AT&T (T) 10-Q 5 Aug 19 2019 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares shares in Millions	6 Months Ended
	Jun. 30, 2019	Jul. 31, 2019
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2019
Document Quarterly Report	true
Document Transition Report	false
Document Period End Date	Jun. 30, 2019
Current Fiscal Year End Date	--12-31
Entity Central Index Key	0000732717
Entity File Number	1-8610
Entity Registrant Name	AT&T INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	43-1301883
Entity Address, Address Line One	208 S. Akard St.
Entity Address, City or Town	Dallas
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	75202
City Area Code	210
Local Phone Number	821-4105
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock Shares Outstanding		7,307
AT&T Inc. Floating Rate due August 3, 2020 [Member]
Entity Listings [Line Items]
Title of 12(b) Security	AT&T Inc. Floating Rate Global Notes due August 3, 2020
Trading Symbol	T 20C
Security Exchange Name	NYSE
AT&T Inc. 1.875% Global Notes due December 4, 2020 [Member]
Entity Listings [Line Items]
Title of 12(b) Security	AT&T Inc. 1.875% Global Notes due December 4, 2020
Trading Symbol	T 20
Security Exchange Name	NYSE
AT&T Inc. 2.65% Global Notes due December 17, 2021 [Member]
Entity Listings [Line Items]
Title of 12(b) Security	AT&T Inc. 2.65% Global Notes due December 17, 2021
Trading Symbol	T 21B
Security Exchange Name	NYSE
AT&T Inc. 1.45% Global Notes due June 1, 2022 [Member]
Entity Listings [Line Items]
Title of 12(b) Security	AT&T Inc. 1.45% Global Notes due June 1, 2022
Trading Symbol	T 22B
Security Exchange Name	NYSE
AT&T Inc. 2.50% Global Notes due March 15, 2023 [Member]
Entity Listings [Line Items]
Title of 12(b) Security	AT&T Inc. 2.50% Global Notes due March 15, 2023
Trading Symbol	T 23
Security Exchange Name	NYSE
AT&T Inc. 2.75% Global Notes due May 19, 2023 [Member]
Entity Listings [Line Items]
Title of 12(b) Security	AT&T Inc. 2.75% Global Notes due May 19, 2023
Trading Symbol	T 23C
Security Exchange Name	NYSE
AT&T Inc. Floating Rate Due September 5, 2023 [Member]
Entity Listings [Line Items]
Title of 12(b) Security	AT&T Inc. Floating Rate Global Notes due September 5, 2023
Trading Symbol	T 23D
Security Exchange Name	NYSE
AT&T Inc. 1.05% Global Notes due September 5, 2023 [Member]
Entity Listings [Line Items]
Title of 12(b) Security	AT&T Inc. 1.05% Global Notes due September 5, 2023
Trading Symbol	T 23E
Security Exchange Name	NYSE
AT&T Inc. 1.30% Global Notes due September 5, 2023 [Member]
Entity Listings [Line Items]
Title of 12(b) Security	AT&T Inc. 1.30% Global Notes due September 5, 2023
Trading Symbol	T 23A
Security Exchange Name	NYSE
AT&T Inc. 1.95% Global Notes due September 15, 2023 [Member]
Entity Listings [Line Items]
Title of 12(b) Security	AT&T Inc. 1.95% Global Notes due September 15, 2023
Trading Symbol	T 23F
Security Exchange Name	NYSE
AT&T Inc. 2.40% Global Notes due March 15, 2024 [Member]
Entity Listings [Line Items]
Title of 12(b) Security	AT&T Inc. 2.40% Global Notes due March 15, 2024
Trading Symbol	T 24A
Security Exchange Name	NYSE
AT&T Inc. 3.50% Global Notes due December 17, 2025 [Member]
Entity Listings [Line Items]
Title of 12(b) Security	AT&T Inc. 3.50% Global Notes due December 17, 2025
Trading Symbol	T 25
Security Exchange Name	NYSE
AT&T Inc. 1.80% Global Notes due September 5, 2026 [Member]
Entity Listings [Line Items]
Title of 12(b) Security	AT&T Inc. 1.80% Global Notes due September 5, 2026
Trading Symbol	T 26D
Security Exchange Name	NYSE
AT&T Inc. 2.90% Global Notes due December 4, 2026 [Member]
Entity Listings [Line Items]
Title of 12(b) Security	AT&T Inc. 2.90% Global Notes due December 4, 2026
Trading Symbol	T 26A
Security Exchange Name	NYSE
AT&T Inc. 2.35% Global Notes due September 5, 2029 [Member]
Entity Listings [Line Items]
Title of 12(b) Security	AT&T Inc. 2.35% Global Notes due September 5, 2029
Trading Symbol	T 29D
Security Exchange Name	NYSE
AT&T Inc. 4.375% Global Notes due September 14, 2029 [Member]
Entity Listings [Line Items]
Title of 12(b) Security	AT&T Inc. 4.375% Global Notes due September 14, 2029
Trading Symbol	T 29B
Security Exchange Name	NYSE
AT&T Inc. 2.60% Global Notes due December 17, 2029 [Member]
Entity Listings [Line Items]
Title of 12(b) Security	AT&T Inc. 2.60% Global Notes due December 17, 2029
Trading Symbol	T 29A
Security Exchange Name	NYSE
AT&T Inc. 3.55% Global Notes due December 17, 2032 [Member]
Entity Listings [Line Items]
Title of 12(b) Security	AT&T Inc. 3.55% Global Notes due December 17, 2032
Trading Symbol	T 32
Security Exchange Name	NYSE
AT&T Inc. 5.20% Global Notes due November 18, 2033 [Member]
Entity Listings [Line Items]
Title of 12(b) Security	AT&T Inc. 5.20% Global Notes due November 18, 2033
Trading Symbol	T 33
Security Exchange Name	NYSE
AT&T Inc. 3.375% Global Notes due March 15, 2034 [Member]
Entity Listings [Line Items]
Title of 12(b) Security	AT&T Inc. 3.375% Global Notes due March 15, 2034
Trading Symbol	T 34
Security Exchange Name	NYSE
AT&T Inc. 2.45% Global Notes due March 15, 2035 [Member]
Entity Listings [Line Items]
Title of 12(b) Security	AT&T Inc. 2.45% Global Notes due March 15, 2035
Trading Symbol	T 35
Security Exchange Name	NYSE
AT&T Inc. 3.15% Global Notes due September 4, 2036 [Member]
Entity Listings [Line Items]
Title of 12(b) Security	AT&T Inc. 3.15% Global Notes due September 4, 2036
Trading Symbol	T 36A
Security Exchange Name	NYSE
AT&T Inc. 7.00% Global Notes Due April 30, 2040 [Member]
Entity Listings [Line Items]
Title of 12(b) Security	AT&T Inc. 7.00% Global Notes due April 30, 2040
Trading Symbol	T 40
Security Exchange Name	NYSE
AT&T Inc. 4.25% Global Notes due June 1, 2043 [Member]
Entity Listings [Line Items]
Title of 12(b) Security	AT&T Inc. 4.25% Global Notes due June 1, 2043
Trading Symbol	T 43
Security Exchange Name	NYSE
AT&T Inc. 4.875% Global Notes due June 1, 2044 [Member]
Entity Listings [Line Items]
Title of 12(b) Security	AT&T Inc. 4.875% Global Notes due June 1, 2044
Trading Symbol	T 44
Security Exchange Name	NYSE
AT&T Inc. 5.35% Global Notes due November 1, 2066 [Member]
Entity Listings [Line Items]
Title of 12(b) Security	AT&T Inc. 5.35% Global Notes due November 1, 2066
Trading Symbol	TBB
Security Exchange Name	NYSE
AT&T Inc. 5.625% Global Notes due August 1, 2067 [Member]
Entity Listings [Line Items]
Title of 12(b) Security	AT&T Inc. 5.625% Global Notes due August 1, 2067
Trading Symbol	TBC
Security Exchange Name	NYSE
Common Stock [Member]
Entity Listings [Line Items]
Title of 12(b) Security	Common Shares (Par Value $1.00 Per Share)
Trading Symbol	T
Security Exchange Name	NYSE

