v3.19.3.a.u2
Consolidated Statements of Comprehensive Income - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Consolidated Statements Of Comprehensive Income [Abstract]      
Net Income $ 14,975 $ 19,953 $ 29,847
Foreign Currency:      
Translation adjustment (includes $(9), $(32) and $(5) attributable to noncontrolling interest), net of taxes of $18, $(45) and $123 19 (1,062) 15
Securities:      
Net unrealized gains (losses), net of taxes of $17, $(1) and $109 50 (4) 187
Reclassification adjustment included in net income, net of taxes of $0, $0 and $(117) 0 0 (185)
Derivative Instruments:      
Net unrealized gains (losses), net of taxes of $(240), $(156) and $200 (900) (597) 371
Reclassification adjustment included in net income, net of taxes of $12, $6 and $21 45 13 39
Defined benefit postretirement plans:      
Net prior service credit arising during period, net of taxes of $1,134, $271 and $675 3,457 830 1,083
Amortization of net prior service credit included in net income, net of taxes of $(475), $(431) and $(604) (1,459) (1,322) (988)
Other comprehensive income (loss) 1,212 (2,142) 522
Total comprehensive Income 16,187 17,811 30,369
Less: Total comprehensive income attributable to noncontrolling interest (1,063) (551) (392)
Total Comprehensive Income Attributable to AT&T $ 15,124 $ 17,260 $ 29,977