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SCHEDULE V - VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Changes in valuation and qualifying accounts    
Balance at beginning of period $ 222 $ 5
Additions, Charged to costs and expenses 0 140
Additions, Charges to other accounts 0 80
Deductions (119) (3)
Balance at end of period $ 103 $ 222