XML 77 R60.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Goodwill and Intangibles - Schedule of Estimated Future Amortization Expense for Intangible Assets (Detail) - USD ($)
$ in Millions
Dec. 31, 2019
Dec. 31, 2018
Goodwill And Intangible Assets Disclosure [Abstract]    
2020 $ 1  
2021 1  
2022 1  
2023 1  
2024 1  
Thereafter 41  
Intangible assets $ 46 $ 27