XML 40 R67.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Goodwill and Other Intangibles (Intangible Rollforward) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Gross carrying amount    
Beginning Balance, Gross $ 907  
Acquisition   $ 907
Ending Balance, Gross 907 907
Accumulated amortization    
Beginning Balance, amortization (112)  
Amortization (187) (112)
Ending Balance, amortization (299) (112)
Net carrying amount    
Beginning Balance, Net 795  
Acquisition   907
Amortization (187) (112)
Ending Balance, Net $ 608 $ 795