XML 101 R86.htm IDEA: XBRL DOCUMENT v3.10.0.1
Intangible Assets (Estimated Amortization Expense Other Intangible Assets) (Detail) - Other Intangible Assets
$ in Millions
Jun. 30, 2018
USD ($)
Finite-Lived Intangible Assets  
Remainder of 2018 $ 3
2019 5
2020 3
2021 3
2022 $ 2