XML 57 R40.htm IDEA: XBRL DOCUMENT v3.20.1
DESCRIPTION OF BUSINESS (Details)
1 Months Ended 3 Months Ended
Mar. 27, 2020
USD ($)
Mar. 31, 2020
USD ($)
segment
Mar. 31, 2019
USD ($)
Subsequent Event [Line Items]      
Reporting unit, percentage of fair value in excess of carrying value (less than)   20.00%  
Number of reportable segments | segment   3  
Aggregate principal balance   $ 11,000,000,000.0  
Net transfers to UTC $ 10,900,000,000 $ 10,948,000,000 $ 89,000,000