If a business obtains a deposit for $10,000 for a future project that costs $20,000. What is the offsetting entry? Is it cash?

If a business places $10,000 in deferred revenues as a liability entry, what is the offsetting entry? Is it A/R?

Thanks!

Deposit of 10,000 ahead of time...

Dr. Cash 10,000 (as cash was received)
Cr. Unearned Revenue (liability) 10,000