Earnings Per Share

12 Months Ended

Dec. 31, 2019

Earnings Per Share [Abstract]

Earnings Per Share

Note 6: Earnings Per Share

Computation of Diluted EPS
	2019					2018					2017
Year ended December 31 (in millions, except per share data)	Net Income Attributable to Comcast Corporation		Shares	Per Share Amount		Net Income Attributable to Comcast Corporation		Shares	Per Share Amount		Net Income Attributable to Comcast Corporation		Shares	Per Share Amount
Basic EPS attributable to    Comcast Corporation    shareholders	$	13,057	4,548	$	2.87	$	11,731	4,584	$	2.56	$	22,735	4,708	$	4.83
Effect of dilutive securities:
Assumed exercise or issuance    of shares relating to stock    plans			62					56					78
Diluted EPS attributable to    Comcast Corporation    shareholders	$	13,057	4,610	$	2.83	$	11,731	4,640	$	2.53	$	22,735	4,786	$	4.75

Diluted earnings per common share attributable to Comcast Corporation shareholders (“diluted EPS”) considers the impact of potentially dilutive securities using the treasury stock method. Our potentially dilutive securities include potential common shares related to our stock options and our restricted share units (“RSUs”). Diluted EPS excludes the impact of potential common shares related to our stock options in periods in which the combination of the option exercise price and the associated unrecognized compensation expense is greater than the average market price of our common stock. The amount of potential common shares related to our share-based compensation plans that were excluded from diluted EPS because their effect would have been antidilutive was not material in any of the periods presented.