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Other Assets (Tables) | 12 Months Ended
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Dec. 31, 2016
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] |
Schedule of Other Assets |
(in millions) | 2016 |  | 2015 |
Supplemental Executive Retirement Plan assets | $ | 115 |  | $ | 58 |
Equity investment - Belize Electricity | 78 |  | 79 |
Renewable Energy Credits (Note 8 (xiv)) | 39 |  | 17 |
Defined benefit pension plan assets (Note 26) | 32 |  | 11 |
Deferred compensation plan assets (Note 16) | 24 |  | 25 |
Other investments | 21 |  | 13 |
Available-for-sale investment (Notes 28 and 30) | — |  | 33 |
Deposit on acquisition of Aitken Creek (Note 27) | — |  | 38 |
Other | 97 |  | 78 |
| $ | 406 |  | $ | 352 |

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- Definition Tabular disclosure of noncurrent assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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