XML 68 R42.htm IDEA: XBRL DOCUMENT v3.20.2
GENERAL INFORMATION AND OTHER FINANCIAL DATA - RABBI TRUST (Details) - USD ($)
$ in Millions
Sep. 30, 2020
Dec. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]    
Rabbi trust $ 469 $ 488 [1]
[1] Derived from audited financial statements.