Consolidated Statement of Operations - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Operating revenues
Total operating revenues	$ 1,263	$ 1,261	$ 2,524	$ 2,518
Operating expenses
Selling, general and administrative	398	421	809	819
Depreciation, amortization and accretion	236	234	470	460
(Gain) loss on asset disposals, net	4	5	8	0
(Gain) loss on sale of business and other exit costs, net	0	0	0	(2)
(Gain) loss on license sales and exchanges, net	0	0	0	(2)
Total operating expenses	1,185	1,213	2,373	2,376
Operating income	78	48	151	142
Investment and other income (expense)
Equity in earnings of unconsolidated entities	44	41	90	85
Interest and dividend income	2	9	8	17
Interest expense	(38)	(43)	(75)	(86)
Other, net	0	0	(1)	1
Total investment and other income	8	7	22	17
Income before income taxes	86	55	173	159
Income tax expense	8	16	12	50
Net income	78	39	161	109
Less: Net income attributable to noncontrolling interests, net of tax	13	6	26	17
Net income attributable to TDS shareholders	$ 65	$ 33	$ 135	$ 92
Basic weighted average shares outstanding (in shares)	114	114	115	114
Basic earnings per share attributable to TDS shareholders (in dollars per share)	$ 0.57	$ 0.29	$ 1.18	$ 0.81
Diluted weighted average shares outstanding (in shares)	115	116	115	116
Diluted earnings per share attributable to TDS shareholders (in dollars per share)	$ 0.56	$ 0.28	$ 1.15	$ 0.78
Service
Operating revenues
Total operating revenues	$ 1,016	$ 1,013	$ 2,042	$ 2,008
Operating expenses
Cost of goods and services	306	304	599	588
Equipment and product sales
Operating revenues
Total operating revenues	247	248	482	510
Operating expenses
Cost of goods and services	$ 241	$ 249	$ 487	$ 513