. the us pension plans were 86% ( 86 % ) funded at both december 31 , 2015 and 2014 based on the projected benefit obligation . schlumberger 2019s international defined benefit pension plans were a combined 93% ( 93 % ) funded at december 31 , 2015 based on the projected benefit obligation . this compares to 94% ( 94 % ) funded at december 31 , 2014