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Related Parties and Related Commitments and Contingencies - Maximum Loss Exposure (Details) - Jan. 01, 2021 - Flash Ventures $ in Millions, ¥ in Billions | USD ($) | JPY (¥)
--- | --- | ---
Guarantor Obligations [Line Items] |  |
VIE, reporting entity involvement, maximum loss exposure, amount | $ 4,627 |
Notes receivable |  |
Guarantor Obligations [Line Items] |  |
VIE, reporting entity involvement, maximum loss exposure, amount | 1,193 |
Equity investments |  |
Guarantor Obligations [Line Items] |  |
VIE, reporting entity involvement, maximum loss exposure, amount | 665 |
Operating lease guarantees |  |
Guarantor Obligations [Line Items] |  |
Operating lease guarantees | 2,107 | ¥ 217
Inventory and prepayments |  |
Guarantor Obligations [Line Items] |  |
Inventory and prepayments | $ 662 |

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