AT&T (T) 10-K 25 Feb 10 2010 FY Annual report Financial data

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME (USD $)
In Millions, except Per Share data	12 Months Ended Dec. 31, 2009	12 Months Ended Dec. 31, 2008	12 Months Ended Dec. 31, 2007
Operating Revenues
Wireless service	$48,563	$44,249	$38,568
Voice	32,314	37,321	40,798
Data	25,454	24,373	23,206
Directory	4,724	5,416	4,806
Other	11,963	12,669	11,550
Total operating revenues	123,018	124,028	118,928
Operating Expenses
Cost of services and sales (exclusive of depreciation and amortization shown separately below)	50,405	49,556	46,801
Selling, general and administrative	31,407	31,526	30,146
Depreciation and amortization	19,714	19,883	21,577
Total operating expenses	101,526	100,965	98,524
Operating Income	21,492	23,063	20,404
Other Income (Expense)
Interest expense	(3,379)	(3,390)	(3,507)
Equity in net income of affiliates	734	819	692
Other income (expense) - net	152	(328)	810
Total other income (expense)	(2,493)	(2,899)	(2,005)
Income Before Income Taxes	18,999	20,164	18,399
Income taxes	6,156	7,036	6,252
Net Income	12,843	13,128	12,147
Less: Net Income Attributable to Noncontrolling Interest	(308)	(261)	(196)
Net Income Attributable to AT&T	$12,535	$12,867	$11,951
Basic Earnings Per Share	2.12	2.17	1.95
Diluted Earnings Per Share	2.12	2.16	1.94

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS (USD $)
In Millions	Dec. 31, 2009	Dec. 31, 2008
Current Assets
Cash and cash equivalents	$3,802	$1,792
Accounts receivable - net of allowances for doubtful accounts of $1,205 and $1,270	14,978	16,047
Prepaid expenses	1,572	1,538
Deferred income taxes	1,274	1,014
Other current assets	2,708	2,165
Total current assets	24,334	22,556
Property, Plant and Equipment - Net
Property, Plant and Equipment - Net	100,093	99,088
Goodwill	73,259	71,829
Licenses	48,759	47,306
Customer Lists and Relationships - Net	7,420	10,582
Other Intangible Assets - Net	5,644	5,824
Investments in Equity Affiliates	2,921	2,332
Other Assets	6,322	5,728
Total Assets	268,752	265,245
Current Liabilities
Debt maturing within one year	7,361	14,119
Accounts payable and accrued liabilities	20,999	20,032
Advanced billing and customer deposits	4,170	3,849
Accrued taxes	1,696	1,874
Dividends payable	2,479	2,416
Total current liabilities	36,705	42,290
Long-Term Debt	64,720	60,872
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes	23,803	19,196
Postemployment benefit obligation	27,849	31,930
Other noncurrent liabilities	13,350	14,207
Total deferred credits and other noncurrent liabilities	65,002	65,333
Stockholders' Equity
Common stock ($1 par value, 14,000,000,000 authorized at December 31, 2009 and 7,000,000,000 authorized at December 31, 2008: issued 6,495,231,088 at December 31, 2009 and 2008)	6,495	6,495
Additional paid-in-capital	91,707	91,728
Retained earnings	39,366	36,591
Treasury shares (593,300,187 at December 31, 2009, and 602,221,825 at December 31, 2008, at cost)	(21,260)	(21,410)
Accumulated other comprehensive loss	(14,408)	(17,057)
Noncontrolling interest	425	403
Total stockholders' equity	102,325	96,750
Total Liabilities and Stockholders' Equity	$268,752	$265,245

PARENTHETICAL DATA TO THE CONSO

PARENTHETICAL DATA TO THE CONSOLIDATED BALANCE SHEETS (USD $)
In Millions, except Share data	Dec. 31, 2009	Dec. 31, 2008
Current Assets
Allowances for doubtful accounts	$1,205	$1,270
Stockholders' Equity
Common shares issued - par value	$1	$1
Common stock authorized	14,000,000,000	7,000,000,000
Common Stock Shares Issued	6,495,231,088	6,495,231,088
Treasury shares issued	593,300,187	602,221,825

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)
In Millions	12 Months Ended Dec. 31, 2009	12 Months Ended Dec. 31, 2008	12 Months Ended Dec. 31, 2007
Operating Activities
Net Income	$12,843	$13,128	$12,147
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	19,714	19,883	21,577
Undistributed earnings from investments in equity affiliates	(419)	(654)	(297)
Provision for uncollectible accounts	1,763	1,796	1,617
Deferred income tax expense (benefit)	2,104	5,889	(240)
Net (gain) loss from impairment on sale of investments	0	517	(11)
Gain on license exchange	0	0	(409)
Changes in operating assets and liabilities:
Accounts receivable	(454)	(1,421)	(1,491)
Other current assets	(355)	827	(1,020)
Accounts payable and accrued liabilities	2,372	(5,563)	672
Share-based payment excess tax benefit	0	(15)	(173)
Less: Net Income Attributable to Noncontrolling Interest	(308)	(261)	(196)
Other - net	(2,815)	(470)	2,066
Total adjustments	21,602	20,528	22,095
Net Cash Provided by Operating Activities	34,445	33,656	34,242
Investing Activities
Capital expenditures	(16,595)	(19,676)	(17,717)
Interest during construction	(740)	(659)	(171)
Acquisitions, net of cash acquired	(983)	(10,972)	(2,873)
Dispositions	287	1,615	1,594
Sale of securities, net of investments	55	68	455
Sale of other investments	0	436	0
Other	51	45	36
Net Cash Used in Investing Activities	(17,925)	(29,143)	(18,676)
Financing Activities
Net change in short-term borrowings with original maturities of three months or less	(3,910)	2,017	(3,411)
Issuance of long-term debt	8,161	12,416	11,367
Repayment of long-term debt	(8,654)	(4,010)	(6,772)
Purchase of treasury shares	0	(6,077)	(10,390)
Issuance of treasury shares	28	319	1,986
Dividends paid	(9,670)	(9,507)	(8,743)
Share-based payment excess tax benefit	0	15	173
Other	(465)	136	(224)
Net Cash Used in Financing Activities	(14,510)	(4,691)	(16,014)
Net increase (decrease) in cash and cash equivalents	2,010	(178)	(448)
Cash and cash equivalents beginning of year	1,792	1,970	2,418
Cash and Cash Equivalents End of Year	$3,802	$1,792	$1,970

