v3.7.0.1
Estimated Future Amortization Expense for Other Intangible Assets (Detail)
$ in Millions
Jun. 30, 2017
USD ($)
Finite-Lived Intangible Assets [Line Items]  
Remainder of 2017 $ 1,393
2018 1,891
2019 1,656
2020 1,406
2021 $ 1,222