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SUBSEQUENT EVENT	3 Months Ended
	Mar. 31, 2018
Subsequent Events [Abstract]
Subsequent Events [Text Block]	SUBSEQUENT EVENT On April 17, 2018, Southwest Airlines Flight 1380 ("Flight 1380") from New York-LaGuardia to Dallas Love Field suffered an uncontained failure of its port CFM56-7B engine, resulting in a Customer fatality, potential injuries to other Customers, and damage to the aircraft. While the cause of the failure is under investigation, the FAA has ordered inspections of all CFM56-7B engines in operation. On April 23, 2018, the Company announced that it was voluntarily going beyond the FAA requirement and performing ultrasonic inspections on all CFM engines in its fleet. The Company is cooperating with all federal, state, and local regulatory and investigatory agencies to determine the cause of this accident. The Company is unable to predict the full effects relating to this accident, which may include increased maintenance and replacement costs, increased litigation or regulatory costs, reduced revenues or reduced revenue growth, and harm to its brand.

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- Definition

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI http://asc.fasb.org/topic&trid=2122774

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