Giving one's assets to one's wife

This is a matter related to gifts and inheritance. I am married, with no children. I have adult brothers and sisters. I have decided to give with immediate effect all may assets, wealth, future earnings, including the pension I am accruing at work, to my wife. She will be the sole owner and final decision-maker. Of course, she may consult me if she wishes to and I may express as an opinion, but ultimately she will take the decision. However, the assets etc will remain in my name under secular law because of the huge legal and financial implications in transferring ownership. But my intention is clear: I want to give everything to my wife now, and I will see her as the owner and write a document to this effect and respect her right to take decisions. Will such a transfer of ownership be valid or invalid in shariah? I will appreciate your guidance.