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Commitments and Contingencies Legal and Regulatory Proceedings (Details) € in Millions, $ in Millions, ₩ in Billions |  |  |  | 3 Months Ended |
--- | --- | --- | --- | --- | ---
Jul. 18, 2019 EUR (€) | Jan. 24, 2018 EUR (€) | Mar. 30, 2017 KRW (₩) | Mar. 30, 2017 USD ($) | Jun. 30, 2019 USD ($) | Dec. 24, 2017 USD ($) | Jun. 27, 2021 USD ($)
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Loss Contingency Accrual |  |  |  |  |  |  | $ 0
KFTC Complaint |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Loss contingency, loss in period |  |  |  | $ 927 |  |  |
KFTC Complaint | Korea (South), Won |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Loss contingency, loss in period | ₩ |  |  | ₩ 1,030 |  |  |  |
Icera Complaint to EC |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Loss contingency, loss in period |  |  |  |  | $ 275 |  |
Per annum interest rate for outstanding fines |  |  |  |  |  |  | 1.50%
Accrual for EC fine - other current liabilities |  |  |  |  |  |  | $ 296
Icera Complaint to EC | Euro Member Countries, Euro |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Loss contingency, loss in period | € | € 242 |  |  |  |  |  |
EC |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Loss contingency, loss in period |  |  |  |  |  | $ 1,200 |
Per annum interest rate for outstanding fines |  |  |  |  |  |  | 1.50%
Accrual for EC fine - other current liabilities |  |  |  |  |  |  | $ 1,200
EC | Euro Member Countries, Euro |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Loss contingency, loss in period | € |  | € 997 |  |  |  |  |

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