Consolidated Statements Of Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Operating Revenues
Total operating revenues	$ 122,336	$ 122,428	$ 120,741
Cost of revenues
Other cost of revenues (exclusive of depreciation and amortization shown separately below)	26,972	26,987	26,839
Selling, general and administrative	28,411	28,874	28,961
Asset impairments and abandonments and restructuring	5,075	1,193	27,498
Depreciation and amortization	20,580	18,777	18,021
Total operating expenses	103,287	98,967	125,328
Operating Income (Loss)	19,049	23,461	(4,587)
Other Income (Expense)
Interest expense	(6,759)	(6,704)	(6,108)
Equity in net income of affiliates	1,989	1,675	1,791
Other income (expense) – net	2,419	1,416	5,810
Total other income (expense)	(2,351)	(3,613)	1,493
Income (Loss) from Continuing Operations Before Income Taxes	16,698	19,848	(3,094)
Income tax expense on continuing operations	4,445	4,225	3,780
Income (Loss) from Continuing Operations	12,253	15,623	(6,874)
Loss from discontinued operations, net of tax	0	0	(181)
Net Income (Loss)	12,253	15,623	(7,055)
Less: Net Income Attributable to Noncontrolling Interest	(1,305)	(1,223)	(1,469)
Net Income (Loss) Attributable to AT&T	10,948	14,400	(8,524)
Less: Preferred Stock Dividends	(202)	(208)	(203)
Net Income (Loss) Attributable to Common Stock	$ 10,746	$ 14,192	$ (8,727)
Basic Earnings (Loss) Per Share from continuing operations	$ 1.49	$ 1.97	$ (1.10)
Basic Loss Per Share from discontinued operations	0	0	(0.03)
Basic Earnings (Loss) Per Share Attributable to Common Stock	1.49	1.97	(1.13)
Diluted Earnings (Loss) Per Share from continuing operations	1.49	1.97	(1.10)
Diluted Loss Per Share from discontinued operations	0	0	(0.03)
Diluted Earnings (Loss) Per Share Attributable to Common Stock	$ 1.49	$ 1.97	$ (1.13)
Service
Operating Revenues
Total operating revenues	$ 100,135	$ 99,649	$ 97,831
Equipment
Operating Revenues
Total operating revenues	22,201	22,779	22,910
Cost of revenues
Cost of goods and services sold	$ 22,249	$ 23,136	$ 24,009