v3.19.2
Acquisition - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
May 10, 2019
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Business Acquisition [Line Items]          
Amortization of intangible assets   $ 25 $ 11 $ 40 $ 22
Revenue   3,524 $ 3,605 6,870 $ 7,188
eFront [Member]          
Business Acquisition [Line Items]          
Business acquisition, percentage of equity interest acquired 100.00%        
Business acquisition purchase price, excluding settlement of debt $ 1,300        
Amortization of intangible assets   10   $ 10  
Finite-lived intangible assets had a weighted-average remaining useful life       10 years  
Revenue   $ 22   $ 22  
eFront [Member] | Minimum [Member]          
Business Acquisition [Line Items]          
Finite-lived intangible asset, useful life       5 years  
eFront [Member] | Maximum [Member]          
Business Acquisition [Line Items]          
Finite-lived intangible asset, useful life       11 years