SAFe (The Scaled Agile Framework) uses Story Points throughout the various levels as its estimation currency. This is covered in the “Story” article on the SAFe site. This is a pretty standard practice in organizations scaling agile these days. If you dive a bit deeper into how this is done in SAFe you will see that actually the story points used in SAFe are quite similar to “Ideal Developer Day” as this helps the teams align to a common baseline and support a rational economic ROI discussion at the level of Features/Capabilities that require effort from more than one team or haven’t even been mapped to a specific team yet.
An alternative to using Story Points at the team level that is interesting to look at especially as Kanban is becoming a first-class citizen of the SAFe world is to use NoEstimates.