil, in U.S. dollars, per barrel | 74.0 | 74.0 | 74.0 | 74.0
Canada | Downside scenario 1 | Next 12 months |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Gross Domestic Product (GDP), in U.S. $ billions | (2.00%) | (2.00%) | (2.00%) | (2.00%)
Unemployment rate | 8.10% | 8.10% | 8.10% | 8.10%
NYMEX Light Sweet Crude Oil, in U.S. dollars, per barrel | 59.0 | 59.0 | 59.0 | 59.0
Canada | Downside scenario 1 | 1 to 5 years |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Gross Domestic Product (GDP), in U.S. $ billions | 2.30% | 2.30% | 2.30% | 2.30%
Unemployment rate | 8.20% | 8.20% | 8.20% | 8.20%
NYMEX Light Sweet Crude Oil, in U.S. dollars, per barrel | 66.0 | 66.0 | 66.0 | 66.0
Canada | Downside scenario 2 | Next 12 months |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Gross Domestic Product (GDP), in U.S. $ billions | (3.90%) | (3.90%) | (3.90%) | (3.90%)
Unemployment rate | 8.50% | 8.50% | 8.50% | 8.50%
NYMEX Light Sweet Crude Oil, in U.S. dollars, per barrel | 50.0 | 50.0 | 50.0 | 50.0
Canada | Downside scenario 2 | 1 to 5 years |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Gross Domestic Product (GDP), in U.S. $ billions | 2.20% | 2.20% | 2.20% | 2.20%
Unemployment rate | 10.00% | 10.00% | 10.00% | 10.00%
NYMEX Light Sweet Crude Oil, in U.S. dollars, per barrel | 61.0 | 61.0 | 61.0 | 61.0
U.S. |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Gross Domestic Product (GDP), in U.S. $ billions | $ |  | $ 23,534 |  |
Unemployment rate | 4.20% | 4.20% | 4.20% | 4.20%
7-10 Year BBB U.S. Corporate Index | 5.50% | 5.50% | 5.50% | 5.50%
U.S. | Base case scenario | Next 12 months |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Gross Domestic Product (GDP), in U.S. $ billions | 2.10% | 2.10% | 2.10% | 2.10%
Unemployment rate | 4.10% | 4.10% | 4.10% | 4.10%
7-10 Year BBB U.S. Corporate Index | 6.10% | 6.10% | 6.10% | 6.10%
U.S. | Base case scenario | 1 to 5 years |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Gross Domestic Product (GDP), in U.S. $ billions | 2.20% | 2.20% | 2.20% | 2.20%
Unemployment rate | 4.00% | 4.00% | 4.00% | 4.00%
7-10 Year BBB U.S. Corporate Index | 6.10% | 6.10% | 6.10% | 6.10%
U.S. | Upside scenario | Next 12 months |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Gross Domestic Product (GDP), in U.S. $ billions | 3.60% | 3.60% | 3.60% | 3.60%
Unemployment rate | 3.30% | 3.30% | 3.30% | 3.30%
7-10 Year BBB U.S. Corporate Index | 5.90% | 5.90% | 5.90% | 5.90%
U.S. | Upside scenario | 1 to 5 years |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Gross Domestic Product (GDP), in U.S. $ billions | 2.30% | 2.30% | 2.30% | 2.30%
Unemployment rate | 3.30% | 3.30% | 3.30% | 3.30%
7-10 Year BBB U.S. Corporate Index | 6.20% | 6.20% | 6.20% | 6.20%
U.S. | Downside scenario 1 | Next 12 months |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Gross Domestic Product (GDP), in U.S. $ billions | (2.00%) | (2.00%) | (2.00%) | (2.00%)
Unemployment rate | 7.30% | 7.30% | 7.30% | 7.30%
7-10 Year BBB U.S. Corporate Index | 5.40% | 5.40% | 5.40% | 5.40%
U.S. | Downside scenario 1 | 1 to 5 years |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Gross Domestic Product (GDP), in U.S. $ billions | 2.70% | 2.70% | 2.70% | 2.70%
Unemployment rate | 6.10% | 6.10% | 6.10% | 6.10%
7-10 Year BBB U.S. Corporate Index | 5.60% | 5.60% | 5.60% | 5.60%
U.S. | Downside scenario 2 | Next 12 months |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Gross Domestic Product (GDP), in U.S. $ billions | (4.20%) | (4.20%) | (4.20%) | (4.20%)
