Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2017

Earnings Per Share [Abstract]

Schedule of Computations of Basic and Diluted Earnings Per Share

The following table sets forth the computations of basic and diluted earnings per share for the years ended December 31, 2017, 2016 and 2015 (dollars and shares in millions, except per share amounts):

	2017		2016		2015
Net income attributable to HCA Healthcare, Inc.	$	2,216	$	2,890	$	2,129
Weighted average common shares outstanding		362.305		383.591		414.193
Effect of dilutive incremental shares		9.916		12.260		12.528
Shares used for diluted earnings per share		372.221		395.851		426.721
Earnings per share:
Basic earnings per share	$	6.12	$	7.53	$	5.14
Diluted earnings per share	$	5.95	$	7.30	$	4.99