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Earnings Per Share (Tables)
6 Months Ended
Jun. 30, 2016
Earnings Per Share  
Reconciliation Of The Numerators And Denominators Of Basic Earnings Per Share And Diluted Earnings Per Share
 Three months ended Six months ended
 June 30, June 30,
 2016 2015 2016 2015
Numerators           
Numerator for basic earnings per share:           
Net Income$3,515 $3,184 $7,400 $6,523
Less: Net income attributable to noncontrolling interest (107)  (102)  (189)  (178)
Net Income attributable to AT&T 3,408  3,082  7,211  6,345
Dilutive potential common shares:           
Share-based payment 2  2  6  6
Numerator for diluted earnings per share$3,410 $3,084 $7,217 $6,351
Denominators (000,000)           
Denominator for basic earnings per share:           
Weighted average number of common shares outstanding 6,174  5,204  6,173  5,204
Dilutive potential common shares:           
Share-based payment (in shares) 21  16  20  16
Denominator for diluted earnings per share 6,195  5,220  6,193  5,220
Basic earnings per share attributable to AT&T$0.55 $0.59 $1.17 $1.22
Diluted earnings per share attributable to AT&T$0.55 $0.59 $1.17 $1.22