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INTANGIBLE ASSETS AND GOODWILL - Finite useful lives (Details) | 12 Months Ended
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Dec. 31, 2017
Customer relationships | Minimum |
Disclosure of detailed information about intangible assets [line items] |
Estimated useful life | 3 years
Customer relationships | Maximum |
Disclosure of detailed information about intangible assets [line items] |
Estimated useful life | 10 years
Roaming agreements |
Disclosure of detailed information about intangible assets [line items] |
Estimated useful life | 12 years

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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- Definition Useful Lives Or Amortization Rates, Intangible Assets Other Than Goodwill, Period + References No definition available. + Details
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Namespace Prefix: | rci_
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Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
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- Details
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Period Type: |

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- Details
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Namespace Prefix: |
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Period Type: |

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- Details
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