Other Comprehensive Earnings/Losses (Reclassifications) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Pre-tax amounts reclassified from accumulated other comprehensive losses to net earnings	$ 29	$ 51	$ 127	$ 159
AB InBev [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Pre-tax amounts reclassified from accumulated other comprehensive losses to net earnings	(21)	3	(41)	5
Net loss [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Pre-tax amounts reclassified from accumulated other comprehensive losses to net earnings	59	56	196	179
Prior service cost/credit [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Pre-tax amounts reclassified from accumulated other comprehensive losses to net earnings	(9)	(8)	(28)	(25)
Benefit Plans [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Pre-tax amounts reclassified from accumulated other comprehensive losses to net earnings	$ 50	$ 48	$ 168	$ 154