Summary of Significant Accounting Policies (Details)	12 Months Ended
	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Summary of Significant Accounting Policies [Abstract]
Impairment of long-lived assets held-for-use	$ 0	$ 0	$ 0
Impairment of long-lived assets held for sale			36,000,000
Number of reportable segments	1
Disaggregation of Revenue [Line Items]
REVENUES	$ 54,607,000,000	54,022,000,000	$ 51,682,000,000
RDOF subsidy
Disaggregation of Revenue [Line Items]
Government subsidies awarded	1,200,000,000
REVENUES	116,000,000	$ 107,000,000
State grants
Disaggregation of Revenue [Line Items]
Government subsidies awarded	913,000,000
Government subsidies executed agreements	$ 597,000,000