PERSONNEL EXPENSES AND DEFERRED EMPLOYEE BENEFITS - Target Asset Allocation for the Funded Defined Benefit Pension Plans (Details)	Dec. 31, 2021
Canada
Disclosure of fair value of plan assets [line items]
Equity Securities (in percent)	35.00%
Fixed Income Securities (including cash) (in percent)	55.00%
Real Estate (in percent)	5.00%
Other (in percent)	5.00%
Total (in percent)	100.00%
Brazil
Disclosure of fair value of plan assets [line items]
Equity Securities (in percent)	6.00%
Fixed Income Securities (including cash) (in percent)	87.00%
Real Estate (in percent)	1.00%
Other (in percent)	6.00%
Total (in percent)	100.00%
Europe
Disclosure of fair value of plan assets [line items]
Equity Securities (in percent)	2.00%
Fixed Income Securities (including cash) (in percent)	68.00%
Real Estate (in percent)	0.00%
Other (in percent)	30.00%
Total (in percent)	100.00%

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Equity Instruments, Amount Contributed To Fair Value Of Plan Assets, Asset Target Allocation Percentage

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Other Instruments, Amount Contributed To Fair Value Of Plan Assets, Asset Target Allocation Percentage

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Plan Assets At Fair Value, Asset Target Allocation Percentage

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Real Estate, Amount Contributed To Fair Value Of Plan Assets, Asset Target Allocation Percentage

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