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SEGMENTED INFORMATION - Asset Allocation (Details) - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Disclosure of products and services [line items] |  |
Assets | $ 391,003 | $ 343,696
UNITED STATES |  |
Disclosure of products and services [line items] |  |
Assets | 172,952 | 159,684
Canada |  |
Disclosure of products and services [line items] |  |
Assets | 52,989 | 36,403
United Kingdom |  |
Disclosure of products and services [line items] |  |
Assets | 36,740 | 31,598
Brazil |  |
Disclosure of products and services [line items] |  |
Assets | 22,052 | 20,675
Other Europe |  |
Disclosure of products and services [line items] |  |
Assets | 32,065 | 22,267
Australia |  |
Disclosure of products and services [line items] |  |
Assets | 20,767 | 22,000
INDIA |  |
Disclosure of products and services [line items] |  |
Assets | 20,935 | 21,438
Colombia |  |
Disclosure of products and services [line items] |  |
Assets | 11,065 | 10,919
Other Asia |  |
Disclosure of products and services [line items] |  |
Assets | 12,866 | 9,343
Other |  |
Disclosure of products and services [line items] |  |
Assets | $ 8,572 | $ 9,369

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