Intangible Assets - Narrative (Details) $ in Millions			12 Months Ended
	Dec. 31, 2024 USD ($)	Jan. 14, 2022 USD ($) license	Dec. 31, 2021 USD ($) license	Dec. 31, 2020 USD ($) license	Dec. 31, 2019 USD ($)
Auction 103
Indefinite-lived Intangible Assets [Line Items]
Licenses won | license				237
Total winning bid				$ 146
FCC Upfront Payment					$ 5
Auction 107
Indefinite-lived Intangible Assets [Line Items]
Licenses won | license			254
Total winning bid			$ 1,283
FCC Upfront Payment				$ 30
Cash paid for licenses			36
Auction 107 | Subsequent Event
Indefinite-lived Intangible Assets [Line Items]
Cash paid for licenses	$ 181
Auction 110
Indefinite-lived Intangible Assets [Line Items]
FCC Upfront Payment			$ 20
Auction 110 | Subsequent Event
Indefinite-lived Intangible Assets [Line Items]
Licenses won | license		380
Total winning bid		$ 580