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ACCOUNTS PAYABLE AND OTHER (Details) (CAD) In Millions, unless otherwise specified | Dec. 31, 2012 | Dec. 31, 2011
--- | --- | ---
ACCOUNTS PAYABLE AND OTHER |  |
Operating accrued liabilities | 2,729 | 2,751
Trade payables | 123 | 176
Construction payables | 568 | 327
Current derivative liabilities | 1,075 | 880
Contractor holdbacks | 86 | 46
Taxes payable | 206 | 339
Security deposits | 69 | 81
Current deferred income taxes |  | 7
Other | 196 | 146
Accounts payable and other liabilities | 5,052 | 4,753

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