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Properties and Equipment, Net (Tables)
12 Months Ended
Dec. 31, 2017
Property, Plant and Equipment [Abstract]  
Properties and Equipment, Net
Properties and equipment, net is summarized in the following table:
At December 31,
2017
 
2016
 
(in millions)
Land
$
8

 
$
8

Buildings and improvements
609

 
594

Furniture and equipment
145

 
142

Total
762

 
744

Accumulated depreciation and amortization
(577
)
 
(542
)
Properties and equipment, net
$
185

 
$
202