Safety and Tolerability of Liraglutide in Subjects With Impaired Kidney Function and in Subjects With Normal Kidney Function

Inclusion Criteria: * Subjects meeting the pre-defined GFR (glomerular filtration rate) criteria (estimated by the Cockcroft and Gault formula) for any of the renal function groups * Body Mass Index (BMI) maximum 40 kg/m\^2 Exclusion Criteria: * Known or suspected allergy to trial product(s) or related products * Renal transplanted patients * Haemodialysis patients * Cardiac problems * Uncontrolled treated/untreated hypertension * History of alcoholism or drug abuse during the last 12 months * 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 * Excessive consumption of food deviating from a normal diet as judged by the Investigator