Consolidated Statements Of Inco

Consolidated Statements Of Income - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Operating Revenues
Service	$ 41,023	$ 34,906	$ 81,707	$ 68,552
Equipment	3,934	4,080	8,077	8,472
Total operating revenues	44,957	38,986	89,784	77,024
Operating Expenses
Equipment	4,061	4,377	8,563	9,225
Broadcast, programming and operations	7,730	5,449	15,382	10,615
Other cost of revenues (exclusive of depreciation and amortization shown separately below)	8,721	7,632	17,306	15,564
Selling, general and administrative	9,844	8,684	19,493	16,581
Depreciation and amortization	7,101	6,378	14,307	12,372
Total operating expenses	37,457	32,520	75,051	64,357
Operating Income	7,500	6,466	14,733	12,667
Other Income (Expense)
Interest expense	(2,149)	(2,023)	(4,290)	(3,794)
Equity in net income (loss) of affiliates	40	(16)	33	(7)
Other income (expense) - net	(318)	2,353	(32)	4,055
Total other income (expense)	(2,427)	314	(4,289)	254
Income Before Income Taxes	5,073	6,780	10,444	12,921
Income tax expense	1,099	1,532	2,122	2,914
Net Income	3,974	5,248	8,322	10,007
Less: Net Income Attributable to Noncontrolling Interest	(261)	(116)	(513)	(213)
Net Income Attributable to AT&T	$ 3,713	$ 5,132	$ 7,809	$ 9,794
Basic Earnings Per Share Attributable to AT&T	$ 0.51	$ 0.81	$ 1.06	$ 1.56
Diluted Earnings Per Share Attributable to AT&T	$ 0.51	$ 0.81	$ 1.06	$ 1.56
Weighted Average Number of Common Shares Outstanding - Basic (in millions)	7,323	6,351	7,318	6,257
Weighted Average Number of Common Shares Outstanding - with Dilution (in millions)	7,353	6,374	7,347	6,277

