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Receivables, net, Contract Assets and Contract Liabilities (Tables)
12 Months Ended
Dec. 31, 2019
Revenue from Contract with Customer [Abstract]  
Schedule of Receivables, Net, Contract Assets and Contract Liabilities
Receivables, net, contract assets and contract liabilities were as follows (in millions):
 
 
2019

 
2018

Receivables, net
 
$
2,337

 
$
2,444

Contract assets
 
9,094

 
9,472

Contract liabilities
 
7,054

 
6,491