Commitments and Contingencies - Wireless Spectrum Licenses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Schedule of Investments [Line Items]
Indefinite-Lived License Agreements	$ 38,990,461	$ 38,114,249
Capitalized Interest.
Schedule of Investments [Line Items]
Indefinite-Lived License Agreements	9,502,912
Wireless
Schedule of Investments [Line Items]
Indefinite-Lived License Agreements	29,487,549
DBS Licenses
Schedule of Investments [Line Items]
Indefinite-Lived License Agreements	677,409
700 MHz Licenses
Schedule of Investments [Line Items]
Indefinite-Lived License Agreements	$ 701,803
Certain of 700 MHz Licenses, AWS-4 Licenses, H Block Licenses areas
Schedule of Investments [Line Items]
Minimum Percentage Of Population to whom Five G Services Offered in Each Economic Area	85.00%
Certain of other 700 MHz Licenses, AWS-4 Licenses, H Block Licenses
Schedule of Investments [Line Items]
Minimum Percentage Of Population to whom Five G Services Offered in Each Economic Area	80.00%
Certain of 600 MHz License Areas
Schedule of Investments [Line Items]
Minimum Percentage Of Population to whom Five G Services Offered in Each Economic Area	85.00%
Certain of 600 MHz Licenses
Schedule of Investments [Line Items]
Minimum Percentage Of Population to whom Five G Services Offered in Each Economic Area	80.00%
MHz 700 Licenses and AWS-4 Licenses
Schedule of Investments [Line Items]
Minimum Percentage Of Population for which Five G Services to be Offered, Shall be Extended	70.00%
Minimum Percentage Of Population to whom Five G Services to be Offered to Extend the Final Deadline	80.00%
Minimum Percentage of New Subscribers Provisioned with certified 5G Device	75.00%
Percentage of population for deploy 5G services	80.00%
Certain of AWS-3 license areas
Schedule of Investments [Line Items]
Minimum Percentage Of Population to be Provided with Reliable Signal Coverage	85.00%
Certain of AWS-3 other licenses
Schedule of Investments [Line Items]
Minimum Percentage Of Population to be Provided with Reliable Signal Coverage	80.00%
AWS-4 Licenses
Schedule of Investments [Line Items]
Indefinite-Lived License Agreements	$ 1,928,688
H Block Licenses
Schedule of Investments [Line Items]
Indefinite-Lived License Agreements	$ 1,671,506
Minimum Percentage Of Population for which Five G Services to be Offered, Shall be Extended	75.00%
Minimum Percentage Of Population to whom Five G Services to be Offered to Extend the Final Deadline	80.00%
Minimum Percentage of New Subscribers Provisioned with certified 5G Device	75.00%
Percentage of population for deploy 5G services	80.00%
600 MHz Licenses
Schedule of Investments [Line Items]
Indefinite-Lived License Agreements	$ 6,192,575
Minimum Percentage Of Population for which Five G Services to be Offered, Shall be Extended	75.00%
Minimum Percentage Of Population to whom Five G Services to be Offered to Extend the Final Deadline	80.00%
Minimum Percentage of New Subscribers Provisioned with certified 5G Device	75.00%
Percentage of population for deploy 5G services	80.00%
MVDDS
Schedule of Investments [Line Items]
Indefinite-Lived License Agreements	$ 24,000
28 GHz Licenses
Schedule of Investments [Line Items]
Indefinite-Lived License Agreements	2,883
24 GHz Licenses
Schedule of Investments [Line Items]
Indefinite-Lived License Agreements	11,772
37 Ghz, 39 Ghz and 47 Ghz Licenses
Schedule of Investments [Line Items]
Indefinite-Lived License Agreements	202,392
3550-3650 MHz Licenses
Schedule of Investments [Line Items]
Indefinite-Lived License Agreements	912,200
3.7-3.98 GHz Licenses
Schedule of Investments [Line Items]
Indefinite-Lived License Agreements	2,969
3.45-3.55 GHz Licenses
Schedule of Investments [Line Items]
Indefinite-Lived License Agreements	$ 7,329,093
Acceleration Term of Final Build-Out Requirement, if Interim Build-out Requirement is Not Met	1 year
1695-1710 MHz, 1755-1780 MHz, and 2155-2180 MHz
Schedule of Investments [Line Items]
Indefinite-Lived License Agreements	$ 972
AWS-3 Licenses
Schedule of Investments [Line Items]
Indefinite-Lived License Agreements	$ 9,829,287
Minimum Percentage Of Population for which Five G Services to be Offered, Shall be Extended	75.00%
Minimum Percentage Of Population to whom Five G Services to be Offered to Extend the Final Deadline	80.00%
Minimum Percentage of New Subscribers Provisioned with certified 5G Device	75.00%
Percentage of population for deploy 5G services	80.00%
Capitalized Interest
Schedule of Investments [Line Items]
Indefinite-Lived License Agreements	$ 10,000,000