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SHARE CAPITAL (Details) (Preference shares) In Millions, except Per Share data, unless otherwise specified | 6 Months Ended | 12 Months Ended | 6 Months Ended |  | 6 Months Ended |  | 6 Months Ended |  | 6 Months Ended |  | 6 Months Ended |  | 6 Months Ended |  |  | 6 Months Ended |  |  | 6 Months Ended |  | 6 Months Ended |  | 6 Months Ended |  | 6 Months Ended |  | 6 Months Ended
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Jun. 30, 2013 USD ($) item | Jun. 30, 2013 CAD | Dec. 31, 2012 CAD | Jun. 30, 2013 Preference Shares, Series A CAD | Dec. 31, 2012 Preference Shares, Series A CAD | Jun. 30, 2013 Preference Shares, Series B CAD | Dec. 31, 2012 Preference Shares, Series B CAD | Jun. 30, 2013 Preference Shares, Series C | Jun. 30, 2013 Preference Shares, Series D CAD | Dec. 31, 2012 Preference Shares, Series D CAD | Jun. 30, 2013 Preference Shares, Series E | Jun. 30, 2013 Preference Shares, Series F CAD | Dec. 31, 2012 Preference Shares, Series F CAD | Jun. 30, 2013 Preference Shares, Series G | Jun. 30, 2013 Preference Shares, Series H CAD | Dec. 31, 2012 Preference Shares, Series H CAD | Jun. 30, 2013 Preference Shares, Series I | Jun. 30, 2013 Preference Shares, Series J USD ($) | Jun. 30, 2013 Preference Shares, Series J CAD | Dec. 31, 2012 Preference Shares, Series J CAD | Jun. 30, 2013 Preference Shares, Series K | Jun. 30, 2013 Preference Shares, Series L USD ($) | Jun. 30, 2013 Preference Shares, Series L CAD | Dec. 31, 2012 Preference Shares, Series L CAD | Jun. 30, 2013 Preference Shares, Series M | Jun. 30, 2013 Preference Shares, Series N CAD | Dec. 31, 2012 Preference Shares, Series N CAD | Jun. 30, 2013 Preference Shares, Series O | Jun. 30, 2013 Preference Shares, Series P CAD | Dec. 31, 2012 Preference Shares, Series P CAD | Jun. 30, 2013 Preference Shares, Series Q | Jun. 30, 2013 Preference Shares, Series R CAD | Dec. 31, 2012 Preference Shares, Series R CAD | Jun. 30, 2013 Preference Shares, Series S | Jun. 30, 2013 Preference Shares, Series 1 USD ($) | Jun. 30, 2013 Preference Shares, Series 1 CAD | Jun. 30, 2013 Preference Shares, Series 2 | Jun. 30, 2013 Preference Shares, Series 3 CAD | Jun. 30, 2013 Preference Shares, Series 4
SHARES |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance Costs |  | (97) | (78) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at end of year, Number of Shares |  |  |  | 5 | 5 | 20 | 20 |  | 18 | 18 |  | 20 | 20 |  | 14 | 14 |  | 8 |  | 8 |  | 16 |  | 16 |  | 18 | 18 |  | 16 | 16 |  | 16 | 16 |  | 16 |  |  | 24 |
Balance at end of year, Amount |  | 4,699 | 3,707 | 125 | 125 | 500 | 500 |  | 450 | 450 |  | 500 | 500 |  | 350 | 350 |  |  | 199 | 199 |  |  | 411 | 411 |  | 450 | 450 |  | 400 | 400 |  | 400 | 400 |  |  | 411 |  | 600 |
Characteristics of the preference shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Initial Yield (as a percent) |  |  |  | 5.50% |  | 4.00% |  |  | 4.00% |  |  | 4.00% |  |  | 4.00% |  |  | 4.00% |  |  |  | 4.00% |  |  |  | 4.00% |  |  | 4.00% |  |  | 4.00% |  |  | 4.00% |  |  | 4.00% |
Yearly dividend per share (in dollars per share) |  |  |  | 1.375 |  | 1.000 |  |  | 1.000 |  |  | 1.000 |  |  | 1.000 |  |  | $ 1.000 |  |  |  | $ 1.000 |  |  |  | 1.000 |  |  | 1.000 |  |  | 1.000 |  |  | $ 1.000 |  |  | 1.000 |
Per Share Base Redemption Value (in dollars per shares) |  |  |  | 25 |  | 25 |  |  | 25 |  |  | 25 |  |  | 25 |  |  | $ 25 |  |  |  | $ 25 |  |  |  | 25 |  |  | 25 |  |  | 25 |  |  | $ 25 |  |  | 25 |
Number of recurring anniversary after the redemption option date on which the entity may redeem preferred shares | 5 | 5 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of recurring anniversary after the conversion option date on which the entity may convert preferred shares | 5 | 5 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Quarterly floating rate cumulative dividends per share calculation, base multiplier (in dollars per share) | $ 25 | 25 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Quarterly floating rate cumulative dividends per share calculation, period of calendar year | 365 days | 365 days |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Quarterly floating rate cumulative dividends per share calculation, maturity period of Government of Canada treasury bill | 90 days | 90 days |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Quarterly floating rate cumulative dividends per share calculation, maturity period of Government of US treasury bill | 90 days | 90 days |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Quarterly floating rate cumulative dividends per share calculation, spread on Government of Canada treasury bill rate (as a percent) |  |  |  |  |  |  |  | 2.40% |  |  | 2.40% |  |  | 2.50% |  |  | 2.10% |  |  |  |  |  |  |  |  |  |  | 2.70% |  |  | 2.50% |  |  | 2.50% |  |  |  |  | 2.40%
Quarterly floating rate cumulative dividends per share calculation, spread on Government of US treasury bill rate (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3.10% |  |  |  | 3.20% |  |  |  |  |  |  |  |  |  |  |  | 3.10% |  |
Cash dividend in initial quarter (in dollars per share) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.2384 |
Cash dividend in regular quarters (in dollars per share) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.25 |

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- Definition The price per share at which the preferred stock of an entity that has priority over common stock in the distribution of dividends and in the event of liquidation of the entity is redeemed or may be called at. The redemption features of this preferred stock are solely within the control of the issuer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21564-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21488-112644 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 7 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 4, 8 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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