Investment in AB InBev/SABMiller (Summary of Financial Data in AB InBev) (Details) - AB InBev [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Sep. 30, 2018	Sep. 30, 2017
Equity Method Investment, Summarized Financial Information, Income Statement [Abstract]
Net revenues	$ 55,500	$ 56,004
Gross profit	34,986	34,376
Earnings from continuing operations	9,020	6,769
Net earnings	9,020	6,845
Net earnings attributable to AB InBev	$ 7,641	$ 5,473
Current assets			$ 20,289	$ 30,920
Long-term assets			207,921	213,696
Current liabilities			32,019	37,765
Long-term liabilities			130,812	134,236
Noncontrolling interests			$ 7,251	$ 10,639