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(Schedule Of Amounts In Accumulated Other Comprehensive Income) (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
U.S. Plans    
Defined Benefit Plan Disclosure [Line Items]    
Prior service cost (credit) $ 95 $ 120
Net actuarial loss 1,199 2,297
Amounts recognized in accumulated other comprehensive income (pre-tax) 1,294 2,417
Non-U.S. Plans    
Defined Benefit Plan Disclosure [Line Items]    
Prior service cost (credit) 0 0
Net actuarial loss 4 82
Amounts recognized in accumulated other comprehensive income (pre-tax) $ 4 $ 82