Other Comprehensive Earnings/Losses (Reclassifications) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net periodic benefit income, excluding service cost	$ (102)	$ (127)	$ (184)
(Income) losses from investments in equity securities	(652)	(493)	2,201
Pre-tax amounts reclassified from accumulated other comprehensive losses to net earnings	(11,264)	(8,130)	(5,764)
ABI [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
(Income) losses from investments in equity securities	(673)	(539)	1,973
Reclassification from AOCI	243
Reclassification adjustment from AOCI, equity method investment, before tax	285
Net investment hedge, gain (loss), reclassification, before tax	42
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	244	13	2
Reclassification out of Accumulated Other Comprehensive Income [Member] | Benefit Plans [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net periodic benefit income, excluding service cost	(7)	(26)	88
Reclassification out of Accumulated Other Comprehensive Income [Member] | Net loss [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net periodic benefit income, excluding service cost	29	8	127
Reclassification out of Accumulated Other Comprehensive Income [Member] | Prior service costs/credit [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net periodic benefit income, excluding service cost	(36)	(34)	(39)
Reclassification out of Accumulated Other Comprehensive Income [Member] | ABI [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
(Income) losses from investments in equity securities	251	39	(85)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Currency Translation Adjustments and Other [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
(Income) losses from investments in equity securities	$ 0	$ 0	$ (1)