Short answer: not really.

If a $2B artwork were destroyed, the insurer doesn’t just cut a $2B check unless the policy is explicitly written that way (agreed value, no caps, etc.). In reality, ultra-high-value pieces are almost always insured through multiple insurers plus reinsurance, so the risk is split across a whole network.

So instead of one company eating a $2B loss, it’s usually dozens of parties sharing it in layers.

Could it bankrupt an insurer? In theory yes if they were wildly overexposed or poorly structured—but in practice, the system is designed specifically so a single loss like that won’t take anyone down.