Consolidated Statement Of Operations - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Operating revenues
Total operating revenues	$ 5,160	$ 5,413	$ 5,329
Operating expenses
Selling, general and administrative	1,753	1,768	1,677
Depreciation, amortization and accretion	915	929	895
Loss on impairment of intangible assets	547	3	0
(Gain) loss on asset disposals, net	27	27	26
(Gain) loss on sale of business and other exit costs, net	0	(1)	(2)
(Gain) loss on license sales and exchanges, net	(2)	0	0
Total operating expenses	5,574	5,291	5,068
Operating income (loss)	(414)	122	261
Investment and other income (expense)
Equity in earnings of unconsolidated entities	159	159	182
Interest and dividend income	20	17	11
Interest expense	(244)	(174)	(232)
Other, net	2	1	(1)
Total investment and other income (expense)	(63)	3	(40)
Income (loss) before income taxes	(477)	125	221
Income tax expense	10	53	33
Net income (loss)	(487)	72	188
Less: Net income attributable to noncontrolling interests, net of tax	13	10	32
Net income (loss) attributable to TDS shareholders	(500)	62	156
TDS Preferred Share dividends	69	69	39
Net income (loss) attributable to TDS common shareholders	$ (569)	$ (7)	$ 117
Basic weighted average shares outstanding (in shares)	113	114	115
Basic earnings (loss) per share attributable to TDS common shareholders	$ (5.05)	$ (0.07)	$ 1.03
Diluted weighted average shares outstanding (in shares)	113	114	116
Diluted earnings (loss) per share attributable to TDS common shareholders	$ (5.06)	$ (0.07)	$ 1.00
Service
Operating revenues
Total operating revenues	$ 4,169	$ 4,240	$ 4,216
Operating expenses
Cost of goods and services sold	1,240	1,245	1,267
Equipment and product sales
Operating revenues
Total operating revenues	991	1,173	1,113
Operating expenses
Cost of goods and services sold	$ 1,094	$ 1,320	$ 1,205