XML 15 R4.htm IDEA: XBRL DOCUMENT v3.22.2
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE EARNINGS (PARENTHETICAL) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Statement of Comprehensive Income [Abstract]        
Postretirement benefit plan reclassification, net of tax benefit $ 1 $ 1 $ 2 $ 2