CONSOLIDATED STATEMENTS OF CHAN

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (USD $)
In Millions, except Share data	Common Stock	Additional Paid-in Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Income (Loss), net of tax	Noncontrolling Interest	Total Comprehensive Income (Loss) , net of tax	Total
Balance at beginning of year at Dec. 31, 2006	$6,495	$91,352	$30,375	($7,368)	($5,314)	$386		$115,926
Shares outstanding balance at beginning of year at Dec. 31, 2006	6,495			(256)
Issuance of shares		225		2,075
Issuance of treasury shares				72
Share-based payments		61
Purchase of shares				(10,390)
Purchase of shares - shares				(267)
Net Income attributable to AT&T			11,951				11,951	11,951
Other comprehensive income (loss) attributable to AT&T					4,934		4,934
Net income attributable to noncontrolling interest						196	196	196
Dividends to stockholders			(8,945)
Adoption of FASB guidance related to unrecognized tax benefits			(50)
Other			(34)
Distributions						(205)
Foreign currency translation adjustments, net of taxes					19
Available-for-sale securities, Unrealized gains (losses), net of taxes					65
Available-for-sale securities, Less reclassification adjustment realized in net income, net of taxes					(35)
Cash flow hedges, Unrealized gains (losses), net of taxes					(71)
Cash flow hedges, Less reclassification adjustment realized in net income, net of taxes					17
Defined benefit postretirement plans, Net actuarial gains and prior service cost arising during period, net of taxes					4,734
Defined benefit postretirement plans, Amortization of net actuarial loss and prior service benefit included in net income, net of taxes					206
Defined benefit postretirement plans, Other					(1)
Translation adjustments applicable to noncontrolling interest						3
Comprehensive income (loss) attributable to AT&T							16,885
Other comprehensive income (loss) attributable to noncontrolling interest, per above					4,934	3	3
Total Comprehensive Income (Loss)							199	17,084
Shares outstanding balance at end of year at Dec. 31, 2007	6,495			(451)
Balance at end of year at Dec. 31, 2007	6,495	91,638	33,297	(15,683)	(760)	760	0	115,747
Issuance of shares		87		350
Issuance of treasury shares				13
Share-based payments		3
Purchase of shares				(6,077)
Purchase of shares - shares				(164)
Net Income attributable to AT&T			12,867				12,867	12,867
Other comprehensive income (loss) attributable to AT&T					(16,677)		(16,677)
Net income attributable to noncontrolling interest						261	261	261
Dividends to stockholders			(9,506)
Adoption of FASB guidance related to unrecognized tax benefits			0
Other			(67)
Distributions						(260)
Foreign currency translation adjustments, net of taxes					(443)
Available-for-sale securities, Unrealized gains (losses), net of taxes					(259)
Available-for-sale securities, Less reclassification adjustment realized in net income, net of taxes					(16)
Cash flow hedges, Unrealized gains (losses), net of taxes					(274)
Cash flow hedges, Less reclassification adjustment realized in net income, net of taxes					17
Defined benefit postretirement plans, Net actuarial gains and prior service cost arising during period, net of taxes					(15,582)
Defined benefit postretirement plans, Amortization of net actuarial loss and prior service benefit included in net income, net of taxes					(120)
Defined benefit postretirement plans, Other					0
Translation adjustments applicable to noncontrolling interest						22
Comprehensive income (loss) attributable to AT&T							(3,810)
Other comprehensive income (loss) attributable to noncontrolling interest, per above					(16,677)	22	22
Total Comprehensive Income (Loss)							283	(3,527)
Shares outstanding balance at end of year at Dec. 31, 2008	6,495			(602)
Balance at end of year at Dec. 31, 2008	6,495	91,728	36,591	(21,410)	(34,114)	806		96,750
Issuance of shares		29		150
Issuance of treasury shares				9
Share-based payments		(50)
Purchase of shares				0
Purchase of shares - shares				0
Net Income attributable to AT&T			12,535				12,535	12,535
Other comprehensive income (loss) attributable to AT&T					2,649		2,649
Net income attributable to noncontrolling interest						308	308	308
Dividends to stockholders			(9,733)
Adoption of FASB guidance related to unrecognized tax benefits			0
Other			(27)
Distributions						(285)
Foreign currency translation adjustments, net of taxes					151
Available-for-sale securities, Unrealized gains (losses), net of taxes					176
Available-for-sale securities, Less reclassification adjustment realized in net income, net of taxes					48
Cash flow hedges, Unrealized gains (losses), net of taxes					610
Cash flow hedges, Less reclassification adjustment realized in net income, net of taxes					15
Defined benefit postretirement plans, Net actuarial gains and prior service cost arising during period, net of taxes					1,397
Defined benefit postretirement plans, Amortization of net actuarial loss and prior service benefit included in net income, net of taxes					252
Defined benefit postretirement plans, Other					0
Translation adjustments applicable to noncontrolling interest						(1)
Comprehensive income (loss) attributable to AT&T							15,184
Other comprehensive income (loss) attributable to noncontrolling interest, per above					2,649	(1)	(1)
Total Comprehensive Income (Loss)							307	15,491
Shares outstanding balance at end of year at Dec. 31, 2009	6,495			(593)
Balance at end of year at Dec. 31, 2009	$6,495	$91,707	$39,366	($21,260)	($14,408)	$425	$0	$102,325

1_PARENTHETICAL DATA TO THE CON

PARENTHETICAL DATA TO THE CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (USD $)
In Millions, except Per Share data	1/1/2009 - 12/31/2009	1/1/2008 - 12/31/2008	1/1/2007 - 12/31/2007
Statement of Stockholders' Equity [Abstract]
Foreign currency translation adjustments (taxes)	$72	($239)	$10
Unrealized gains (losses) on available-for-sale securities (taxes)	84	(139)	35
Less reclassification adjustment realized in net income, available-for-sale securities (taxes)	23	(9)	(19)
Unrealized gains (losses) on cash flow hedges (taxes)	329	(148)	(38)
Less reclassification adjustment realized in net income, cash flow hedges (taxes)	8	9	9
Net actuarial gains (losses) and prior service benefit (cost) arising during period (taxes)	1,044	(9,298)	3,411
Amortization of net actuarial loss and prior service benefit included in net income (taxes)	$157	($74)	$125
Diluted Earnings Per Share	2.12	2.16	1.94

