Restructuring Charges - Additional Information (Detail) $ in Millions |
1 Months Ended | 3 Months Ended | 12 Months Ended | |
|---|---|---|---|---|
|
May 31, 2016
Position
|
Sep. 30, 2016
USD ($)
Position
|
Jun. 30, 2016
USD ($)
Position
|
Jun. 30, 2015
USD ($)
|
|
| Restructuring Cost and Reserve [Line Items] | ||||
| Restructuring charges | $ 0 | |||
| Phone Hardware Restructuring Plan | ||||
| Restructuring Cost and Reserve [Line Items] | ||||
| Number of positions eliminated | Position | 7,400 | |||
| Restructuring charges | $ 780 | |||
| Reversal of prior year restructuring charges | $ (21) | |||
| Completion date | Dec. 31, 2016 | |||
| 2016 Restructuring | ||||
| Restructuring Cost and Reserve [Line Items] | ||||
| Restructuring charges | $ 501 | |||
| Completion date | Jun. 30, 2017 | |||
| Number of positions expected to be eliminated | Position | 1,850 | 2,850 | ||