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PENSION AND OTHER POSTRETIREMENT BENEFITS - EXPECTED BENEFIT PAYMENTS AND EMPLOYER CONTRIBUTIONS (Details) $ in Millions | Dec. 31, 2018 CAD ($)
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Canada | Pension |
Benefits Expected to be Paid by the Company |
Expected future benefit payments for 2019 | $ 174
Expected future benefit payments for 2020 | 180
Expected future benefit payments for 2021 | 187
Expected future benefit payments for 2022 | 194
Expected future benefit payments for 2023 | 201
Expected future benefit payments for 2023-2027 | 1,104
Contributions expected to be paid in next fiscal year | 47
Canada | OPEB |
Benefits Expected to be Paid by the Company |
Expected future benefit payments for 2019 | 13
Expected future benefit payments for 2020 | 12
Expected future benefit payments for 2021 | 13
Expected future benefit payments for 2022 | 13
Expected future benefit payments for 2023 | 13
Expected future benefit payments for 2023-2027 | 39
Contributions expected to be paid in next fiscal year | 7
United States | Pension |
Benefits Expected to be Paid by the Company |
Expected future benefit payments for 2019 | 124
Expected future benefit payments for 2020 | 96
Expected future benefit payments for 2021 | 97
Expected future benefit payments for 2022 | 98
Expected future benefit payments for 2023 | 95
Expected future benefit payments for 2023-2027 | 438
Contributions expected to be paid in next fiscal year | 114
United States | OPEB |
Benefits Expected to be Paid by the Company |
Expected future benefit payments for 2019 | 26
Expected future benefit payments for 2020 | 26
Expected future benefit payments for 2021 | 25
Expected future benefit payments for 2022 | 24
Expected future benefit payments for 2023 | 23
Expected future benefit payments for 2023-2027 | 98
Contributions expected to be paid in next fiscal year | $ 13

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