NEW YORK--(BUSINESS WIRE)--Fitch Ratings has assigned a 'BB-' rating to HCA Inc.'s (HCA) $750 million senior notes. Fitch expects that the company will apply the proceeds of the proposed notes to refinance certain of its existing senior debt. A full list of ratings follows at the end of this release. The Rating Outlook is Stable. The ratings apply to $28.5 billion of debt outstanding at Sept. 30, 2014. KEY RATING DRIVERS --In August 2014, Fitch upgraded HCA's Issuer Default Rating (IDR) to 'BB-