LEASES	9 Months Ended
	Sep. 30, 2021
Leases [Abstract]
LEASES	LEASESDuring the nine months ended September 30, 2021, various operating leases commenced, including leases for commercial office space and vehicle service centers. The current portion of operating lease liabilities was $18 million and $37 million as of December 31, 2020 and September 30, 2021, respectively. Cash paid for amounts included in the measurement of operating leases was $9 million and $23 million for the nine months ended September 30, 2020 and 2021, respectively. Operating lease costs were $6 million and $26 million for the nine months ended September 30, 2020 and 2021, respectively.