NOTE 1. SUMMARY OF SIGNIFICANT

NOTE 1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
	12 Months Ended Dec. 31, 2009 USD / shares
Notes to Financial Statements [Abstract]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	NOTE 1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Basis of PresentationThroughout this document, ATT Inc. is referred to as ATT, we or the Company. The consolidated financial statements have been prepared pursuant to Regulation S-X and other applicable rules of the Securities and Exchange Commission. The consolidated financial statements include the accounts of the Company and our majority-owned subsidiaries and affiliates. Our subsidiaries and affiliates operate in the communications services industry both domestically and internationally, providing wireless and wireline communications services and equipment, managed networking, wholesale services, and advertising solutions. All significant intercompany transactions are eliminated in the consolidation process. Investments in partnerships and less-than-majority-owned subsidiaries where we have significant influence are accounted for under the equity method. Earnings from certain foreign equity investments accounted for using the equity method are included for periods ended within up to one month of our year-end (see Note 7). The preparation of financial statements in conformity with U.S. generally accepted accounting principles (GAAP) requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes, including estimates of probable losses and expenses. Actual results could differ from those estimates. We have reclassified certain amounts in prior-period financial statements to conform to the current periods presentation. Recent Accounting Standards Accounting Standards CodificationIn June 2009, the Financial Accounting Standards Board (FASB) issued standards that established the FASB Accounting Standards Codification (ASC or Codification) as the source of authoritative GAAP by the FASB for nongovernmental entities. The ASC supersedes all non-SEC accounting and reporting standards that existed at the ASCs effective date. The FASB uses Accounting Standards Updates (ASU) to amend the ASC. We refer to ASUs throughout our interim and annual reports where deemed relevant and make general references to pre-Codification standards (e.g., GAAP standards for acquisitions). These standards were effective for interim and annual periods ending after September 15, 2009 (i.e., the quarterly period ended September 30, 2009, for us). Subsequent EventsIn May 2009, the FASB issued a standard that established general standards of accounting for and disclosing events that occur after the balance sheet date but before financial statements are issued or are available for issuance. They were effective for interim and annual periods ending after June 15, 2009 (i.e., the quarterly period ended June 30, 2009, for us). In preparing the accompanying audited consolidated financial statements, we have reviewed all known events that have occurred after December 31, 2009, and through February 25, 2010, the filing date of our Annual Report on Form 10-K, for inclusion in the financial statements and footnotes. Noncontrolling Interests ReportingIn December 2007, the FASB issued a standard that requires noncontrolling interests held b

NOTE 2. ACQUISITIONS, DISPOSITI

NOTE 2. ACQUISITIONS, DISPOSITIONS AND OTHER ADJUSTMENTS
	12 Months Ended Dec. 31, 2009 USD / shares
Notes to Financial Statements [Abstract]
ACQUISITIONS, DISPOSITIONS, VALUATION AND OTHER ADJUSTMENTS	NOTE 2. ACQUISITIONS, DISPOSITIONS, AND OTHER ADJUSTMENTS Acquisitions CentennialIn November 2009, we acquired the assets of Centennial, a regional provider of wireless and wired communications services with approximately 865,000 customers as of December 31, 2009. Total consideration of $2,961 included $955 in cash for the redemption of Centennials outstanding common stock and liquidation of outstanding stock options and $2,006 for our acquisition of Centennials outstanding debt (including liabilities related to assets subject to sale, as discussed below), of which we repaid $1,957 after closing in 2009. The preliminary fair value measurement of Centennials net assets at the acquisition date resulted in the recognition of $1,276 of goodwill, $647 of spectrum licenses, and $273 of customer lists and other intangible assets for the Wireless segment. The Wireline segment added $339 of goodwill and $174 of customer lists and other intangible assets from the acquisition. The acquisition of Centennial impacted our Wireless and Wireline segments, and we have included Centennials operations in our consolidated results since the acquisition date. As the value of certain assets and liabilities are preliminary in nature, they are subject to adjustment as additional information is obtained about the facts and circumstances that existed at the acquisition date. When the valuation is final, any changes to the preliminary valuation of acquired assets and liabilities could result in adjustments to identified intangibles and goodwill. See Notes 6 and 8 for additional information regarding the impact of the Centennial acquisition on our goodwill and other intangibles and our long-term debt repayment for 2009. Wireless Properties TransactionsIn May 2009, we announced a definitive agreement to acquire certain wireless assets from Verizon Wireless (VZ) for approximately $2,350 in cash. The assets primarily represent former Alltel Wireless assets. We will acquire wireless properties, including licenses and network assets, serving approximately 1.5 million subscribers in 79 service areas across 18 states. In October 2009, the Department of Justice (DOJ) cleared our acquisition of Centennial, subject to the DOJs condition that we divest Centennials operations in eight service areas in Louisiana and Mississippi. We are in the process of finalizing definitive agreements and seeking regulatory approvals to sell all eight Centennial service areas ultimately identified in that ruling. We anticipate we will close the sales during the first half of 2010. As of December 31, 2009, the fair value of the assets subject to the sale, net of related liabilities, was $282. These net assets include property, plant and equipment, spectrum licenses, customer lists and other intangible assets, and working capital, which are not deemed material for isolated presentation as assets held for sale and liabilities related to assets held for sale in our consolidated balance sheet as of December 31, 2009, and we included these net assets in our Other current assets balance. DobsonIn November 2007, we acquired Dobson for approximately $2,500. Under the purchase method of account

