RRSP withdrawal reporting in TT

I took out a lump sum from my RRSP in 2023 and Canada automatically withheld 25% in taxes.  Let's say I withdrew $20,000 and Canada Revenue took $5000.
In TurboTax, under Canadian Retirement Income:
What amount do I put for Total Distribution, and what do I enter for Taxable Part of Distribution?

And do I enter these amounts in US dollars, and if so, the exchange rate as of Dec 31st or the day I withdrew?
--- Then, I understand I need to fill out Form 1116.  I checked General Category Income Type, then Other Gross Income, then it asks for Description (RRSP withdrawal) and Amount for Canada (what do I put here?)