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ACQUISITIONS, GOODWILL AND OTHER INTANGIBLE ASSETS - Estimated 5 Year Amortization (Details)
$ in Millions
Dec. 31, 2017
USD ($)
Estimated annual pre-tax amortization  
2018 $ 2,274
2019 2,148
2020 2,039
2021 1,878
2022 $ 1,713