v3.8.0.1
Changes in Restructuring Liability (Detail)
$ in Millions
 6 Months Ended
Dec. 31, 2017
USD ($)
Restructuring Cost and Reserve [Line Items]  
Balance, as of June 30, 2017 $ 432
Restructuring charges 0
Cash paid (307)
Other (7)
Balance, as of December 31, 2017 118
Severance  
Restructuring Cost and Reserve [Line Items]  
Balance, as of June 30, 2017 373
Restructuring charges 0
Cash paid (292)
Other 0
Balance, as of December 31, 2017 81
Other  
Restructuring Cost and Reserve [Line Items]  
Balance, as of June 30, 2017 59 [1]
Restructuring charges 0 [1]
Cash paid (15) [1]
Other (7) [1]
Balance, as of December 31, 2017 $ 37 [1]
[1] Primarily reflects activities associated with the consolidation of our phone facilities, manufacturing operations, and contract termination costs.