Pavan,
Table NAST, give the billing output type in field Message type, get all the Object key. Next, go to table VBRK and put Object key as billing document no. and execute. In VBRK, you can check the company codes, the sales organizations etc. for these billing docs which have used this output type.
At master data level, also you can check, in table NACH, give the output type in condition type and see what are the Variablekey. This will indicate if the output is applicable for different countries.
TW