| http://www.w3.org/ns/prov#value | - For a discussion of charges recorded in restructuring and other items, see Note 7 of the Notes to the Condensed Consolidated Financial Statements. 22Results of Operations - Six Months Ended June 30, 2013 and 2012Operating Revenue Six Months Ended June 30, (in millions)20132012Increase (Decrease)% Increase (Decrease)Passenger: Mainline$12,656$12,282$3743 %Regional carriers3,1583,375(217)(6)%Total p
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