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RELATED PARTY TRANSACTIONS - Narrative (Details) $ / shares in Units, shares in Millions		3 Months Ended		9 Months Ended
	Nov. 15, 2021 $ / shares shares	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($) vehicle	Sep. 30, 2021 USD ($)	Oct. 31, 2021 USD ($)	Jul. 31, 2021 USD ($)
2021 Convertible Notes
Related Party Transaction [Line Items]
Convertible notes converted into common stock (in shares) \| shares	38
Conversion price (in USD per share) \| $ / shares	$ 66.30
2021 Convertible Notes \| Convertible Debt
Related Party Transaction [Line Items]
Principal amount			$ 2,500,000,000		$ 2,500,000,000		$ 2,500,000,000
Notes 2026 \| Senior Notes
Related Party Transaction [Line Items]
Principal amount						$ 1,250,000,000
Principal Owner \| Amazon
Related Party Transaction [Line Items]
Number of electric delivery vehicles ordered \| vehicle				100,000
Revenue from related parties				$ 133,000,000
Due from related parties		$ 68,000,000		68,000,000
Principal Owner \| 2021 Convertible Notes \| Convertible Debt \| Amazon
Related Party Transaction [Line Items]
Principal amount							490,000,000
Principal Owner \| 2021 Convertible Notes \| Convertible Debt \| Ford
Related Party Transaction [Line Items]
Principal amount							415,000,000
Principal Owner \| 2021 Convertible Notes \| Convertible Debt \| T Rowe Price
Related Party Transaction [Line Items]
Principal amount							$ 400,000,000
Principal Owner \| Notes 2026 \| Senior Notes \| T Rowe Price
Related Party Transaction [Line Items]
Principal amount						$ 285,000,000
Principal Owner \| Hosting, Storage, and Compute Services \| Amazon
Related Party Transaction [Line Items]
Expenses		$ 9,000,000	$ 1,000,000	$ 43,000,000	$ 12,000,000