Consolidated Statement of Changes in Equity - USD ($) $ in Millions	Total	Series A Common and Common shares	Additional paid-in capital	Treasury shares	Retained earnings	Total UScellular shareholders' equity	Noncontrolling interests
Beginning balance at Dec. 31, 2020	$ 4,426	$ 88	$ 1,651	$ (67)	$ 2,739	$ 4,411	$ 15
Net income attributable to UScellular shareholders	155				155	155
Net income attributable to noncontrolling interests classified as equity	4					0	4
Repurchase of Common Shares	(31)			(31)		(31)
Incentive and compensation plans	12		27	30	(45)	12
Distributions to noncontrolling interests	(3)					0	(3)
Ending balance at Dec. 31, 2021	4,563	88	1,678	(68)	2,849	4,547	16
Net income attributable to UScellular shareholders	30				30	30
Net income attributable to noncontrolling interests classified as equity	3					0	3
Repurchase of Common Shares	(43)			(43)		(43)
Incentive and compensation plans	20		25	13	(18)	20
Distributions to noncontrolling interests	(3)					0	(3)
Ending balance at Dec. 31, 2022	4,570	88	1,703	(98)	2,861	4,554	16
Net income attributable to UScellular shareholders	54				54	54
Net income attributable to noncontrolling interests classified as equity	3					0	3
Incentive and compensation plans	18		23	18	(23)	18
Distributions to noncontrolling interests	(3)					0	(3)
Ending balance at Dec. 31, 2023	$ 4,642	$ 88	$ 1,726	$ (80)	$ 2,892	$ 4,626	$ 16