Joined Cases C-152/18 P and C-153/18 P: Judgment of the Court (First Chamber) of 2 October 2019 — Crédit Mutuel Arkéa (C-152/18 P) Crédit Mutuel Arkéa (C-153/18 P) v European Central Bank, European Commission (Appeal — Economic and monetary policy — Article 127(6) TFEU — Regulation (EU) No 1024/2013 — Article 4(1)(g) — Prudential supervision of credit institutions on a consolidated basis — Regulation (EU) No 468/2014 — Article 2(21)(c) — Regulation (EU) No 575/2013 — Article 10 — Supervised group — Institutions permanently affiliated to a central body)