A Research Study to See How Well Weekly Insulin Icodec Maintains Blood Sugar Levels Compared to Daily Basal Insulins in Adults With Type 2 Diabetes

Inclusion Criteria: * Diagnosed with T2D greater than or equal to (≥) 180 days prior to the day of screening. * Treatment with any of the following non-insulin glucose-lowering medication(s) or combination regimen(s) at the time of screening: Metformin, Sulfonylureas, Meglitinides (glinides), dipeptidyl peptidase-4 (DPP-4) inhibitors, sodium-glucose cotransporter-2 (SGLT2) inhibitors, Thiazolidinediones, Alpha-glucosidase inhibitors, Oral combination products (for the allowed individual oral antidiabetic drugs), Oral or injectable glucagon-like peptide-1 (GLP-1) receptor agonists and Injectable dual glucose-dependent insulinotropic polypeptides (GIP) and GLP-1 receptor agonist. * Need of intensification with basal insulin, as indicated at the discretion of the investigator. * Recorded HbA1c value ≥7% within the last 90 days prior to randomization. Exclusion Criteria: * Known or suspected hypersensitivity to study intervention(s) or related products. * Previous participation in this study. Participation is defined as signed informed consent. * Female who is pregnant, breast-feeding or intends to become pregnant or is of child-bearing potential and not using adequate contraceptive method. * Participation (i.e., received any study intervention) in any interventional clinical study within 90 days before screening. * Any disorder which in the investigator's opinion might jeopardize participant's safety.