Consolidated balance sheet (Parenthetical) - CAD CAD in Millions	Mar. 31, 2017	Dec. 31, 2016
Amounts receivable (payable) from (to) related parties	CAD 318	CAD 172
Due to related parties, current	CAD 75	CAD 75
Common shares authorized	1,100,000,000	1,100,000,000
Common shares outstanding	848,000,000	848,000,000
Long-term debt
Due to related parties	CAD 4,447	CAD 4,447
Other long-term obligations
Due to related parties	CAD 93	CAD 104

The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

+ References

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-Publisher FASB
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Carrying amount as of the balance sheet date of obligations due all related parties. For classified balance sheets, represents the current portion of such liabilities (due within one year or within the normal operating cycle if longer).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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Portion of the carrying amount as of the balance sheet date of obligations due all related parties that is payable after one year or beyond the normal operating cycle if longer.

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Receivables to be collected from (obligations owed to) related parties, net as of the balance sheet date within one year where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth.

+ References

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