Consolidated Statements Of Comp

Consolidated Statements Of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Consolidated Statements of Comprehensive Income [Abstract]
Net income	$ 3,974	$ 5,248	$ 8,322	$ 10,007
Foreign currency:
Translation adjustment (includes $2, $(32), $2 and $(30) attributable to noncontrolling interest), net of taxes of $(1), $(318), $48 and $(143)	(127)	(918)	161	(810)
Securities:
Net unrealized gains (losses), net of taxes of $10, $0 $15 and $(4)	26	0	42	(12)
Derivative instruments:
Net unrealized gains (losses), net of taxes of $(165), $(112), $(131) and $68	(617)	(421)	(490)	253
Reclassification adjustment included in net income, net of taxes of $3, $3, $5 and $6	6	11	17	23
Defined benefit postretirement plans:
Net prior service (cost) credit arising during period, net of taxes of $0, $(12), $0 and $173	0	(37)	0	530
Amortization of net prior service credit included in net income, net of taxes of $(107), $(109), $(220) and $(214)	(342)	(334)	(688)	(657)
Other comprehensive income (loss)	(1,054)	(1,699)	(958)	(673)
Total comprehensive income	2,920	3,549	7,364	9,334
Less: Total comprehensive income attributable to noncontrolling interest	(263)	(84)	(515)	(183)
Total Comprehensive Income Attributable to AT&T	$ 2,657	$ 3,465	$ 6,849	$ 9,151

Consolidated Statements of Co_2

Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Consolidated Statements of Comprehensive Income [Abstract]
Foreign currency translation adjustments, attributable to noncontrolling interest, net of taxes	$ 2,000,000	$ (32,000,000)	$ 2,000,000	$ (30,000,000)
Foreign currency translation adjustments, tax effect	(1,000,000)	(318,000,000)	48,000,000	(143,000,000)
Unrealized gains (losses) on securities - tax effect	10,000,000	0	15,000,000	(4,000,000)
Unrealized gains (losses) on derivatives - tax effect	(165,000,000)	(112,000,000)	(131,000,000)	68,000,000
Reclassification adjustment included in net income on derivatives - tax effect	3,000,000	3,000,000	5,000,000	6,000,000
Net prior service credit (cost) arising during period - tax effect	0	(12,000,000)	0	173,000,000
Amortization of net prior service credit included in net income, tax effect	$ (107,000,000)	$ (109,000,000)	$ (220,000,000)	$ (214,000,000)

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Current Assets
Cash and cash equivalents	$ 8,423	$ 5,204
Accounts receivable - net of allowances for doubtful accounts of $1,086 and $907	22,381	26,472
Prepaid expenses	1,441	2,047
Other current assets	14,973	17,704
Total current assets	47,218	51,427
Noncurrent Inventories and Theatrical Film and Television Production Costs	10,685	7,713
Property, plant and equipment	334,916	330,690
Less: accumulated depreciation and amortization	(202,842)	(199,217)
Property, Plant and Equipment - Net	132,074	131,473
Goodwill	146,662	146,370
Licenses - Net	97,125	96,144
Trademarks And Tradenames - Net	24,088	24,345
Distribution Networks - Net	16,262	17,069
Other Intangible Assets - Net	23,284	26,269
Investments in and Advances to Equity Affiliates	4,133	6,245
Operating Lease Right-of-Use Assets	22,650	0
Other Assets	22,733	24,809
Total Assets	546,914	531,864
Current Liabilities
Debt maturing within one year	12,772	10,255
Accounts payable and accrued liabilities	42,082	43,184
Advanced billings and customer deposit	5,734	5,948
Accrued taxes	2,062	1,179
Dividends payable	3,726	3,854
Total current liabilities	66,376	64,420
Long-Term Debt	157,790	166,250
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes	58,713	57,859
Postemployment benefit obligation	21,210	19,218
Operating lease liabilities	20,568	0
Other noncurrent liabilities	28,176	30,233
Total deferred credits and other noncurrent liabilities	128,667	107,310
Stockholders' Equity
Common stock ($1 par value, 14,000,000,000 authorized at June 30, 2019 and December 31, 2018: issued 7,620,748,598 at June 30, 2019 and December 31, 2018)	7,621	7,621
Additional paid-in capital	125,109	125,525
Retained earnings	59,389	58,753
Treasury stock (315,719,351 at June 30, 2019 and 339,120,073 at December 31, 2018, at cost)	(11,151)	(12,059)
Accumulated other comprehensive income	3,289	4,249
Noncontrolling interest	9,824	9,795
Total stockholders' equity	194,081	193,884
Total Liabilities and Stockholders' Equity	$ 546,914	$ 531,864

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Consolidated Balance Sheets (Unaudited)
Allowances for doubtful accounts	$ 1,086	$ 907
Common stock, par value	$ 1	$ 1
Common stock, authorized	14,000,000,000	14,000,000,000
Common stock, issued	7,620,748,598	7,620,748,598
Treasury stock, held	315,719,351	339,120,073

