Retrieve Shipping cost breakup in Order details

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Hello I have an application where I am splitting the order into multiple sub- orders.

While doing this, in case the customer has set different Shipping Profiles, I need to retrieve the breakup of the Shipping cost by different products so that I can apportion the Shipping cost correctly. 

Currently when i see the order info passed to me, I am only getting the Total Shipping cost for the order and no breakup. 

Thanks in advance for any guidance on how to handle this !