During the 9 tails attack on the hidden leaf, Minato along with Kushina performed the death reaper sealing jutsu and sealed the Kyuubi into Naruto. Its been known that those who perform this forbidden sealing jutsu sacrifice both their lives and souls to the death reaper. However, Minato said he would also seal part of Kushina inside Naruto (which he actually did).
Does this mean that half of Kushina's soul was sealed in Naruto while the death reaper took the remaining half? Or were both hers and Minato's taken by the death reaper.