NOTE 3. EARNINGS PER SHARE

NOTE 3. EARNINGS PER SHARE
	12 Months Ended Dec. 31, 2009 USD / shares
Notes to Financial Statements [Abstract]
EARNINGS PER SHARE	NOTE 3. EARNINGS PER SHARE A reconciliation of the numerators and denominators of basic earnings per share and diluted earnings per share for income from continuing operations for the years ended December31,2009, 2008 and 2007, are shown in the table below: Year Ended December 31, 2009 2008 2007 Numerators Numerator for basic earnings per share: Net income attributable to ATT $ 12,535 $ 12,867 $ 11,951 Dilutive potential common shares: Other share-based payment 10 9 8 Numerator for diluted earnings per share $ 12,545 $ 12,876 $ 11,959 Denominators (000,000) Denominator for basic earnings per share: Weighted-average number of common shares outstanding 5,900 5,927 6,127 Dilutive potential common shares: Stock options 3 9 24 Other share-based payment 21 22 19 Denominator for diluted earnings per share 5,924 5,958 6,170 Basic earnings per share $ 2.12 $ 2.17 $ 1.95 Diluted earnings per share $ 2.12 $ 2.16 $ 1.94 At December 31, 2009, 2008 and 2007, we had issued and outstanding options to purchase approximately 178 million, 204 million and 231 million shares of ATT common stock. The exercise prices of options to purchase a weighted-average of 163 million, 144 million and 93 million shares in 2009, 2008, and 2007 were above the average market price of ATT stock. Accordingly, we did not include these amounts in determining the dilutive potential common shares for the respective periods. At December 31, 2009, the exercise price of 19 million share options was below market price.

NOTE 4. SEGMENT INFORMATION

NOTE 4. SEGMENT INFORMATION
	12 Months Ended Dec. 31, 2009 USD / shares
Notes to Financial Statements [Abstract]
SEGMENT INFORMATION	NOTE 4. SEGMENT INFORMATION Our segments are strategic business units that offer different products and services over various technology platforms and are managed accordingly. Our operating segment results presented in Note 4 and discussed below for each segment follow our internal management reporting. We analyze our various operating segments based on segment income before income taxes. Interest expense and other income (expense) net are managed only on a total company basis and are, accordingly, reflected only in consolidated results. Therefore, these items are not included in the calculation of each segments percentage of our consolidated results. The customers and long-lived assets of our reportable segments are predominantly in the United States. We have four reportable segments: (1)Wireless, (2)Wireline, (3)Advertising Solutions and (4)Other. The Wireless segment uses our nationwide network to provide consumer and business customers with wireless voice and advanced data communications services. The Wireline segment uses our regional, national and global network to provide consumer and business customers with landline voice and data communications services, ATT U-verseSM TV, high-speed broadband and voice services (U-verse) and managed networking to business customers. Additionally, we offer satellite television services through our agency arrangements. The Advertising Solutions segment includes our directory operations, which publish Yellow and White Pages directories and sell directory advertising and Internet-based advertising and local search. This segment includes the results of YELLOWPAGES.COM, LLC (YPC), which was a joint venture with BellSouth prior to the December 29, 2006 acquisition and is now a wholly-owned subsidiary of ATT. For segment reporting disclosure, we have carried forward the deferred revenue and deferred cost balances for BellSouth at the acquisition date in order to reflect how the segment is managed. This is different for consolidated reporting purposes where BellSouth deferred revenue and expenses from directories published during the 12-month period ending with the December 29, 2006 acquisition date, are not recognized and therefore were not included in the opening balance sheet. For management reporting purposes, we continue to amortize these balances over the life of the directory. Thus, our Advertising Solutions segment results in 2007 include revenue of $964 and expenses of $308, related to directories published in the Southeast region during 2006, prior to our acquisition of BellSouth. These amounts are eliminated in the consolidation and elimination column in the following reconciliation. The Other segment includes results from Sterling Commerce, Inc. (Sterling), customer information services and all corporate and other operations. This segment includes our portion of the results from our international equity investments. Also included in the Other segment are impacts of corporate-wide decisions for which the individual operating segments are not being evaluated. In the following tables, we show how our segment results are reconciled to our consolidated results reported in accordan

NOTE 5. PROPERTY, PLANT AND EQU

NOTE 5. PROPERTY, PLANT AND EQUIPMENT
	12 Months Ended Dec. 31, 2009 USD / shares
Notes to Financial Statements [Abstract]
PROPERTY, PLANT AND EQUIPMENT	NOTE 5. PROPERTY, PLANT AND EQUIPMENT Property, plant and equipment is summarized as follows at December 31: Lives (years) 2009 2008 Land - $ 1,724 $ 1,730 Buildings 35-45 24,271 23,372 Central office equipment 3-10 78,314 75,054 Cable, wiring and conduit 10-50 74,325 72,109 Other equipment 5-15 39,918 34,434 Software 3-5 8,841 8,348 Under construction - 3,159 3,532 230,552 218,579 Accumulated depreciation and amortization Accumulated depreciation and amortization 130,459 119,491 Property, plant and equipment net $ 100,093 $ 99,088 Our depreciation expense was $15,959 in 2009, $15,313 in 2008 and $15,625 in 2007. Certain facilities and equipment used in operations are leased under operating or capital leases. Rental expenses under operating leases were $2,889 for 2009, $2,733 for 2008 and $2,566 for 2007. At December31,2009, the future minimum rental payments under non-cancelable operating leases for the years 2010 through 2014 were $2,429, $2,276, $2,057, $1,859 and $1,707, with $10,230 due thereafter. Certain real estate operating leases contain renewal options that may be exercised. Capital leases are not significant. American Tower Corp. Agreement In August 2000, we reached an agreement with American Tower Corp. (American Tower) under which we granted American Tower the exclusive rights to lease space on a number of our communications towers. In exchange, we received a combination of cash and equity instruments as complete prepayment of rent with the closing of each leasing agreement. The value of the prepayments was recorded as deferred revenue and recognized in income as revenue over the life of the leases. The balance of deferred revenue was $509 in 2009, $539 in 2008 and $569 in 2007.

