XML 76 R54.htm IDEA: XBRL DOCUMENT v3.20.4
Goodwill and Other Intangible Assets (Estimated Amortization Expense) (Details)
$ in Millions
Dec. 31, 2020
USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]  
2021 $ 600
2022 588
2023 567
2024 540
2025 $ 518