Investment in SABMiller (Summary of Income Statement of SABMiller) (Details) (SABMiller Plc [Member], USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
SABMiller Plc [Member]
Schedule of Equity Method Investments [Line Items]
Net revenues	$ 22,684	$ 23,449	$ 20,780
Operating profit	4,201	5,243	3,603
Net earnings	$ 3,375	$ 4,362	$ 2,596