NOTE 6. GOODWILL AND OTHER INTA

NOTE 6. GOODWILL AND OTHER INTANGIBLE ASSETS
	12 Months Ended Dec. 31, 2009 USD / shares
Notes to Financial Statements [Abstract]
GOODWILL AND OTHER INTANGIBLE ASSETS	NOTE 6. GOODWILL AND OTHER INTANGIBLE ASSETS Changes in the carrying amounts of goodwill, by segment, for the years ended December 31, 2009 and 2008, are as follows: Wireless Wireline Advertising Solutions Other Total Balance as of January 1, 2008 $ 32,713 $ 31,301 $ 5,788 $ 911 $ 70,713 Goodwill acquired 264 185 - - 449 Goodwill adjustments for prior-year acquisitions and tax adjustments 990 (95 ) (26 ) - 869 Other (116 ) (10 ) (68 ) (8 ) (202 ) Balance as of December 31, 2008 33,851 31,381 5,694 903 71,829 Goodwill acquired 1,276 344 36 - 1,656 Other (90 ) (117 ) 1 (20 ) (226 ) Balance as of December 31, 2009 $ 35,037 $ 31,608 $ 5,731 $ 883 $ 73,259 Goodwill and wireless FCC licenses are not amortized but tested annually as of October 1 for impairment as required by GAAP. The carrying amounts of goodwill, by segment (which is the same as reporting unit for Wireless, Wireline and Advertising Solutions), at December 31, 2009 were Wireless $35,037; Wireline $31,608; Advertising Solutions $5,731; and Other $883 and at December 31, 2008 were Wireless $33,851; Wireline $31,381; Advertising Solutions $5,694; and Other $903. Within the Other segment, goodwill associated with our Sterling operations was $477 for 2009 and 2008. Additionally, FCC licenses are tested for impairment on an aggregate basis, consistent with the management of the business on a national scope. These annual impairment tests resulted in no impairment of indefinite-lived goodwill or wireless FCC licenses in 2009 and 2008. Goodwill in the Other segment as of January 1, 2008, is net of a $1,791 impairment that was recognized in a prior period. We review other long-lived assets for impairment whenever events or circumstances indicate that the carrying amount may not be recoverable over the remaining life of the asset or asset group. Goodwill acquired relates primarily to the acquisition of Centennial and a provider of mobile application solutions (see Note 2). Changes to goodwill include adjustments totaling $90 related to wireless liabilities in connection with a business combination and disposition of a wireline entity for $117 in 2009. Our other intangible assets are summarized as follows: December 31, 2009 December 31, 2008 Other Intangible Assets Gross Carrying Amount Accumulated Amortization Gross Carrying Amount Accumulated Amortization Amortized intangible assets: Customer lists and relationships: ATT Mobility $ 5,804 $ 3,097 $ 10,429 $ 6,409 BellSouth 9,215 5,597 9,215 4,062 ATTC 3,134 2,377 3,100 2,038 Other 926 588 788 441 Subtotal 19,079 11,659 23,532 12,950 Other 1,176 767 1,724 1,130 Total $ 20,255 $ 12,426 $ 25,256 $ 14,080

NOTE 7. EQUITY METHOD INVESTMEN

NOTE 7. EQUITY METHOD INVESTMENTS
	12 Months Ended Dec. 31, 2009 USD / shares
Notes to Financial Statements [Abstract]
EQUITY METHOD INVESTMENTS	NOTE 7. EQUITY METHOD INVESTMENTS Investments in partnerships, joint ventures and less-than-majority-owned subsidiaries in which we have significant influence are accounted for under the equity method. Our investments in equity affiliates include primarily international investments. As of December 31, 2009, our investments in equity affiliates included a 9.8% interest in Tlefonos de Mxico, S.A. de C.V. (Telmex), Mexicos national telecommunications company, and an 8.8% interest in Amrica Mvil S.A. de C.V. (Amrica Mvil), primarily a wireless provider in Mexico with telecommunications investments in the United States and Latin America. In 2007, Telmexs Board of Directors and shareholders approved a strategic initiative to split off its Latin American businesses and its Mexican yellow pages business to a new holding company, Telmex Internacional, S.A.B. de C.V. (Telmex Internacional). Our investment in Telmex Internacional is 9.9%. We are a member of a consortium that holds all of the class AA shares of Telmex stock, representing voting control of the company. Another member of the consortium, Carso Global Telecom, S.A. de C.V. (CGT), has the right to appoint a majority of the directors of Telmex. We also are a member of a consortium that holds all of the class AA shares of Amrica Mvil stock, representing voting control of the company. Another member of the consortium has the right to appoint a majority of the directors of Amrica Mvil. On January 13, 2010, Amrica Mvil announced that its Board of Directors had authorized it to submit an offer for 100% of the equity of CGT, a holding company that owns 59.4% of Telmex and 60.7% of Telmex Internacional, in exchange for Amrica Mvil shares; and an offer for Telmex Internacional shares not owned by CGT, to be purchased for cash or to be exchanged for Amrica Mvil shares, at the election of the shareholders. The following table is a reconciliation of our investments in equity affiliates as presented on our consolidated balance sheets: 2009 2008 Beginning of year $ 2,332 $ 2,270 Additional investments 44 - Equity in net income of affiliates 734 819 Dividends received (317 ) (164 ) Currency translation adjustments 125 (574 ) Other adjustments 3 (19 ) End of year $ 2,921 $ 2,332 Undistributed earnings from equity affiliates were $3,408 and $2,989 at December31, 2009 and 2008. The currency translation adjustment for 2009 and 2008 reflects the effect of exchange rate fluctuations on our investments in Telmex, Telmex Internacional and Amrica Mvil. The fair value of our investment in Telmex, based on the equivalent value of Telmex L shares at December 31, 2009, was $1,492. The fair value of our investment in Amrica Mvil, based on the equivalent value of Amrica Mvil L shares at December 31, 2009, was $6,741. The fair value of our investment in Telmex Internacional, based on the equivalent value of Telmex Internacional L shares at December 31, 2009, was $1,597.

