Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2016

Earnings Per Share

Reconciliation Of The Numerators And Denominators Of Basic Earnings Per Share And Diluted Earnings Per Share [Table Text Block]

Year Ended December 31,	2016		2015		2014
Numerators
Numerator for basic earnings per share:
Net income	$	13,333	$	13,687	$	6,736
Less: Net income attributable to noncontrolling interest		(357)		(342)		(294)
Net income attributable to AT&T		12,976		13,345		6,442
Dilutive potential common shares:
Share-based payment		13		13		13
Numerator for diluted earnings per share	$	12,989	$	13,358	$	6,455
Denominators (000,000)
Denominator for basic earnings per share:
Weighted-average number of common shares outstanding		6,168		5,628		5,205
Dilutive potential common shares:
Share-based payment (in shares)		21		18		16
Denominator for diluted earnings per share		6,189		5,646		5,221
Basic earnings per share attributable to AT&T	$	2.10	$	2.37	$	1.24
Diluted earnings per share attributable to AT&T	$	2.10	$	2.37	$	1.24