Consolidated Statements Of Cash

Consolidated Statements Of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Operating Activities
Net income	$ 8,322	$ 10,007
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	14,307	12,372
Amortization of television and film costs	5,199	168
Undistributed earnings from investments in equity affiliates	76	235
Provision for uncollectible accounts	1,216	808
Deferred income tax expense	1,080	2,285
Net (gain) loss from investments, net of impairments	(905)	(29)
Actuarial (gain) loss on pension and postretirement benefits	2,131	(2,726)
Changes in operating assets and liabilities:
Accounts receivable	3,540	233
Other current assets, inventories and theatrical film and television production costs	(5,422)	1,039
Accounts payable and other accrued liabilities	(3,056)	(3,890)
Equipment installment receivables and related sales	1,144	490
Deferred customer contract acquisition and fulfillment costs	(614)	(1,725)
Employee retirement benefits	(1,232)	(933)
Other - net	(450)	842
Total adjustments	17,014	9,169
Net Cash Provided by Operating Activities	25,336	19,176
Investing Activities
Purchase of property and equipment	(10,542)	(10,959)
Interest during construction	(112)	(267)
Acquisitions, net of cash acquired	(320)	(40,715)
Dispositions	3,593	59
(Purchases) sales and settlements of securities and investments, net	396	(218)
Advances to and investments in equity affiliates, net	(314)	(1,035)
Cash collections of deferred purchase price	0	500
Net Cash Used in Investing Activities	(7,299)	(52,635)
Financing Activities
Net change in short-term borrowings with original maturities of three months or less	119	2,227
Issuance of other short-term borrowings	3,067	4,839
Repayment of other short-term borrowings	(3,148)	0
Issuance of long-term debt	10,030	26,478
Repayment of long-term debt	(16,124)	(29,447)
Purchase of treasury stock	(240)	(564)
Issuance of treasury stock	455	12
Dividends paid	(7,436)	(6,144)
Other	(1,506)	(1,121)
Net Cash Used in Financing Activities	(14,783)	(3,720)
Net increase (decrease) in cash and cash equivalents and restricted cash	3,254	(37,179)
Cash and cash equivalents and restricted cash beginning of year	5,400	50,932
Cash and Cash Equivalents and Restricted Cash End of Period	$ 8,654	$ 13,753

Consolidated Statement Of Chang

Consolidated Statement Of Changes In Stockholders' Equity QTD - USD ($) shares in Millions, $ in Millions	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income Attributable to AT&T, net of tax [Member]	Noncontrolling Interest [Member]
Balance at beginning of year at Dec. 31, 2017	$ 142,007	$ 6,495	$ 89,563	$ 50,500	$ (12,714)	$ 7,017	$ 1,146
Balance at beginning of year (in shares) at Dec. 31, 2017		6,495			(356)
Issuance of stock		$ 1,126	35,473
Issuance of stock (in shares)		1,126
Repurchase and acquisition of common stock					$ (607)
Repurchase and acquisition of common stock (in shares)					(18)
Issuance of treasury stock			(4)		$ 449
Issuance of treasury stock, (in shares)					13
Share-based payments			928
Net income attributable to AT&T ($0.51 and $0.81 per diluted share)	9,794			9,794
Dividends to stockholders ($0.51 and $0.50 per share)				(6,739)
Other comprehensive income attributable to AT&T						(643)
Net income attributable to noncontrolling interest	213						213
Interest acquired by noncontrolling owners							8
Distributions							(223)
Acquisitions of noncontrolling interest							1
Balance at end of period at Jun. 30, 2018	184,130	$ 7,621	125,960	56,555	$ (12,872)	5,716	1,150
Translation adjustments attributable to noncontrolling interest, net of taxes	(30)						(30)
Balance at end of period (in shares) at Jun. 30, 2018		7,621			(361)
Balance at beginning of year at Mar. 31, 2018	147,076	$ 6,495	89,404	55,067	$ (12,432)	7,386	1,156
Balance at beginning of year (in shares) at Mar. 31, 2018		6,495			(348)
Issuance of stock		$ 1,126	35,473
Issuance of stock (in shares)		1,126
Repurchase and acquisition of common stock					$ (443)
Repurchase and acquisition of common stock (in shares)					(14)
Issuance of treasury stock			0		$ 3
Issuance of treasury stock, (in shares)					1
Share-based payments			1,083
Net income attributable to AT&T ($0.51 and $0.81 per diluted share)	5,132			5,132
Dividends to stockholders ($0.51 and $0.50 per share)				(3,647)
Other comprehensive income attributable to AT&T						(1,667)
Net income attributable to noncontrolling interest	116						116
Interest acquired by noncontrolling owners							8
Distributions							(99)
Acquisitions of noncontrolling interest							1
Balance at end of period at Jun. 30, 2018	184,130	$ 7,621	125,960	56,555	$ (12,872)	5,716	1,150
Translation adjustments attributable to noncontrolling interest, net of taxes	(32)						(32)
Balance at end of period (in shares) at Jun. 30, 2018		7,621			(361)
Balance at beginning of year at Dec. 31, 2018	193,884	$ 7,621	125,525	58,753	$ (12,059)	4,249	9,795
Balance at beginning of year (in shares) at Dec. 31, 2018		7,621			(339)
Issuance of stock		$ 0	0
Issuance of stock (in shares)		0
Repurchase and acquisition of common stock					$ (280)
Repurchase and acquisition of common stock (in shares)					(9)
Issuance of treasury stock			(127)		$ 1,188
Issuance of treasury stock, (in shares)					32
Share-based payments			(289)
Net income attributable to AT&T ($0.51 and $0.81 per diluted share)	7,809			7,809
Dividends to stockholders ($0.51 and $0.50 per share)				(7,489)
Other comprehensive income attributable to AT&T						(960)
Net income attributable to noncontrolling interest	513						513
Interest acquired by noncontrolling owners							10
Distributions							(525)
Acquisitions of noncontrolling interest							0
Balance at end of period at Jun. 30, 2019	194,081	$ 7,621	125,109	59,389	$ (11,151)	3,289	9,824
Translation adjustments attributable to noncontrolling interest, net of taxes	2						2
Balance at end of period (in shares) at Jun. 30, 2019		7,621			(316)
Balance at beginning of year at Mar. 31, 2019	194,951	$ 7,621	125,174	59,424	$ (11,452)	4,345	9,839
Balance at beginning of year (in shares) at Mar. 31, 2019		7,621			(324)
Issuance of stock		$ 0	0
Issuance of stock (in shares)		0
Repurchase and acquisition of common stock					$ (72)
Repurchase and acquisition of common stock (in shares)					(2)
Issuance of treasury stock			(50)		$ 373
Issuance of treasury stock, (in shares)					10
Share-based payments			(15)
Net income attributable to AT&T ($0.51 and $0.81 per diluted share)	3,713			3,713
Dividends to stockholders ($0.51 and $0.50 per share)				(3,748)
Other comprehensive income attributable to AT&T						(1,056)
Net income attributable to noncontrolling interest	261						261
Interest acquired by noncontrolling owners							1
Distributions							(279)
Acquisitions of noncontrolling interest							0
Balance at end of period at Jun. 30, 2019	194,081	$ 7,621	$ 125,109	$ 59,389	$ (11,151)	$ 3,289	9,824
Translation adjustments attributable to noncontrolling interest, net of taxes	$ 2						$ 2
Balance at end of period (in shares) at Jun. 30, 2019		7,621			(316)

