Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Revenues
Total revenues	$ 88,309	$ 81,400	$ 78,558
Operating expenses
Selling, general and administrative	23,470	20,818	21,311
Gain on disposal group held for sale	0	0	(25)
Impairment expense	278	0	0
Depreciation and amortization	13,508	12,919	12,818
Total operating expenses	70,030	63,390	64,292
Operating income	18,279	18,010	14,266
Other expense, net
Interest expense, net	(3,774)	(3,411)	(3,335)
Other (expense) income, net	(224)	113	68
Total other expense, net	(3,998)	(3,298)	(3,267)
Income before income taxes	14,281	14,712	10,999
Income tax expense	(3,289)	(3,373)	(2,682)
Net income	10,992	11,339	8,317
Other comprehensive income, net of tax
Reclassification of loss from cash flow hedges, net of tax effect of $65, $60 and $56	190	176	163
(Losses) gains on fair value hedges, net of tax effect of $(64), $5 and $0	(187)	16	0
Unrealized (loss) gain on foreign currency translation adjustment, net of tax effect of $0, $0 and $0	(1)	0	9
Actuarial gain (loss), net of amortization and reclassification, on pension and other postretirement benefits, net of tax effect of $2, $(29) and $(31)	7	(85)	(90)
Other comprehensive income	9	107	82
Total comprehensive income	$ 11,001	$ 11,446	$ 8,399
Earnings per share
Basic (in USD per share)	$ 9.75	$ 9.70	$ 7.02
Diluted (in USD per share)	$ 9.72	$ 9.66	$ 6.93
Weighted-average shares outstanding
Basic (in shares)	1,127,984,348	1,169,195,373	1,185,121,562
Diluted (in shares)	1,131,076,251	1,173,213,898	1,200,286,264
Service
Revenues
Total revenues	$ 71,306	$ 66,178	$ 63,241
Operating expenses
Cost of services, exclusive of depreciation and amortization shown separately below	11,497	10,771	11,655
Postpaid revenues
Revenues
Total revenues	57,932	52,340	48,692
Prepaid revenues
Revenues
Total revenues	10,497	10,399	9,767
Wholesale and other service revenues
Revenues
Total revenues	2,877	3,439	4,782
Equipment revenues
Revenues
Total revenues	15,972	14,263	14,138
Operating expenses
Cost of services, exclusive of depreciation and amortization shown separately below	21,277	18,882	18,533
Other revenues
Revenues
Total revenues	$ 1,031	$ 959	$ 1,179

Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Operating activities
Net income	$ 10,992	$ 11,339	$ 8,317
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	13,508	12,919	12,818
Stock-based compensation expense	829	649	667
Deferred income tax expense	2,864	3,120	2,600
Bad debt expense	1,370	1,192	898
Losses from sales of receivables	58	62	165
Impairment expense	278	0	0
Loss on remeasurement of disposal group held for sale	0	0	9
Changes in operating assets and liabilities
Accounts receivable	(755)	(3,088)	(5,038)
Equipment installment plan receivables	(877)	(523)	170
Inventory	(615)	131	197
Operating lease right-of-use assets	3,635	3,480	3,721
Other current and long-term assets	(1,488)	(411)	(358)
Accounts payable and accrued liabilities	1,542	(2,041)	(1,126)
Short- and long-term operating lease liabilities	(3,457)	(3,879)	(3,785)
Other current and long-term liabilities	(379)	(678)	(839)
Other, net	445	21	143
Net cash provided by operating activities	27,950	22,293	18,559
Investing activities
Purchases of property and equipment, including capitalized interest of $(43), $(34) and $(104)	(9,955)	(8,840)	(9,801)
Purchases of spectrum licenses and other intangible assets, including deposits	(2,568)	(3,471)	(1,010)
Proceeds from the sale of property, equipment and intangible assets	2,168	99	153
Proceeds from sales of tower sites	0	0	12
Proceeds related to beneficial interests in securitization transactions	0	3,579	4,816
Acquisition of companies, net of cash acquired	(3,523)	(373)	0
Investments in unconsolidated affiliates, net	(4,056)	(18)	(7)
Other, net	327	(48)	8
Net cash used in investing activities	(17,607)	(9,072)	(5,829)
Financing activities
Proceeds from issuance of long-term debt, net	12,010	8,587	8,446
Repayments of financing lease obligations	(1,252)	(1,367)	(1,227)
Repayments of long-term debt	(6,199)	(5,073)	(5,051)
Repurchases of common stock	(9,974)	(11,228)	(13,074)
Dividends on common stock	(4,121)	(3,300)	(747)
Tax withholdings on share-based awards	(434)	(269)	(297)
Other, net	(111)	(165)	(147)
Net cash used in financing activities	(10,081)	(12,815)	(12,097)
Effect of exchange rate changes on cash and cash equivalents, including restricted cash	1	0	0
Change in cash and cash equivalents, including restricted cash	263	406	633
Cash and cash equivalents, including restricted cash
Beginning of period	5,713	5,307	4,674
End of period	$ 5,976	$ 5,713	$ 5,307

Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Current assets
Cash and cash equivalents	$ 5,598	$ 5,409
Accounts receivable, net of allowance for credit losses of $226 and $176	4,874	4,276
Equipment installment plan receivables, net of allowance for credit losses and imputed discount of $733 and $656	4,997	4,379
Inventory	2,405	1,607
Prepaid expenses	1,215	880
Other current assets	5,372	1,853
Total current assets	24,461	18,404
Property and equipment, net	38,333	38,533
Operating lease right-of-use assets	25,692	25,398
Financing lease right-of-use assets	2,760	3,091
Goodwill	13,678	13,005
Spectrum licenses	98,032	100,558
Other intangible assets, net	3,843	2,512
Equipment installment plan receivables due after one year, net of allowance for credit losses and imputed discount of $213 and $158	2,683	2,209
Other assets	9,755	4,325
Total assets	219,237	208,035
Current liabilities
Accounts payable and accrued liabilities	10,280	8,463
Short-term debt	5,135	4,068
Deferred revenue	1,533	1,222
Short-term operating lease liabilities	3,814	3,281
Short-term financing lease liabilities	1,163	1,175
Other current liabilities	2,575	1,965
Total current liabilities	24,500	20,174
Long-term debt	81,147	74,197
Tower obligations	3,532	3,664
Deferred tax liabilities	19,583	16,700
Operating lease liabilities	26,371	26,408
Financing lease liabilities	1,107	1,151
Other long-term liabilities	3,794	4,000
Total long-term liabilities	135,534	126,120
Commitments and contingencies (Note 18)
Stockholders' equity
Common stock, par value $0.00001 per share, 2,000,000,000 shares authorized; 1,275,774,235 and 1,271,074,364 shares issued, 1,106,930,661 and 1,144,579,681 shares outstanding	0	0
Additional paid-in capital	69,460	68,798
Treasury stock, at cost, 168,843,574 and 126,494,683 shares	(30,545)	(20,584)
Accumulated other comprehensive loss	(848)	(857)
Retained earnings	21,136	14,384
Total stockholders' equity	59,203	61,741
Total liabilities and stockholders' equity	219,237	208,035
Nonrelated Party
Current liabilities
Long-term debt	79,649	72,700
Related Party
Current liabilities
Long-term debt	$ 1,498	$ 1,497