NOTE 8. DEBT

NOTE 8. DEBT
	12 Months Ended Dec. 31, 2009 USD / shares
Notes to Financial Statements [Abstract]
DEBT	NOTE 8. DEBT Long-term debt of ATT and its subsidiaries, including interest rates and maturities, is summarized as follows at December31: 2009 2008 Notes and debentures Interest Rates Maturities1 0.35% 2.99 % 2009 2010 $ 3,500 $ 1,500 3.00% 4.99 % 2009 2014 5,853 10,577 5.00% 6.99 % 2009 2095 41,331 37,613 7.00% 9.10 % 2009 2097 19,069 18,007 Other 136 138 Fair value of interest rate swaps recorded in debt 310 527 70,199 68,362 Unamortized premium, net of discount 1,612 1,846 Total notes and debentures 71,811 70,208 Capitalized leases 237 167 Total long-term debt, including current maturities 72,048 70,375 Current maturities of long-term debt (7,328 ) (9,503 ) Total long-term debt $ 64,720 $ 60,872 1 Maturities assume putable debt is redeemed by the holders at the next opportunity. Current maturities of long-term debt include debt that may be put back to us by the holders in 2010. We have $1,000 of annual put reset securities issued by BellSouth that can be put each April until maturity in 2021. If the holders do not require us to repurchase the securities, the interest rate will be reset based on current market conditions. Likewise, we have an accreting zero-coupon note that may be redeemed each May, excluding May 2011, until maturity in 2022. If the zero-coupon note (issued for principal of $500 in 2007) is held to maturity, the redemption amount will be $1,030. Debt maturing within one year consists of the following at December 31: 2009 2008 Commercial paper $ - $ 4,575 Current maturities of long-term debt 7,328 9,503 Bank borrowings1 33 41 Total $ 7,361 $ 14,119 1 Outstanding balance of short-term credit facility of a foreign subsidiary. During 2009, we received net proceeds of $8,161 from the issuance of $8,228 in long-term debt. Debt proceeds were used for general corporate purposes, including the repayment of maturing debt. Long-term debt issuances consisted of: $1,000 of 4.85% global notes due in 2014. $2,250 of 5.80% global notes due in 2019. $2,250 of 6.55% global notes due in 2039. 750 of 5.875% global notes due in 2017 (equivalent to $1,107 when issued). 1,100 of 7.0% global notes due in 2040 (equivalent to $1,621 when issued). During 2009, debt repayments totaled $13,236 and consisted of: $8,633 in repayments of long-term debt (includes repayment of $1,957 for Centennial debt). $4,583 in repayments of commercial paper and short-term bank borrowings. $20 in repayments of other debt. As of December 31, 2009 and 2008, we were in compliance with all covenants and conditions of instruments governing our debt. Substantially all of our outstanding long-term debt is unsecured. Excluding capitalized leases, the aggregate principal amounts of long-term debt and the corresponding weighted-average interest rate scheduled for repayme

NOTE 9. FAIR VALUE MEASUREMENTS

NOTE 9. FAIR VALUE MEASUREMENTS AND DISCLOSURE
	12 Months Ended Dec. 31, 2009 USD / shares
Notes to Financial Statements [Abstract]
FAIR VALUE MEASUREMENTS AND DISCLOSURE	NOTE 9. FAIR VALUE MEASUREMENTS AND DISCLOSURE GAAP standards require disclosures for financial assets and liabilities that are remeasured at fair value at least annually. GAAP standards establish a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value. The Fair Value Measurement and Disclosure framework provides a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). The three levels of the fair value hierarchy under Fair Value Measurement and Disclosure are described below: Level 1 Inputs to the valuation methodology are unadjusted quoted prices for identical assets or liabilities in active markets that ATT has the ability to access. Level 2 Inputs to the valuation methodology include: Quoted prices for similar assets and liabilities in active markets; Quoted prices for identical or similar assets or liabilities in inactive markets; Inputs other than quoted market prices that are observable for the asset or liability; Inputs that are derived principally from or corroborated by observable market data by correlation or other means. If the asset or liability has a specified (contractual) term, the Level 2 input must be observable for substantially the full term of the asset or liability. Level 3 Inputs to the valuation methodology are unobservable and significant to the fair value measurement. Fair value is often based on internally developed models in which there are few, if any, external observations. The assets or liabilitys fair value measurement level with the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. Valuation techniques used need to maximize the use of observable inputs and minimize the use of unobservable inputs. The valuation methodologies described above may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. ATT believes its valuation methods are appropriate and consistent with other market participants. The use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different fair value measurement at the reporting date. There have been no changes in the methodologies used at December 31, 2009 and 2008. See Note 11 for disclosures relating to pension and other postemployment benefits. Long-Term Debt and Other Financial Instruments The carrying amounts and estimated fair values of our long-term debt, including current maturities and other financial instruments, are summarized as follows at December 31: 2009 2008 Carrying Fair Carrying Fair Amount Value Amount Value Notes and debentures $ 71,811 $ 75,212 $ 70,208 $ 70,955 Commercial paper - - 4,575 4,575 Bank borrowings 33

NOTE 10. INCOME TAXES

NOTE 10. INCOME TAXES
	12 Months Ended Dec. 31, 2009 USD / shares
Notes to Financial Statements [Abstract]
INCOME TAXES	NOTE 10. INCOME TAXES Significant components of our deferred tax liabilities (assets) are as follows at December 31: 2009 2008 Depreciation and amortization $ 18,796 $ 18,269 Intangibles (nonamortizable) 1,990 1,990 Employee benefits (14,220 ) (14,825 ) Net operating loss and other carryforwards (1,846 ) (2,220 ) Investment in wireless partnership 18,646 16,028 Other net (2,019 ) (2,250 ) Subtotal 21,347 16,992 Deferred tax assets valuation allowance 1,182 1,190 Net deferred tax liabilities $ 22,529 $ 18,182 Net long-term deferred tax liabilities $ 23,803 $ 19,196 Less: Net current deferred tax assets (1,274 ) (1,014 ) Net deferred tax liabilities $ 22,529 $ 18,182 At December 31, 2009, we had combined net operating and capital loss carryforwards (tax effected) for federal income tax purposes of $362 and for state and foreign income tax purposes of $1,125, expiring through 2028. Additionally, we had federal credit carryforwards of $66 and state credit carryforwards of $293, expiring primarily through 2026. We recognize a valuation allowance if, based on the weight of available evidence, it is more likely than not that some portion, or all, of a deferred tax asset will not be realized. Our valuation allowances at December 31, 2008 and 2009, relate primarily to state net operating loss carryforwards. As required by GAAP, we recognize the financial statement effects of a tax return position when it is more likely than not, based on the technical merits, that the position will ultimately be sustained. For tax positions that meet this recognition threshold, we apply our judgment, taking into account applicable tax laws, our experience in managing tax audits and relevant GAAP, to determine the amount of tax benefits to recognize in our financial statements. For each position, the difference between the benefit realized on our tax return and the benefit reflected in our financial statements is recorded on our balance sheet as an unrecognized tax benefit (UTB). We update our unrecognized tax benefits at each financial statement date to reflect the impacts of audit settlements and other resolution of audit issues, expiration of statutes of limitation, developments in tax law and ongoing discussions with taxing authorities. A reconciliation of the change in our UTB balance from January 1, 2009 to December 31, 2009, and January 1, 2008 to December 31, 2008, is as follows: Federal, State and Foreign Tax 2009 2008 Balance at beginning of year $ 6,190 $ 5,901 Increases for tax positions related to the current year 982 811 Increases for tax positions related to prior years 877 715 Decreases for tax positions related to prior years (1,984 ) (1,237 ) Settlements (81 ) - Balance at end of year 5,984 6,190 Accrued interest and penalties 1,539 1,802 Gross unrecognized income tax benefits 7,523 7,992 Less: Deferred federal and s