Consolidated Statement Of Cha_2

Consolidated Statement Of Changes In Stockholders' Equity YTD - USD ($) shares in Millions, $ in Millions	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income Attributable to AT&T, net of tax [Member]	Noncontrolling Interest [Member]
Balance at beginning of year at Dec. 31, 2017	$ 142,007	$ 6,495	$ 89,563	$ 50,500	$ (12,714)	$ 7,017	$ 1,146
Balance at beginning of year (in shares) at Dec. 31, 2017		6,495			(356)
Issuance of stock		$ 1,126	35,473
Issuance of stock (in shares)		1,126
Repurchase and acquisition of common stock					$ (607)
Repurchase and acquisition of common stock (in shares)					(18)
Issuance of treasury stock			(4)		$ 449
Issuance of treasury stock, (in shares)					13
Share-based payments			928
Net income attributable to AT&T ($1.06 and $1.56 per diluted share)	9,794			9,794
Dividends to stockholders ($1.02 and $1.00 per share)				(6,739)
Other comprehensive income attributable to AT&T						(643)
Net income attributable to noncontrolling interest	213						213
Interest acquired by noncontrolling owners							8
Distributions							(223)
Acquisitions of noncontrolling interest							1
Balance at end of period at Jun. 30, 2018	184,130	$ 7,621	125,960	56,555	$ (12,872)	5,716	1,150
Translation adjustments attributable to noncontrolling interest, net of taxes	(30)						(30)
Balance at end of period (in shares) at Jun. 30, 2018		7,621			(361)
Balance at beginning of year at Mar. 31, 2018	147,076	$ 6,495	89,404	55,067	$ (12,432)	7,386	1,156
Balance at beginning of year (in shares) at Mar. 31, 2018		6,495			(348)
Issuance of stock		$ 1,126	35,473
Issuance of stock (in shares)		1,126
Repurchase and acquisition of common stock					$ (443)
Repurchase and acquisition of common stock (in shares)					(14)
Issuance of treasury stock			0		$ 3
Issuance of treasury stock, (in shares)					1
Share-based payments			1,083
Net income attributable to AT&T ($1.06 and $1.56 per diluted share)	5,132			5,132
Dividends to stockholders ($1.02 and $1.00 per share)				(3,647)
Other comprehensive income attributable to AT&T						(1,667)
Net income attributable to noncontrolling interest	116						116
Interest acquired by noncontrolling owners							8
Distributions							(99)
Acquisitions of noncontrolling interest							1
Balance at end of period at Jun. 30, 2018	184,130	$ 7,621	125,960	56,555	$ (12,872)	5,716	1,150
Translation adjustments attributable to noncontrolling interest, net of taxes	(32)						(32)
Balance at end of period (in shares) at Jun. 30, 2018		7,621			(361)
Balance at beginning of year at Dec. 31, 2018	193,884	$ 7,621	125,525	58,753	$ (12,059)	4,249	9,795
Balance at beginning of year (in shares) at Dec. 31, 2018		7,621			(339)
Issuance of stock		$ 0	0
Issuance of stock (in shares)		0
Repurchase and acquisition of common stock					$ (280)
Repurchase and acquisition of common stock (in shares)					(9)
Issuance of treasury stock			(127)		$ 1,188
Issuance of treasury stock, (in shares)					32
Share-based payments			(289)
Net income attributable to AT&T ($1.06 and $1.56 per diluted share)	7,809			7,809
Dividends to stockholders ($1.02 and $1.00 per share)				(7,489)
Other comprehensive income attributable to AT&T						(960)
Net income attributable to noncontrolling interest	513						513
Interest acquired by noncontrolling owners							10
Distributions							(525)
Acquisitions of noncontrolling interest							0
Balance at end of period at Jun. 30, 2019	194,081	$ 7,621	125,109	59,389	$ (11,151)	3,289	9,824
Translation adjustments attributable to noncontrolling interest, net of taxes	2						2
Balance at end of period (in shares) at Jun. 30, 2019		7,621			(316)
Balance at beginning of year at Mar. 31, 2019	194,951	$ 7,621	125,174	59,424	$ (11,452)	4,345	9,839
Balance at beginning of year (in shares) at Mar. 31, 2019		7,621			(324)
Issuance of stock		$ 0	0
Issuance of stock (in shares)		0
Repurchase and acquisition of common stock					$ (72)
Repurchase and acquisition of common stock (in shares)					(2)
Issuance of treasury stock			(50)		$ 373
Issuance of treasury stock, (in shares)					10
Share-based payments			(15)
Net income attributable to AT&T ($1.06 and $1.56 per diluted share)	3,713			3,713
Dividends to stockholders ($1.02 and $1.00 per share)				(3,748)
Other comprehensive income attributable to AT&T						(1,056)
Net income attributable to noncontrolling interest	261						261
Interest acquired by noncontrolling owners							1
Distributions							(279)
Acquisitions of noncontrolling interest							0
Balance at end of period at Jun. 30, 2019	194,081	$ 7,621	$ 125,109	$ 59,389	$ (11,151)	$ 3,289	9,824
Translation adjustments attributable to noncontrolling interest, net of taxes	$ 2						$ 2
Balance at end of period (in shares) at Jun. 30, 2019		7,621			(316)

