Actually the goodwill for M2 hasnt been finalised yet, maybe the response could include an updated and more believable goodwill.
"Goodwill of $2,362,412,000 represents the residual value of the purchase price of the company over the fair value of identified tangible and intangible assets, and has been determined on a provisional basis due to the size and complexity of the transaction. Finalisation of purchase price accounting estimates will be completed by 30 June 2017."