Agencies involved in the pitch included the Interpublic's McCann Erickson, the incumbent, and Deutsch, and another Omnicom agency TBWA\Chiat\Day.
The loss will be a further blow to Interpublic, which has seen its €1.5bn L'Oreal account move to ZenithOptimedia, as well as the loss of $3.2bn General Motors account.
Omnicom recently posted a 10% rise in net income for the second quarter, with income rising to $225.8m from $206.1m, as worldwide revenue increased 9% to $2.6bn from $2.4bn last time.
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