Consolidated Statement Of Cha_3

Consolidated Statement Of Changes In Stockholders' Equity (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Consolidated Statements Of Changes In Stockholders' Equity (Unaudited)
Net income attributable to AT&T, per diluted share	$ 0.51	$ 0.81	$ 1.06	$ 1.56
Dividends to stockholders, per share	$ 0.51	$ 0.5	$ 1.02	$ 1

Preparation Of Interim Financia

Preparation Of Interim Financial Statements	6 Months Ended
	Jun. 30, 2019
Accounting Policies [Abstract]
Basis of Presentation and Significant Accounting Policies	NOTE 1. PREPARATION OF INTERIM FINANCIAL STATEMENTS Basis of Presentation Throughout this document, AT&T Inc. is referred to as “we,” “AT&T” or the “Company.” The consolidated financial statements include the accounts of the Company and subsidiaries and affiliates which we control, including the operating results of Warner Media, LLC (referred to as “Time Warner” or “WarnerMedia”), which was acquired on June 14, 2018 (see Note 8). Our operating results for 2018 include the results from Time Warner following the acquisition date. AT&T is a holding company whose subsidiaries and affiliates operate worldwide in the telecommunications, media and technology industries. You should read this document in conjunction with the consolidated financial statements and accompanying notes included in our Annual Report on Form 10-K for the year ended December 31, 2018. The results for the interim periods are not necessarily indicative of those for the full year. These consolidated financial statements include all adjustments that are necessary to present fairly the results for the presented interim periods, consisting of normal recurring accruals and other items. All significant intercompany transactions are eliminated in the consolidation process. Investments in subsidiaries and partnerships which we do not control but have significant influence are accounted for under the equity method. Earnings from certain investments accounted for using the equity method are included for periods ended within up to one quarter of our period end. We also record our proportionate share of our equity method investees’ other comprehensive income (OCI) items. 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. Certain prior period amounts have been conformed to the current period’s presentation. In the tables throughout this document, percentage increases and decreases that are not considered meaningful are denoted with a dash. Adopted Accounting Standards and Other Changes Leases As of January 1, 2019, we adopted, with modified retrospective The key change upon adoption of the standard was balance sheet recognition, given that the recognition of lease expense on our income statement is similar to our historical accounting. Using the modified retrospective transition method of adoption, we did not adjust the balance sheet for comparative periods but recorded a cumulative effect adjustment to retained earnings on January 1, 2019. We elected the package of practical expedients permitted under the transition guidance within the new standard, which, among other things, allowed us to carry forward our historical lease classification. We also elected the practical expedient related to land easements, allowing us to carry forward our accounting treatment for land easements on existing agreements that were not accounted for as leases. We excluded all the leases with original terms of one year or less. Additionally, we elected to not separate lease and non-lease components for certain classes of assets in arrangements where we are the lessee and for certain classes of assets where we are the lessor. Our accounting for finance leases did not change from our prior accounting for capital leases. The adoption of ASC 842 resulted in the recognition of an operating lease liability of $ 22,121 20,960. The cumulative effect of the adoption to retained earnings was an increase of $ 316 reflecting the reclassification of deferred gains related to sale/leaseback transactions. We do not believe the standard will materially impact our future income statements or have a notable impact on our liquidity. The standard will have no impact on our debt-covenant compliance under our current agreements. Deferral of Episodic Television and Film Costs In March 2019, the FASB issued ASU No. 2019-02, “ Entertainment—Films—Other Assets—Film Costs (Subtopic 926-20) and Entertainment—Broadcasters—Intangibles—Goodwill and Other (Subtopic 920-350): Improvements to Accounting for Costs of Films and License Agreements for Program Materials” (ASU 2019-02), which we early adopted as of January 1, 2019 , with prospective 2,274 Spectrum Licenses in Mexico During the first quarter of 2019, in conjunction with the renewal process of certain spectrum licenses in Mexico, we reassessed the estimated economic lives and renewal assumptions for these licenses. As a result, we have changed the life of these licenses from indefinite to finite-lived. On January 1, 2019, we began amortizing our spectrum licenses in Mexico over their average remaining economic life of 25 years. This change in accounting does not materially impact our income statement. Recently Issued Accounting Standards Credit Loss Standard In June 2016, the FASB issued ASU No. 2016-13, “Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments” (ASU 2016-13, as amended), which replaces the incurred loss impairment methodology under current GAAP. ASU 2016-13 affects trade receivables, loans and other financial assets that are not subject to fair value through net income, as defined by the standard. The amendments under ASU 2016-13 will be effective for years beginning after December 15, 2019, and interim periods within those years. We are currently evaluating ASU 2016-13 but do not anticipate it will have a material impact on our financial statements.