NOTE 11. PENSION AND POSTRETIRE

NOTE 11. PENSION AND POSTRETIREMENT BENEFITS
	12 Months Ended Dec. 31, 2009 USD / shares
Notes to Financial Statements [Abstract]
PENSION AND POSTRETIREMENT BENEFITS	NOTE 11. PENSION AND POSTRETIREMENT BENEFITS Pension Benefits and Postretirement Benefits Substantially all of our U.S. employees are covered by one of our noncontributory pension and death benefit plans. Many of our management employees participate in pension plans that have a traditional pension formula (i.e., a stated percentage of employees adjusted career income) and a frozen cash balance or defined lump sum formula. In 2005, the management pension plan for those employees was amended to freeze benefit accruals previously earned under a cash balance formula. Each employees existing cash balance continues to earn interest at a variable annual rate. After this change, those management employees, at retirement, may elect to receive the portion of their pension benefit derived under the cash balance or defined lump sum as a lump sum or an annuity. The remaining pension benefit, if any, will be paid as an annuity if its value exceeds a stated monthly amount. Management employees of former ATTC, BellSouth, ATT Mobility and new hires after 2006 participate in cash balance pension plans. Nonmanagement employees pension benefits are generally calculated using one of two formulas: benefits are based on a flat dollar amount per year according to job classification or are calculated under a cash balance plan that is based on an initial cash balance amount and a negotiated annual pension band and interest credits. Most nonmanagement employees can elect to receive their pension benefits in either a lump sum payment or an annuity. We also provide a variety of medical, dental and life insurance benefits to certain retired employees under various plans and accrue actuarially determined postretirement benefit costs as active employees earn these benefits. On December 31, 2009, the ATT Pension Plan and the Cingular Wireless Pension Planwere merged into the ATT Puerto Rico Pension Benefit Plan. At November 1, 2008, BellSouth pension plans and U.S. Domestic ATTC bargained employees were merged in the ATT Pension Benefit Plan. At December 31, 2007, defined benefit pension plans formerly sponsored by Ameritech Publishing Ventures and ATT Mobility were merged in the ATT Pension Benefit Plan. During 2009, union contracts covering 120,000 collectively bargained wireline employees expired. As of January 31, 2010, 86,000 employees covered by these expired collectively bargained wireline contracts have ratified new labor contracts. In the absence of an effective contract, the union is entitled to call a work stoppage. For approximately 60,000 employees covered by these ratified agreements, the agreements provide for a three-year term and, for the vast majority of those covered employees, a 3 percent wage increase in years one and two, a wage increase in year three of 2.75 percent, and pension band increases of 2 percent for each year of the agreement. For both wage and pension band increases, there is a potential cost-of-living increase based on the Consumer Price Index for the third year. These agreements also provide for continued health care coverage with reasonable cost sharing. For the remaining approximately 26,000 employees, the agreemen

NOTE 12. SHARE-BASED PAYMENT

NOTE 12. SHARE-BASED PAYMENT
	12 Months Ended Dec. 31, 2009 USD / shares
Notes to Financial Statements [Abstract]
SHARE-BASED PAYMENT	NOTE 12. SHARE-BASED PAYMENT We account for our share-based payment arrangements using GAAP standards for share-based awards. Our accounting under these standards may affect our ability to fully realize the value shown on our consolidated balance sheets of deferred tax assets associated with compensation expense. Full realization of these deferred tax assets requires stock options to be exercised at a price equaling or exceeding the sum of the exercise price plus the fair value of the options at the grant date. The provisions of GAAP standards for share-based awards do not allow a valuation allowance to be recorded unless our future taxable income is expected to be insufficient to recover the asset. Accordingly, there can be no assurance that the current stock price of our common shares will rise to levels sufficient to realize the entire tax benefit currently reflected in our consolidated balance sheets. However, to the extent that additional tax benefits are generated in excess of the deferred taxes associated with compensation expense previously recognized, the potential future impact on income would be reduced. At December 31, 2009, we had various share-based payment arrangements, which we describe in the following discussion. The compensation cost recognized for those plans was $317 for 2009, compared to $166 for 2008 and $720 for 2007, and is included in Selling, general and administrative in our consolidated statements of income. The total income tax benefit recognized in the consolidated statements of income for share-based payment arrangements was $121 for 2009, compared to $63 for 2008 and $275 for 2007. Under our various plans, senior and other management and nonmanagement employees and nonemployee directors have received stock options, performance stock units, and other nonvested stock units. Stock options issued through December 31, 2009, carry exercise prices equal to the market price of our stock at the date of grant. Beginning in 1994 and ending in 1999, certain employees of ATT Teleholdings, Inc. (formerly known as Ameritech) were awarded grants of nonqualified stock options with dividend equivalents. Prior to 2006, depending on the grant, stock options vesting could occur up to five years from the date of grant, with most options vesting ratably over three years. Stock options granted as part of a deferred compensation plan do not have a vesting period; since 2006, these are the only options issued by ATT. Performance stock units, which are nonvested stock units, are granted to key employees based upon our stock price at the date of grant and are awarded in the form of ATT common stock and cash at the end of a two- to three-year period, subject to the achievement of certain performance goals. Other nonvested stock units are valued at the market price of our common stock at the date of grant and vest typically over a two- to five-year period. As of December 31, 2009, we were authorized to issue up to 110 million shares of common stock (in addition to shares that may be issued upon exercise of outstanding options or upon vesting of performance stock units or other nonvested stock units) to officers, employees, and

