What did i do and can i fix it?

I stripped the usb end of my iphone charger and fed it through a wall outlet while the other end was connected to my phone, i heard a pop and my phone turned off and wouldnt turn back on, did i burn the motherboard of just the battery or wtf did i just do

Since the charger is 6 volts and you just ran 120 volts through your phone you have destroyed it.