Commitments and Contingencies Legal Proceedings (Details) ₩ in Millions, $ in Millions |
3 Months Ended | 6 Months Ended | |
|---|---|---|---|
|
Mar. 30, 2017
USD ($)
|
Mar. 26, 2017
USD ($)
|
Mar. 26, 2017
KRW (₩)
|
|
| Blackberry [Member] | |||
| Loss Contingencies [Line Items] | |||
| Litigation Settlement, Amount | $ 815 | ||
| Loss Contingency, Loss in Period | $ 974 | ||
| KFTC [Member] | Korea (South), Won | |||
| Loss Contingencies [Line Items] | |||
| Loss Contingency, Loss in Period | ₩ | ₩ 1,030,000 | ||
| Subsequent Event [Member] | KFTC [Member] | |||
| Loss Contingencies [Line Items] | |||
| Payment of KFTC Charge | $ 927 |