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Leases - Schedule of Consolidated Balance Sheet Related To Leases (Detail) - USD ($)
$ in Millions
Jun. 30, 2020
Dec. 31, 2019
Assets    
Operating lease assets, net $ 553 $ 615
Finance lease assets, net 12 15
Total lease assets 565 630
Current    
Operating lease, current liabilities 136 132
Finance lease, current liabilities 3 3
Noncurrent    
Operating lease, noncurrent liabilities 494 541
Finance lease, noncurrent liabilities 7 10
Total lease liabilities $ 640 $ 686