Debt Instrument, Fees

No definition available.

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- Definition

Debt Instrument, Number Of Series

+ References

No definition available.

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- Definition

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

+ References

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- Definition

Net increase or decrease in the carrying amount of the debt instrument for the period.

+ References

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

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

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Long-Term Debt and Credit Facilities - Exchange Offers (Details) $ in Millions		1 Months Ended	3 Months Ended	12 Months Ended
	Sep. 24, 2024 USD ($) series	Nov. 30, 2024 USD ($)	Mar. 31, 2024 USD ($)	Dec. 31, 2024 USD ($)
Long-term Debt and Credit Facilities
Debt instrument, face amount				$ 11,925
Repayments of debt			$ 2,258
Reduction of debt	$ 60	$ 393
Debt instrument, fees				$ 17
Senior Notes
Long-term Debt and Credit Facilities
Debt instrument, face amount	848	393
10.000% Secured Notes Due 2032 \| Senior Notes
Long-term Debt and Credit Facilities
Debt instrument, face amount	$ 438
Stated interest rate (as a percent)	10.00%
Senior Unsecured Notes Due 2026 To 2029 \| Senior Notes
Long-term Debt and Credit Facilities
Debt instrument, face amount	$ 491
Repayments of debt	$ 14
Number of series \| series	4
10.000% Second Lien Notes Due 2032 \| Senior Notes \| Level 3 Financing, Inc.
Long-term Debt and Credit Facilities
Debt instrument, face amount	$ 350
Stated interest rate (as a percent)	10.00%
Senior Unsecured Notes Due 2027 \| Senior Notes \| Level 3 Financing, Inc.
Long-term Debt and Credit Facilities
Debt instrument, face amount	$ 357
Number of series \| series	2
5.125% Senior Notes due 2026 \| Senior Notes
Long-term Debt and Credit Facilities
Debt instrument, face amount	$ 137	$ 5
Stated interest rate (as a percent)	5.125%	5.125%
4.000% Senior Secured Notes due 2027 (unsecured) \| Senior Notes
Long-term Debt and Credit Facilities
Debt instrument, face amount	$ 188	$ 4
Stated interest rate (as a percent)	4.00%	4.00%
6.875% Debentures, Series G, due 2028 \| Senior Notes
Long-term Debt and Credit Facilities
Debt instrument, face amount	$ 80	$ 24
Stated interest rate (as a percent)	6.875%	6.875%		6.875%
4.500% Senior Notes due 2029 \| Senior Notes
Long-term Debt and Credit Facilities
Debt instrument, face amount	$ 86
Stated interest rate (as a percent)	4.50%			4.50%
3.400% Senior Secured Notes due 2027 (unsecured) \| Senior Notes \| Level 3 Financing, Inc.
Long-term Debt and Credit Facilities
Debt instrument, face amount	$ 77	$ 1
Stated interest rate (as a percent)	3.40%	3.40%
4.625% Senior Notes due 2027 \| Senior Notes \| Level 3 Financing, Inc.
Long-term Debt and Credit Facilities
Debt instrument, face amount	$ 280	$ 48
Stated interest rate (as a percent)	4.625%	4.625%