Income Taxes	9 Months Ended
Sep. 30, 2014
Income Tax Disclosure [Abstract]
Income Taxes	NOTE 3 — INCOME TAXES The IRS Examination Division began an audit of HCA Holdings, Inc.’s 2011 and 2012 federal income tax returns during 2014. We are also subject to examination by state and foreign taxing authorities. Our liability for unrecognized tax benefits was $503 million, including accrued interest of $43 million, as of September 30, 2014 ($462 million and $30 million, respectively, as of December 31, 2013). Unrecognized tax benefits of $180 million ($160 million as of December 31, 2013) would affect the effective rate, if recognized. The provision for income taxes reflects $3 million and $7 million ($2 million and $4 million, respectively, net of tax) of interest expense related to taxing authority examinations for the quarters ended September 30, 2014 and 2013, respectively. The provision for income taxes reflects $11 million ($7 million, net of tax) of interest expense related to taxing authority examinations and $8 million ($5 million, net of tax) of reductions in interest expense related to taxing authority examinations for the nine months ended September 30, 2014 and 2013, respectively. Depending on the completion of examinations by federal, state or foreign taxing authorities, the resolution of any tax disputes, or the expiration of statutes of limitation for specific taxing jurisdictions, we believe it is reasonably possible our liability for unrecognized tax benefits may significantly increase or decline within the next 12 months. However, we are currently unable to estimate the range of any possible change.

Income Taxes

9 Months Ended

Sep. 30, 2014

NOTE 3 — INCOME TAXES

The IRS Examination Division began an audit of HCA Holdings, Inc.’s 2011 and 2012 federal income tax returns during 2014. We are also subject to examination by state and foreign taxing authorities.

Our liability for unrecognized tax benefits was $503 million, including accrued interest of $43 million, as of September 30, 2014 ($462 million and $30 million, respectively, as of December 31, 2013). Unrecognized tax benefits of $180 million ($160 million as of December 31, 2013) would affect the effective rate, if recognized. The provision for income taxes reflects $3 million and $7 million ($2 million and $4 million, respectively, net of tax) of interest expense related to taxing authority examinations for the quarters ended September 30, 2014 and 2013, respectively. The provision for income taxes reflects $11 million ($7 million, net of tax) of interest expense related to taxing authority examinations and $8 million ($5 million, net of tax) of reductions in interest expense related to taxing authority examinations for the nine months ended September 30, 2014 and 2013, respectively.

Depending on the completion of examinations by federal, state or foreign taxing authorities, the resolution of any tax disputes, or the expiration of statutes of limitation for specific taxing jurisdictions, we believe it is reasonably possible our liability for unrecognized tax benefits may significantly increase or decline within the next 12 months. However, we are currently unable to estimate the range of any possible change.