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LEASES (Tables)
 6 Months Ended
Jun. 30, 2019
Leases [Abstract]  
Future Minimum Lease Commitments
Future minimum lease commitments at June 30, 2019 were as follows (in millions):
 
Total
Remainder of
2019
2020
2021
2022
2023
Thereafter
Operating leases
$
1,242

 
$
184

 
$
191

 
$
163

 
$
128

 
$
99

 
$
477

 
Less: imputed interest
$
174

 
 
 
 
 
 
 
 
 
 
 
 
 
Total
$
1,068