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RISK MANAGEMENT AND FINANCIAL INSTRUMENTS (Details 3) In Millions, unless otherwise specified | Jun. 30, 2013 Foreign exchange contracts - United States or Euro dollar forwards - purchase USD ($) | Jun. 30, 2013 Foreign exchange contracts - United States or Euro dollar forwards - purchase EUR (€) | Dec. 31, 2012 Foreign exchange contracts - United States or Euro dollar forwards - purchase USD ($) | Dec. 31, 2012 Foreign exchange contracts - United States or Euro dollar forwards - purchase EUR (€) | Jun. 30, 2013 Foreign exchange contracts - United States dollar forwards - sell USD ($) | Dec. 31, 2012 Foreign exchange contracts - United States dollar forwards - sell USD ($) | Jun. 30, 2013 Interest rate contracts - short-term borrowings CAD | Dec. 31, 2012 Interest rate contracts - short-term borrowings CAD | Jun. 30, 2013 Interest rate contracts - long-term debt CAD | Dec. 31, 2012 Interest rate contracts - long-term debt CAD | Jun. 30, 2013 Equity contracts CAD | Dec. 31, 2012 Equity contracts CAD | Jun. 30, 2013 Commodity contracts Natural gas MMcf | Dec. 31, 2012 Commodity contracts Natural gas MMcf | Jun. 30, 2013 Commodity contracts Crude oil MMBbls | Dec. 31, 2012 Commodity contracts Crude oil MMBbls | Jun. 30, 2013 Commodity contracts NGL MMBbls | Dec. 31, 2012 Commodity contracts NGL MMBbls | Jun. 30, 2013 Commodity contracts Power MWh | Dec. 31, 2012 Commodity contracts Power MWh
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RISK MANAGEMENT AND FINANCIAL INSTRUMENTS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2013 | $ 955 | € 4 | $ 558 | € 6 | $ 2,120 | $ 2,088 | 1,408 | 3,644 | 3,273 | 4,590 | 41 | 39 |  |  |  |  |  |  |  |
2014 | 468 |  | 468 |  | 2,402 | 2,402 | 3,613 | 3,591 | 3,861 | 3,055 | 38 | 36 |  |  |  |  |  |  |  |
2015 | 25 |  | 25 |  | 2,751 | 2,751 | 3,487 | 3,455 | 1,776 | 1,760 | 38 |  |  |  |  |  |  |  |  |
2016 | 25 |  | 25 |  | 2,323 | 2,323 | 3,179 | 3,157 | 1,168 | 1,142 |  |  |  |  |  |  |  |  |  |
2017 | 413 |  | 413 |  | 2,557 | 2,557 | 2,870 | 2,841 |  |  |  |  |  |  |  |  |  |  |  |
2018 | 2 |  |  |  | 1,649 |  | 150 |  |  |  |  |  |  |  |  |  |  |  |  |
Thereafter |  |  | 6 |  |  | 158 |  | 171 |  |  |  |  |  |  |  |  |  |  |  |
Thereafter | $ 4 |  |  |  | $ 3,771 |  | 53 |  |  |  |  |  |  |  |  |  |  |  |  |
2013 |  |  |  |  |  |  |  |  |  |  |  |  | 26,000 | 55,000 | 10 | 37 | 3 | 1 |  |
2013 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 51 | 51
2014 |  |  |  |  |  |  |  |  |  |  |  |  | 41,000 | 19,000 | 36 | 38 | 3 | 2 |  |
2014 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 55 | 67
2015 |  |  |  |  |  |  |  |  |  |  |  |  | 11,000 | 10,000 | 29 | 29 |  |  |  |
2015 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5 | 48
2016 |  |  |  |  |  |  |  |  |  |  |  |  | 10,000 | 10,000 | 23 | 23 |  |  |  |
2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 20 | 63
2017 |  |  |  |  |  |  |  |  |  |  |  |  | 11,000 | 11,000 | 18 | 18 |  |  |  |
2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 40 | 83
2018 |  |  |  |  |  |  |  |  |  |  |  |  | 3,000 |  | 9 |  |  |  |  |
2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 30 |
Thereafter |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,000 |  | 9 |  |  |  |
Thereafter |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 66
Thereafter |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 16 |

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