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LEASES SUBLEASES (Tables)
 3 Months Ended
Mar. 31, 2014
Table Text Block [Abstract]  
Sublease Rollforward
(in millions)
 
B717 lease/sublease liability
Balance at December 31, 2012
 
$
128

Lease/sublease accretion
 
6

Lease/sublease payments, net (a)
 
(12
)
Balance at December 31, 2013
 
$
122

Lease/sublease accretion
 
2

Lease/sublease payments, net (a)
 
(29
)
Balance at March 31, 2014
 
$
95