The old adage goes: "If you owe the bank $100 that's your problem. If you owe the bank $100 million, that's the bank's problem." So perhaps somewhat conversel

The old adage goes: "If you owe the bank $100 that's your problem. If you owe the bank $100 million, that's the bank's problem." So perhaps somewhat conversely: "If the Saudis owe you $1 billion and decide not to pay you, that's your problem."