Summary of significant accounting policies (Tables)

12 Months Ended

Dec. 31, 2018

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Summary of Exchange Rates

The most important exchange rates that have been used in preparing the financial statements are:

	Closing rate						Average rate
1 US dollar equals:	31 December 2018		31 December 2017		31 December 2016		31 December 2018		31 December 2017		31 December 2016
Argentinean peso		37.807879		18.774210		15.850116		—		16.580667		14.762591
Australian dollar		1.416593		1.279580		1.384689		1.334300		1.308997		1.3440978
Brazilian real		3.874806		3.308005		3.259106		3.634827		3.201667		3.474928
Canadian dollar		1.362882		1.253982		1.345983		1.293896		1.303248		1.318844
Colombian peso		3 246.70		2 988.60		3 002.14		2 967.36		2 965.94		2 986.89
Chinese yuan		6.877787		6.507500		6.944520		6.581607		6.785290		6.607635
Euro		0.873362		0.833819		0.948677		0.845697		0.886817		0.902821
Mexican peso		19.682728		19.735828		20.663842		19.195084		18.811612		18.464107
Pound sterling		0.781249		0.739790		0.812238		0.750773		0.773029		0.737400
Peruvian nuevo sol		3.369998		3.244558		3.352820		3.284477		3.267432		3.394121
South Korean won		1 115.40		1 067.63		1 203.90		1 095.46		1 134.04		1 154.50
South African rand		14.374909		12.345193		13.714953		13.105486		13.338803		14.0166901
Turkish lira		5.291532		3.790879		3.516940		4.560685		3.615028		3.50148

Summary of Estimated Useful Live of Assets Expected Utility

The estimated useful lives are defined in terms of the asset’s expected utility to the company and can vary from one geographical area to another. On average the estimated useful lives are as follows:

Industrial buildings – other real estate properties	20 - 50 years
Production plant and equipment:
Production equipment	10 - 15 years
Storage, packaging and handling equipment	5 - 7 years
Returnable packaging:
Kegs	2 - 10 years
Crates	2 - 10 years
Bottles	2 - 5 years
Point of sale furniture and equipment	5 years
Vehicles	5 years
Information processing equipment	3 - 5 years