Generally speaking, child custody goes to the person who wants it. If contested, it will be split 50/50 if there is nothing unusual. Child support is paid by the person who has less time with the child. If 50/50, it is paid by person earning more.
Spousal support is paid by person earning more money. If the marriage was for a long period, that could mean until one dies or remarries. If for a short time, half the duration of marriage.
Assets and debts are split in half if they are community property.