v3.26.1
Other Comprehensive Earnings/Losses (Reclassifications) (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Net periodic benefit income, excluding service cost $ (3) $ (14)
(Income) losses from investments in equity securities (158) (143)
Pre-tax amounts reclassified from accumulated other comprehensive losses to net earnings (2,183) (1,077)
Reclassification out of Accumulated Other Comprehensive Income [Member]    
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Pre-tax amounts reclassified from accumulated other comprehensive losses to net earnings 17 (12)
Benefit Plans [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]    
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Net periodic benefit income, excluding service cost 14 2
Net loss [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]    
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Net periodic benefit income, excluding service cost 23 11
Prior service costs/credit [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]    
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Net periodic benefit income, excluding service cost (9) (9)
ABI [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]    
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
(Income) losses from investments in equity securities $ 3 $ (14)