v3.20.4
THE COMPANY AND SIGNIFICANT ACCOUNTING POLICIES - Accounting Pronouncements Recently Adopted (Details) - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
THE COMPANY AND SIGNIFICANT ACCOUNTING POLICIES        
Cumulative effect adjustment for the adoption of new accounting principle (ASU 2016-13) $ (2,858.2) $ 1,214.2 $ 1,397.6 $ 2,112.4
ASU 2016-13        
THE COMPANY AND SIGNIFICANT ACCOUNTING POLICIES        
Cumulative effect adjustment for the adoption of new accounting principle (ASU 2016-13) $ 16.9