Other Comprehensive Earnings/Losses (Reclassifications) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net periodic benefit income, excluding service cost	$ (202)	$ (77)	$ (37)
(Income) losses from equity investments	5,979	211	(1,725)
Marketing, administration and research costs	2,432	2,154	2,226
Pre-tax amounts reclassified from accumulated other comprehensive losses to net earnings (losses)	(2,475)	(4,454)	1,298
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 (losses)	81	169	139
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	122	148	173
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	163	173	200
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	(41)	(25)	(27)
Reclassification out of Accumulated Other Comprehensive Income [Member] | ABI [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
(Income) losses from equity investments	(76)	21	(34)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Currency Translation Adjustments and Other [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Marketing, administration and research costs	$ 35	$ 0	$ 0