Investment in AB InBev/SABMiller (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Oct. 10, 2016	Oct. 09, 2016	Sep. 30, 2016
Schedule of Equity Method Investments [Line Items]
Earnings from equity investment	$ 532,000,000	$ 795,000,000	$ 757,000,000
AB InBev [Member]
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage (approximately)	10.20%	10.20%		9.60%
Ordinary shares owned/purchased (in shares)	12,000,000
Earnings from equity investment	$ 532,000,000	$ 0
AB InBev [Member] | Estimate of Fair Value Measurement [Member]
Schedule of Equity Method Investments [Line Items]
Fair value of investment	22,100,000,000	20,900,000,000
AB InBev [Member] | Reported Value Measurement [Member]
Schedule of Equity Method Investments [Line Items]
Fair value of investment	$ 18,000,000,000	17,900,000,000
SABMiller Plc [Member]
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage (approximately)					27.00%	27.00%
Ordinary shares owned/purchased (in shares)				430,000,000
Earnings from equity investment		795,000,000	$ 757,000,000
SABMiller Plc [Member] | The Coca-Cola Company and Gutsche Family Investments [Member]
Schedule of Equity Method Investments [Line Items]
Earnings from equity investment		$ 309,000,000
Restricted Stock [Member] | AB InBev [Member]
Schedule of Equity Method Investments [Line Items]
Equity interest issued or issuable, number of shares	185,000,000