Apple's bill was probably under $80 million. It was ~$60 million through judgment at the end of 2013: http://www.reuters.com/article/us-apple-samsung-fees-idUSBRE.... The subsequent appellate proceedings would be small in comparison.

The bigger problem (for a large company) is the uncertainty caused by litigation. It's a distraction to the core business and can tie-up attempts to improve or expand on features accused in the litigation, not to mention it can spook investors.