Safety of Liraglutide in Subjects With Liver Impairment and in Subjects With Normal Liver Function

Inclusion Criteria: * Subjects with normal hepatic function and liver parameters within normal range * Subjects with stable hepatic impairment classified as Child-Pugh grade A, B or C * Body Mass Index between 18.5-40.0 kg/m\^2 (both inclusive) Exclusion Criteria: * Known or suspected allergy to trial product or related products * Liver transplanted subjects * Cardiac problems * Uncontrolled treated/untreated hypertension * Signs of acute liver insufficiency * Positive HIV (human immunodeficiency virus) 1+2 antibodies * Cancer or any clinically significant disease or disorder except for conditions associated with the hepatic impairment * Impaired renal function * Smoking of more than 10 cigarettes per day, or the equivalent for other tobacco products * Habitual excessive consumption of methylxanthine-containing beverages and foods (coffee, tea, soft drinks such as cola, chocolate) as judged by the investigator