Unemployment rate | 7.80% | 7.80% | 7.80% | 7.80%
7-10 Year BBB U.S. Corporate Index | 6.00% | 6.00% | 6.00% | 6.00%
U.S. | Downside scenario 2 | 1 to 5 years |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Gross Domestic Product (GDP), in U.S. $ billions | 2.50% | 2.50% | 2.50% | 2.50%
Unemployment rate | 8.10% | 8.10% | 8.10% | 8.10%
7-10 Year BBB U.S. Corporate Index | 5.40% | 5.40% | 5.40% | 5.40%
Japan |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Gross Domestic Product (GDP), in U.S. $ billions | ¥ |  |  | ¥ 563,281 |
Unemployment rate | 2.50% | 2.50% | 2.50% | 2.50%
Japan | Base case scenario | Next 12 months |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Gross Domestic Product (GDP), in U.S. $ billions | 0.90% | 0.90% | 0.90% | 0.90%
Unemployment rate | 2.50% | 2.50% | 2.50% | 2.50%
Japan | Base case scenario | 1 to 5 years |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Gross Domestic Product (GDP), in U.S. $ billions | 0.70% | 0.70% | 0.70% | 0.70%
Unemployment rate | 2.20% | 2.20% | 2.20% | 2.20%
Japan | Upside scenario | Next 12 months |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Gross Domestic Product (GDP), in U.S. $ billions | 2.80% | 2.80% | 2.80% | 2.80%
Unemployment rate | 2.40% | 2.40% | 2.40% | 2.40%
Japan | Upside scenario | 1 to 5 years |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Gross Domestic Product (GDP), in U.S. $ billions | 0.80% | 0.80% | 0.80% | 0.80%
Unemployment rate | 2.10% | 2.10% | 2.10% | 2.10%
Japan | Downside scenario 1 | Next 12 months |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Gross Domestic Product (GDP), in U.S. $ billions | (3.60%) | (3.60%) | (3.60%) | (3.60%)
Unemployment rate | 3.10% | 3.10% | 3.10% | 3.10%
Japan | Downside scenario 1 | 1 to 5 years |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Gross Domestic Product (GDP), in U.S. $ billions | 1.00% | 1.00% | 1.00% | 1.00%
Unemployment rate | 2.90% | 2.90% | 2.90% | 2.90%
Japan | Downside scenario 2 | Next 12 months |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Gross Domestic Product (GDP), in U.S. $ billions | (7.10%) | (7.10%) | (7.10%) | (7.10%)
Unemployment rate | 3.20% | 3.20% | 3.20% | 3.20%
Japan | Downside scenario 2 | 1 to 5 years |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Gross Domestic Product (GDP), in U.S. $ billions | 1.60% | 1.60% | 1.60% | 1.60%
Unemployment rate | 3.50% | 3.50% | 3.50% | 3.50%
Hong Kong |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Unemployment rate | 3.00% | 3.00% | 3.00% | 3.00%
Hang Seng Index and FTSE Xinhua A200 Index | 19,448 | 19,448 | 19,448 | 19,448
Hong Kong | Base case scenario | Next 12 months |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Unemployment rate | 2.90% | 2.90% | 2.90% | 2.90%
Hang Seng Index and FTSE Xinhua A200 Index | 7.00% | 7.00% | 7.00% | 7.00%
Hong Kong | Base case scenario | 1 to 5 years |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Unemployment rate | 3.00% | 3.00% | 3.00% | 3.00%
Hang Seng Index and FTSE Xinhua A200 Index | 4.10% | 4.10% | 4.10% | 4.10%
Hong Kong | Upside scenario | Next 12 months |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Unemployment rate | 2.50% | 2.50% | 2.50% | 2.50%
Hang Seng Index and FTSE Xinhua A200 Index | 18.10% | 18.10% | 18.10% | 18.10%
