XML 44 R63.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Goodwill and Other Intangibles (Estimated Future Aggregate Amortization Expense) (Details) - USD ($)
$ in Millions
Dec. 31, 2019
Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]    
2020 $ 344  
2021 328  
2022 299  
2023 278  
2024 267  
Subsequent years 1,258  
Net Carrying Amount $ 2,774 $ 1,437