Income Taxes (Reconciliation of Effective Tax Rate and U.S. Federal Statutory Rate) (Details)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
U.S. federal statutory rate	35.00%	35.00%	35.00%
Increase (decrease) resulting from:
State and local income taxes, net of federal tax benefit	3.50%	1.20%	3.70%
Re-measurement of net deferred tax liabilities	(31.20%)	(0.00%)	(0.00%)
Tax basis in foreign investments	(7.80%)	(0.00%)	(0.00%)
Deemed repatriation tax	4.20%	0.00%	0.00%
Uncertain tax positions	(0.90%)	0.00%	(0.80%)
AB InBev/SABMiller dividend benefit	(5.90%)	(0.60%)	(0.50%)
Domestic manufacturing deduction	(1.80%)	(0.80%)	(2.00%)
Other	0.80%	0.00%	(0.30%)
Effective tax rate	(4.10%)	34.80%	35.10%