NOTE 13. STOCKHOLDERS' EQUITY

NOTE 13. STOCKHOLDERS' EQUITY
	1/1/2009 - 12/31/2009 USD / shares
Notes to Financial Statements [Abstract]
STOCKHOLDERS' EQUITY	NOTE 13. STOCKHOLDERS EQUITY From time to time, we repurchase shares of common stock for distribution through our employee benefit plans or in connection with certain acquisitions. In December 2007, the Board of Directors authorized the repurchase of up to 400 million shares of our common stock. This authorization replaced previous authorizations and expired on December 31, 2009. As of December 31, 2009, we had repurchased approximately 164 million shares under this program. During the Annual Meeting of Shareholders in April 2009, shareholders approved the increase of authorized common shares of ATT stock from 7 billion to 14 billion, with no change to the currently authorized 10 million preferred shares of ATT stock. As of December 31, 2009 and 2008, no preferred shares were outstanding. In December 2009, the Company declared its quarterly dividend, which reflected an increase in the amount per share of common stock from $0.41 to $0.42.

NOTE 14. ADDITIONAL FINANCIAL I

NOTE 14. ADDITIONAL FINANCIAL INFORMATION
	12 Months Ended Dec. 31, 2009 USD / shares
Schedule to Financial Statements [Abstract]
ADDITIONAL FINANCIAL INFORMATION	NOTE 14. ADDITIONAL FINANCIAL INFORMATION December 31, Consolidated Balance Sheets 2009 2008 Accounts payable and accrued liabilities: Accounts payable $ 7,514 $ 6,921 Accrued rents and other 3,335 4,437 Accrued payroll and commissions 2,430 2,401 Deferred directory revenue 1,491 1,984 Accrued interest 1,717 1,471 Compensated future absences 563 609 Current portion of employee benefit obligation 2,021 729 Other 1,928 1,480 Total accounts payable and accrued liabilities $ 20,999 $ 20,032 Deferred compensation (included in Other noncurrent liabilities) $ 1,633 $ 1,648 Consolidated Statements of Income 2009 2008 2007 Advertising expense $ 2,797 $ 3,073 $ 3,430 Interest expense incurred $ 4,119 $ 4,049 $ 3,678 Capitalized interest (740 ) (659 ) (171 ) Total interest expense $ 3,379 $ 3,390 $ 3,507 Consolidated Statements of Cash Flows 2009 2008 2007 Cash paid during the year for: Interest $ 3,873 $ 3,727 $ 3,445 Income taxes, net of refunds 4,471 5,307 4,013 Consolidated Statements of Changes in Stockholders Equity 2009 2008 2007 Accumulated other comprehensive income (loss) is composed of the following components, net of taxes, at December 31: Foreign currency translation adjustment $ (761 ) $ (912 ) $ (469 ) Unrealized gains on securities 324 100 375 Unrealized gains (losses) on cash flow hedges 142 (483 ) (226 ) Defined benefit postretirement plans (14,112 ) (15,761 ) (59 ) Other (1 ) (1 ) (1 ) Accumulated other comprehensive (loss) $ (14,408 ) $ (17,057 ) $ (380 ) No customer accounted for more than 10% of consolidated revenues in 2009, 2008 or 2007. A majority of our employees are represented by labor unions as of year-end 2009.

NOTE 15. CONTINGENT LIABILITIES

NOTE 15. CONTINGENT LIABILITIES
	12 Months Ended Dec. 31, 2009 USD / shares
Schedule to Financial Statements [Abstract]
CONTINGENT LIABILITIES	NOTE 15. CONTINGENT LIABILITIES In addition to issues specifically discussed elsewhere, we are party to numerous lawsuits, regulatory proceedings and other matters arising in the ordinary course of business. In accordance with GAAP standards for contingencies, in evaluating these matters on an ongoing basis, we take into account amounts already accrued on the balance sheet. In our opinion, although the outcomes of these proceedings are uncertain, they should not have a material adverse effect on our financial position, results of operations or cash flows. We have contractual obligations to purchase certain goods or services from various other parties. Our purchase obligations are expected to be approximately $2,890 in 2010, $4,095 in total for 2011 and 2012, $2,549 in total for 2013 and 2014 and $694 in total for years thereafter. See Note 9 for a discussion of collateral and credit-risk contingencies.

SCHEDULE II VALUATION AND QUALI

SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS
	12 Months Ended Dec. 31, 2009 USD / shares
Schedule to Financial Statements [Abstract]
VALUATION AND QUALIFYING ACCOUNTS	Schedule II - Sheet 1 ATT INC. SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS Allowance for Doubtful Accounts Dollars in Millions COL. A COL. B COL. C COL. D COL. E Additions (1 ) (2 ) (3 ) Balance at Beginning of Period Charged to Costs and Expenses (a) Charged to Other Accounts (b) Acquisitions Deductions (c) Balance at End of Period Year 2009 $ 1,270 1,763 30 2 1,860 $ 1,205 Year 2008 $ 1,364 1,796 929 - 2,819 $ 1,270 Year 2007 $ 1,276 1,617 366 - 1,895 $ 1,364 ___________________ (a) Excludes direct charges and credits to expense on the consolidated statements of income and reinvested earnings related to interexchange carrier receivables. (b) Includes amounts previously written off which were credited directly to this account when recovered and amounts related to long-distance carrier receivables which were billed by ATT. (c) Amounts written off as uncollectible.

Document Information

Document Information
	12 Months Ended Dec. 31, 2009 USD / shares
Document Information [Text Block]
Document Type	10-K
Amendment Flag	false
Document Period End Date	2009-12-31

Entity Information

Entity Information (USD $)
	12 Months Ended Dec. 31, 2009	Jan. 31, 2010	Jun. 30, 2009
Entity [Text Block]
Entity Registrant Name	AT&T Inc.
Entity Central Index Key	0000732717
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Public Float			$146,600,000,000
Entity Common Stock, Shares Outstanding		5,902,074,438