CION Grosvenor Infrastructure Master Fund, L L C Shares [Member] Cion Grosvenor Infrastructure Master Fund, L L C Shares [Member] CION Grosvenor Infrastructure Master Fund, LLC Shares [Member] Cion Grosvenor Infrastructure Master Fund [Member] CION Grosvenor Infrastructure Master Fund. Class D Shares [Member] Represents the member of class d. Class I Shares [Member] Represents the member of class I. Class S Shares [Member] Represents the member of class S. Class U-2 Shares [Member] Represents the member of class U-2. Class U Shares [Member] Represents the member of class U. This member stands for closed-end fund structure; liquidity limited to periodic repurchases of shares. Closed End Fund Structure Liquidity Limited To Periodic Repurchases Of Shares Risk [Member] General Investment Risk [Member] This member stands for general investment risk. Management Risk [Member] Management Risk [Member]. Management Risk [Member] Non Diversified Status Risk [Member] Non-Diversified Status Risk [Member] This member stands for non-diversified status risk. Restrictions On Transfers Risk [Member] This member stands for restrictions on transfers risk. Valuation Risk [Member] Valuation Risk [Member] Valuation Risk [Member]. Class of Stock [Domain] Debt Instrument Name [Domain]