Annual report pursuant to Section 13 and 15(d)

PENSION AND OTHER POSTRETIREMENT BENEFITS (Details 7) - Contribution Plan

v3.20.4
PENSION AND OTHER POSTRETIREMENT BENEFITS (Details 7) - Contribution Plan - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Other Pension Plan      
Defined Contribution Plan Disclosure [Line Items]      
Defined Contribution Plan, Cost $ 85 $ 102 $ 104