We claim the ornamental design for a beverage container lid, as shown and described.
FIG. 1 is a top perspective view of the beverage container lid according to the new design.
FIG. 2 is a bottom perspective view of the beverage container lid shown in FIG. 1.
FIG. 3 is a front elevation view of the beverage container lid shown in FIG. 1.
FIG. 4 is a rear elevation view of the beverage container lid shown in FIG. 1.
FIG. 5 is a left side elevation view of the beverage container lid shown in FIG. 1.
FIG. 6 is a right side elevation view of the beverage container lid shown in FIG. 1.
FIG. 7 is a top plan view of the beverage container lid shown in FIG. 1; and,
FIG. 8 is a bottom plan view of the beverage container lid shown in FIG. 1.
The broken lines in the drawings illustrate portions of the beverage container lid that form no part of the claimed design. The broken lines in the drawings depicting a container as environment form no part of the claimed design.