Hong Kong | Upside scenario | 1 to 5 years |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Unemployment rate | 2.70% | 2.70% | 2.70% | 2.70%
Hang Seng Index and FTSE Xinhua A200 Index | 3.70% | 3.70% | 3.70% | 3.70%
Hong Kong | Downside scenario 1 | Next 12 months |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Unemployment rate | 4.10% | 4.10% | 4.10% | 4.10%
Hang Seng Index and FTSE Xinhua A200 Index | (19.70%) | (19.70%) | (19.70%) | (19.70%)
Hong Kong | Downside scenario 1 | 1 to 5 years |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Unemployment rate | 3.80% | 3.80% | 3.80% | 3.80%
Hang Seng Index and FTSE Xinhua A200 Index | 9.90% | 9.90% | 9.90% | 9.90%
Hong Kong | Downside scenario 2 | Next 12 months |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Unemployment rate | 4.60% | 4.60% | 4.60% | 4.60%
Hang Seng Index and FTSE Xinhua A200 Index | (37.00%) | (37.00%) | (37.00%) | (37.00%)
Hong Kong | Downside scenario 2 | 1 to 5 years |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Unemployment rate | 4.60% | 4.60% | 4.60% | 4.60%
Hang Seng Index and FTSE Xinhua A200 Index | 13.50% | 13.50% | 13.50% | 13.50%
China |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Gross Domestic Product (GDP), in U.S. $ billions | ¥ |  |  |  | ¥ 114,931
Hang Seng Index and FTSE Xinhua A200 Index | 10,938 | 10,938 | 10,938 | 10,938
China | Base case scenario | Next 12 months |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Gross Domestic Product (GDP), in U.S. $ billions | 4.00% | 4.00% | 4.00% | 4.00%
Hang Seng Index and FTSE Xinhua A200 Index | (0.60%) | (0.60%) | (0.60%) | (0.60%)
China | Base case scenario | 1 to 5 years |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Gross Domestic Product (GDP), in U.S. $ billions | 4.10% | 4.10% | 4.10% | 4.10%
Hang Seng Index and FTSE Xinhua A200 Index | 4.80% | 4.80% | 4.80% | 4.80%
China | Upside scenario | Next 12 months |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Gross Domestic Product (GDP), in U.S. $ billions | 6.50% | 6.50% | 6.50% | 6.50%
Hang Seng Index and FTSE Xinhua A200 Index | 13.80% | 13.80% | 13.80% | 13.80%
China | Upside scenario | 1 to 5 years |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Gross Domestic Product (GDP), in U.S. $ billions | 4.30% | 4.30% | 4.30% | 4.30%
Hang Seng Index and FTSE Xinhua A200 Index | 2.80% | 2.80% | 2.80% | 2.80%
China | Downside scenario 1 | Next 12 months |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Gross Domestic Product (GDP), in U.S. $ billions | (3.00%) | (3.00%) | (3.00%) | (3.00%)
Hang Seng Index and FTSE Xinhua A200 Index | (31.10%) | (31.10%) | (31.10%) | (31.10%)
China | Downside scenario 1 | 1 to 5 years |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Gross Domestic Product (GDP), in U.S. $ billions | 4.60% | 4.60% | 4.60% | 4.60%
Hang Seng Index and FTSE Xinhua A200 Index | 11.70% | 11.70% | 11.70% | 11.70%
China | Downside scenario 2 | Next 12 months |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Gross Domestic Product (GDP), in U.S. $ billions | (5.70%) | (5.70%) | (5.70%) | (5.70%)
Hang Seng Index and FTSE Xinhua A200 Index | (40.50%) | (40.50%) | (40.50%) | (40.50%)
China | Downside scenario 2 | 1 to 5 years |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |
Gross Domestic Product (GDP), in U.S. $ billions | 3.90% | 3.90% | 3.90% | 3.90%
Hang Seng Index and FTSE Xinhua A200 Index | 13.50% | 13.50% | 13.50% | 13.50%

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