Earnings Per Share

Earnings Per Share	6 Months Ended
	Jun. 30, 2019
Earnings Per Share
Earnings Per Share [Text Block]	NOTE 2. EARNINGS PER SHARE A reconciliation of the numerators and denominators of basic and diluted earnings per share for the three months and six months ended June 30, 2019 and 2018, is shown in the table below: Three months ended Six months ended June 30, June 30, 2019 2018 2019 2018 Numerators Numerator for basic earnings per share: Net Income $ 3,974 $ 5,248 $ 8,322 $ 10,007 Less: Net income attributable to noncontrolling interest ( 261) ( 116) ( 513) ( 213) Net Income attributable to AT&T 3,713 5,132 7,809 9,794 Dilutive potential common shares: Share-based payment 4 4 10 9 Numerator for diluted earnings per share $ 3,717 $ 5,136 $ 7,819 $ 9,803 Denominators (000,000) Denominator for basic earnings per share: Weighted average number of common shares outstanding 7,323 6,351 7,318 6,257 Dilutive potential common shares: Share-based payment (in shares) 30 23 29 20 Denominator for diluted earnings per share 7,353 6,374 7,347 6,277 Basic earnings per share attributable to AT&T $ 0.51 $ 0.81 $ 1.06 $ 1.56 Diluted earnings per share attributable to AT&T $ 0.51 $ 0.81 $ 1.06 $ 1.56

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income	6 Months Ended
	Jun. 30, 2019
Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Income [Text Block]	NOTE 3. OTHER COMPREHENSIVE INCOME Changes in the balances of each component included in accumulated OCI are presented below. All amounts are net of tax and exclude noncontrolling interest. Foreign Currency Translation Adjustment Net Unrealized Gains (Losses) on Securities Net Unrealized Gains (Losses) on Derivative Instruments Defined Benefit Postretirement Plans Accumulated Other Comprehensive Income Balance as of December 31, 2018 $ ( 3,084) $ ( 2) $ 818 $ 6,517 $ 4,249 Other comprehensive income (loss) before reclassifications 159 42 ( 490) - ( 289) Amounts reclassified from accumulated OCI - - 17 1 ( 688) 2 ( 671) Net other comprehensive income (loss) 159 42 ( 473) ( 688) ( 960) Balance as of June 30, 2019 $ ( 2,925) $ 40 $ 345 $ 5,829 $ 3,289 Foreign Currency Translation Adjustment Net Unrealized Gains (Losses) on Securities Net Unrealized Gains (Losses) on Derivative Instruments Defined Benefit Postretirement Plans Accumulated Other Comprehensive Income Balance as of December 31, 2017 $ ( 2,054) $ 660 $ 1,402 $ 7,009 $ 7,017 Other comprehensive income (loss) before reclassifications ( 780) ( 12) 253 530 ( 9) Amounts reclassified from accumulated OCI - - 23 1 ( 657) 2 ( 634) Net other comprehensive income (loss) ( 780) ( 12) 276 ( 127) ( 643) Amounts reclassified to retained earnings - (658) 3 - - ( 658) Balance as of June 30, 2018 $ ( 2,834) $ ( 10) $ 1,678 $ 6,882 $ 5,716 1 (Gains) losses are included in Interest expense in the consolidated statements of income (see Note 7). 2 The amortization of prior service credits associated with postretirement benefits are included in Other income (expense) in the consolidated statements of income (see Note 6). 3 With the adoption of ASU 2016-01, the unrealized (gains) losses on our equity investments are reclassified to retained earnings.

