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Labor Union Contracts	12 Months Ended
Labor Union Contracts	Dec. 31, 2015
Labor Union Contracts
Labor Union Contracts	Labor Union Contracts Approximately 11,000, or 50%, of our employees are members of various bargaining units represented by the Communications Workers of America ("CWA") or the International Brotherhood of Electrical Workers ("IBEW") and are subject to collective bargaining agreements that expire in 2017.