XML 16 R5.htm IDEA: XBRL DOCUMENT v3.21.1
Consolidated Statement of Financial Position (Unaudited) (Parentheticals) - USD ($)
$ in Millions
Mar. 31, 2021
Dec. 31, 2020
Allowance for trade receivables $ 9 $ 10
Property, plant and equipment, accumulated depreciation $ 431 $ 431
Common stock, par value $ 0.01 $ 0.01
Convertible Series A Preferred Stock [Member]    
Preferred stock, no par value 0 0
Preferred stock, liquidation preference per share $ 100 $ 100