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Repurchases of Lumen Common Stock (Details) - USD ($)	3 Months Ended		9 Months Ended
Repurchases of Lumen Common Stock (Details) - USD ($)	Sep. 30, 2023	Dec. 31, 2022	Sep. 30, 2023
Equity [Abstract]
Repurchase program, period (in years)		2 years
Repurchase program, authorized amount	$ 1,300,000,000	$ 1,500,000,000	$ 1,300,000,000
Number of shares repurchased	0		0

Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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