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Debt Instrument, Reclassifications

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Face (par) amount of debt instrument at time of issuance.

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Amount of increase (decrease) in debt instruments, classified as other.

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Face (par) amount of the original debt instrument that was repurchased.

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Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt classified as current. Excludes lease obligation.

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Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt classified as noncurrent. Excludes lease obligation.

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The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

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The cash inflow from a borrowing with the highest claim on the assets of the entity in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle, if longer).

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The cash inflow from a borrowing having initial term of repayment within one year or the normal operating cycle, if longer.

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Amount of cash outflow for short-term and long-term debt. Excludes payment of lease obligation.

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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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The cash outflow for a borrowing having initial term of repayment within one year or the normal operating cycle, if longer.

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Debt - Schedule of Debt Balances and Activity (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Aug. 05, 2025	Aug. 01, 2025
Debt Balances and Activity [Roll Forward]
Long-term debt, proceeds from issuances and borrowings			$ 8,266,000,000
Note Redemptions	$ (1,064,000,000)		(1,064,000,000)
Repayments of long-term debt	(828,000,000)	$ (223,000,000)	(4,564,000,000)	$ (3,169,000,000)
Principal outstanding	10,027,000,000		10,027,000,000
UScellular Wireless Assets Operations \| Master License Agreement
Debt Balances and Activity [Roll Forward]
Principal outstanding					$ 1,700,000,000	$ 1,700,000,000
Total Debt
Debt Balances and Activity [Roll Forward]
Total debt, beginning balance			78,265,000,000
Proceeds from issuances and borrowings			8,266,000,000
Note Redemptions	(3,499,000,000)		(3,499,000,000)
Repayments			(1,064,000,000)
Reclassifications			0
Other			2,228,000,000
Total debt, ending balance	84,196,000,000		84,196,000,000
Third Party
Debt Balances and Activity [Roll Forward]
Short-term debt, proceeds from issuances and borrowings			0
Long-term debt, proceeds from issuances and borrowings			8,266,000,000
Repayments of short-term debt			(1,064,000,000)
Repayments of long-term debt			0
Third Party \| Short-term debt
Debt Balances and Activity [Roll Forward]
Other			(19,000,000)
Third Party \| Long-term debt
Debt Balances and Activity [Roll Forward]
Other			2,246,000,000
Third Party \| Total Debt
Debt Balances and Activity [Roll Forward]
Total debt, beginning balance			76,768,000,000
Proceeds from issuances and borrowings			8,266,000,000
Note Redemptions	(3,499,000,000)		(3,499,000,000)
Repayments			(1,064,000,000)
Reclassifications			0
Other			2,227,000,000
Total debt, ending balance	82,698,000,000		82,698,000,000
Affiliates
Debt Balances and Activity [Roll Forward]
Proceeds from issuances and borrowings			0
Repayments			0
Other			1,000,000
Short-term debt \| Third Party
Debt Balances and Activity [Roll Forward]
Reclassifications			6,348,000,000
Long-term debt \| Third Party
Debt Balances and Activity [Roll Forward]
Reclassifications			(6,348,000,000)
Long-term debt \| Affiliates
Debt Balances and Activity [Roll Forward]
Reclassifications			0
Short-term debt \| Third Party
Debt Balances and Activity [Roll Forward]
Short-term debt, beginning balance			4,068,000,000
Note Redemptions	(3,000,000,000)		(3,000,000,000)
Short-term debt, ending balance	6,333,000,000		6,333,000,000
Long-term debt \| Third Party
Debt Balances and Activity [Roll Forward]
Long-term debt, beginning balance			72,700,000,000
Note Redemptions	(499,000,000)		(499,000,000)
Long-term debt, ending balance	76,365,000,000		76,365,000,000
Long-term debt \| Affiliates
Debt Balances and Activity [Roll Forward]
Total debt, beginning balance			1,497,000,000
Note Redemptions	0		0
Total debt, ending balance	$ 1,498,000,000		$ 1,498,000,000