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MANAGEMENT OF RISKS ARISING FROM HOLDING FINANCIAL INSTRUMENTS - Narrative (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
Interest rate risk |  |
Disclosure of detailed information about financial instruments [line items] |  |
Basis point increase in interest rates | 0.50 |
Net income impact of a 50 basis-point increase in interest rate on floating rate financial assets and liabilities | $ 283.0 | $ 156.0
Net income impact of 50 basis point increase in yield curve on financial assets and liabilities | 101.0 | 137.0
Other comprehensive income impact of 50 basis point increase in yield curve on financial assets and liabilities | $ 318.0 | 363.0
Currency risk |  |
Disclosure of detailed information about financial instruments [line items] |  |
Percentage of increase in U.S dollar against other currencies | 1.00% |
Impact of 1% increase in U.S. dollar against foreign currencies on unhedged financial instruments | $ 109.0 | 117.0
Impact of 1% increase in U.S. dollar against foreign currencies on hedged financial instruments | $ 509.0 | 235.0
Equity price risk |  |
Disclosure of detailed information about financial instruments [line items] |  |
Percentage Of Increase (Decrease) In Market Price Of Equity Securities And Equity Derivatives | 5.00% |
Impact on Net Income as a Result of a Percentage Decrease Equity Securities | $ 303.0 | 186.0
Impact on Other Comprehensive Income as a Result of a Percentage Decrease Equity Securities | $ 122.0 | 161.0
Percentage change in the common equity price | 5.00% |
Increase in compensation liability and expense | $ 98.0 | 69.0
Increase (decrease) in equity derivatives used for compensation hedging from a 5% change in the common equity price of the company | 116.0 | 78.0
Amount to offset increase in compensation expense | 98.0 | 69.0
Other comprehensive income impact of equity derivatives used for compensation hedging | $ 18.0 | 9.0
Other price risk |  |
Disclosure of detailed information about financial instruments [line items] |  |
Percentage increase in energy prices | 5.00% |
Impact on net income from a 5% decrease in energy prices | $ 49.0 | 16.0
Impact on other comprehensive income from a 5% decrease in energy prices | $ 27.0 | $ 19.0

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