There is something keeping Intel from winning these contracts and I don't think it was a question of price since I'm sure Intel would have loved this business.
Apple squeezes its suppliers like few others. For Intel selling x86 chips to Apple is ok because for each processor Intel sells to Apple it sells 9 or 10 to someone else. That is a relatively power balanced relationship. But competing with TSMC and Samsung for spinning wafers on cost sounds like a recipe to lower overall GM for relatively little to the top line and virtually nothing to the bottom line.
I have little doubt that Apple and Intel talk from time to time about foundry services but I think the gulf between the two in both pricing and terms and conditions remains huge.