Cook 1 qt. (4 cups) water, sugar, salt, vinegar and pepper in saucepan on medium heat 10 min. or until sugar and salt are dissolved, stirring occasionally.
Pour into plastic container large enough to hold brining liquid and turkey.
Add remaining water. Cool completely.
Remove and discard neck and giblets from turkey cavities. Rinse turkey; drain well.
Add turkey to brining liquid; cover. Refrigerate at least 10 hours or up to 24 hours.
Remove turkey from liquid; rinse well with cold water. Pat dry with paper towels. Cook as desired.