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Restructuring and Relocation Activities - Additional Information (Detail) $ in Millions |  | 6 Months Ended
--- | --- | ---
Dec. 31, 2017 USD ($) Jobs | Jun. 30, 2016 USD ($)
Restructuring Cost And Reserve [Line Items] |  |
Restructuring expected accrual to pay |  | $ 45
Restructuring expected accrual remaining to pay |  | $ 9
FUSION [Member] |  |
Restructuring Cost And Reserve [Line Items] |  |
Jobs relocation completion date |  | Dec. 31, 2017
Scenario, Forecast [Member] | FUSION [Member] |  |
Restructuring Cost And Reserve [Line Items] |  |
Number of Jobs relocated from Elmwood park to Charlotte | Jobs | 1,300 |
Scenario, Forecast [Member] | FUSION [Member] | Building Cost Of Charlotte Campus |  |
Restructuring Cost And Reserve [Line Items] |  |
Total estimated net cash cost | $ 120 |

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