B757 Captain reported an engine failure during descent resulting in an uneventful single engine landing.

Narrative

During initial descent into ZZZ [Airport] on a flight; crew experienced an engine failure. Captain was Pilot Flying (PF) and First Officer was Pilot Monitoring (PM).ZZZ approach gave crew descent clearance to cross ZZZZZ on the arrival. During the descent at approximately FL200 a power transfer and light flicker occurred and a few seconds later multiple AMBER EICAS messages followed. PF & PM discussed lights and determined the right engine had flamed out. PF maintained flying responsibility and also took radios to allow PM to get into the checklist. PF coordinated with ZZZ approach; advised ATC; and crew agreed best course of action was to continue on the arrival and land at the pre briefed runway allowing crew to run appropriate checklists. PM ran a checklist. Crew determined no engine damage but recognized a R ENG LP PUMP status message and determined restart did not seem feasible. All items accomplished.PM reassumed radios and continued to coordinate with ATC to contact flight control to relay the situation. Crew determined after landing that CFR (Crash Fire Rescue) could look over aircraft after clearing the runway and if no significant damage noted crew could taxi to park single engine. Approach and landing were uneventful. After landing CFR noted no damage and followed aircraft to park. The initial indications of an engine failure during descent with both throttles at idle is very insidious. Low oil pressure (red numbers) was the first eye catching object prior to EICAS messages appearing. There is no checklist on the quick action index. I recall this was brought up during training but after QRH changed recently and all [my] bookmarks deleted I forgot to add that checklist back. Dispatch never received our information until Captain called after we shutdown. Time was compressed as our descent had already begun. Utilizing ACARS may have been a quick fix when time is minimal to allow appropriate agencies alerted.