Earnings Per Share Earnings Per Share (Notes)

12 Months Ended

Dec. 31, 2019

Earnings Per Share

Basic earnings per share are computed using the weighted average number of common shares outstanding during the period. Diluted earnings per share incorporate the incremental shares issuable upon the assumed exercise of stock options and the assumed vesting of RSUs. Certain of our RSUs and stock options were excluded from the calculation of diluted earnings per share because they were antidilutive, but these equity instruments could be dilutive in the future.

The following chart sets forth the computation of earnings per share (in thousands, except per share amounts):



	Year Ended December 31,
	2019		2018		2017
Income from continuing operations	$	543,415	$	487,565	$	536,974
Denominator for basic earnings per share—Weighted-average shares outstanding	310,155		314,428		308,607
Effect of dilutive securities:
RSUs	393		409		544
PSUs	—		—		—
Stock options	421		1,012		1,498
Denominator for diluted earnings per share—Adjusted weighted-average shares outstanding	310,969		315,849		310,649
Basic earnings per share from continuing operations	$	1.75	$	1.55	$	1.74
Diluted earnings per share from continuing operations ⁽¹⁾	$	1.75	$	1.54	$	1.73

(1) Diluted earnings per share from continuing operations was computed using the treasury stock method for dilutive securities.

The following table sets forth the number of employee stock-based compensation awards outstanding but not included in the computation of diluted earnings per share because their effect would have been antidilutive for the years ended December 31, 2019, 2018, and 2017 (in thousands):



	Year Ended December 31,
	2019	2018	2017
Antidilutive securities:
RSUs	586	410	37
Stock options	24	8	39