How do you determine the portion of Dividends that are foreign source of an ADR stock?

[RJS5]

Foreign taxes were paid for a couple of different ADR stocks.  How do I answer the question about the amount of foreign source income.  

The stocks are CAJ, SNE and NVS

[KittyM]

The foreign source income upon which you paid foreign tax should be listed in the dividend details of your Brokerage 1099-B.

[Sandy07879]

Yes, foreign source income should be on your statement for 2019 Foreign Tax Paid.  I also called the company to verify it.  Mine was in a mutual fund, so there is a box that needs to be checked to indicate that.