Segment Information

Segment Information	6 Months Ended
	Jun. 30, 2019
Segment Information
Segment Information [Text Block]	NOTE 4. SEGMENT INFORMATION Our segments are strategic business units that offer products and services to different customer segments over various technology platforms and/or in different geographies that are managed accordingly. We analyze our segments based on segment operating contribution, which consists of operating income, excluding acquisition-related costs and other significant items (as discussed below), and equity in net income (loss) of affiliates for investments managed within each segment. We have four We also evaluate segment and business unit performance based on EBITDA and/or EBITDA margin, which is defined as operating contribution excluding equity in net income (loss) of affiliates and depreciation and amortization. We believe EBITDA to be a relevant and useful measurement to our investors as it is part of our internal management reporting and planning processes and it is an important metric that management uses to evaluate operating performance. EBITDA does not give effect to cash used for debt service requirements and thus does not reflect available funds for distributions, reinvestment or other discretionary uses. EBITDA margin is EBITDA divided by total revenues. The Communications segment provides wireless and wireline telecom, video and broadband services to consumers located in the U.S. or in U.S. territories and businesses globally. This segment contains the following business units:  Mobility provides nationwide wireless service and equipment.  Entertainment Group provides video, including over-the-top (OTT) services, broadband and voice communications services primarily to residential customers. This segment also sells advertising on DIRECTV and U-verse distribution platforms.  Business Wireline provides advanced IP-based services, as well as traditional voice and data services to business customers. The WarnerMedia segment develops, produces and distributes feature films, television, gaming and other content in various physical and digital formats globally. Historical financial results from AT&T’s Regional Sports Networks (RSNs) and equity investments (predominantly Game Show Network and Otter Media), previously included in Entertainment Group, have been reclassified into the WarnerMedia segment and are combined with the Time Warner operations for the period subsequent to our acquisition on June 14, 2018. This segment contains the following business units:  Turner is comprised of the historic Turner division as well as the financial results of our RSNs. This business unit primarily operates multichannel basic television networks and digital properties. Turner also sells advertising on its networks and digital properties.  Home Box Office consists of premium pay television and OTT services domestically and premium pay, basic tier television and OTT services internationally, as well as content licensing and home entertainment.  Warner Bros. consists of the production, distribution and licensing of television programming and feature films, the distribution of home entertainment products and the production and distribution of games. The Latin America segment provides entertainment and wireless services outside of the U.S. This segment contains the following business units:  Mexico provides wireless service and equipment to customers in Mexico.  Vrio provides video services primarily to residential customers using satellite technology in Latin America and the Caribbean. The Xandr segment provides advertising services and includes AppNexus, an advertising technology company we acquired in August 2018 . Corporate and Other reconcile our segment results to consolidated operating income and income before income taxes, and include:  Corporate , which consists of: (1) businesses no longer integral to our operations or which we no longer actively market, (2) corporate support functions, (3) impacts of corporate-wide decisions for which the individual operating segments are not being evaluated, (4) the reclassification of the amortization of prior service credits, which we continue to report with segment operating expenses, to consolidated other income (expense)-net and (5) the recharacterization of programming intangible asset amortization, for released programming acquired in the Time Warner acquisition, which we continue to report within WarnerMedia segment operating expense, to consolidated amortization expense. The programming and intangible asset amortization reclass was $ 112 in the second quarter and $ 262 for the first six months of 2019.  Acquisition-related items which consists of items associated with the merger and integration of acquired businesses, including amortization of intangible assets.  Certain significant items includes (1) employee separation charges associated with voluntary and/or strategic offers, (2) losses resulting from abandonment or impairment of assets and (3) other items for which the segments are not being evaluated.  Eliminations and consolidations , which (1) removes transactions involving dealings between our segments, including content licensing between WarnerMedia and Communications, and (2) includes adjustments for our reporting of the advertising business. Interest expense and other income (expense) – net, are managed only on a total company basis and are, accordingly, reflected only in consolidated results. For the three months ended June 30, 2019 Revenues Operations and Support Expenses EBITDA Depreciation and Amortization Operating Income (Loss) Equity in Net Income (Loss) of Affiliates Segment Contribution Communications Mobility $ 17,512 $ 9,654 $ 7,858 $ 2,025 $ 5,833 $ - $ 5,833 Entertainment Group 11,368 8,515 2,853 1,339 1,514 - 1,514 Business Wireline 6,628 3,982 2,646 1,256 1,390 - 1,390 Total Communications 35,508 22,151 13,357 4,620 8,737 - 8,737 WarnerMedia Turner 3,410 2,217 1,193 39 1,154 11 1,165 Home Box Office 1,716 1,131 585 12 573 15 588 Warner Bros. 3,389 2,918 471 31 440 - 440 Other ( 165) 23 ( 188) 9 ( 197) 29 ( 168) Total WarnerMedia 8,350 6,289 2,061 91 1,970 55 2,025 Latin America Vrio 1,032 881 151 165 ( 14) 12 ( 2) Mexico 725 813 ( 88) 119 ( 207) - ( 207) Total Latin America 1,757 1,694 63 284 ( 221) 12 ( 209) Xandr 485 147 338 13 325 - 325 Segment Total 46,100 30,281 15,819 5,008 10,811 $ 67 $ 10,878 Corporate and Other Corporate 209 626 ( 417) 134 ( 551) Acquisition-related items ( 30) 316 ( 346) 1,960 ( 2,306) Certain significant items - 94 ( 94) - ( 94) Eliminations and consolidations ( 1,322) ( 961) ( 361) ( 1) ( 360) AT&T Inc. $ 44,957 $ 30,356 $ 14,601 $ 7,101 $ 7,500 For the three months ended June 30, 2018 Revenues Operations and Support Expenses EBITDA Depreciation and Amortization Operating Income (Loss) Equity in Net Income (Loss) of Affiliates Segment Contribution Communications Mobility $ 17,282 $ 9,663 $ 7,619 $ 2,113 $ 5,506 $ - $ 5,506 Entertainment Group 11,478 8,657 2,821 1,345 1,476 ( 1) 1,475 Business Wireline 6,650 4,038 2,612 1,180 1,432 1 1,433 Total Communications 35,410 22,358 13,052 4,638 8,414 - 8,414 WarnerMedia Turner 667 372 295 11 284 5 289 Home Box Office 281 171 110 5 105 ( 1) 104 Warner Bros. 507 403 104 14 90 ( 1) 89 Other ( 62) ( 35) ( 27) 1 ( 28) ( 29) ( 57) Total WarnerMedia 1,393 911 482 31 451 ( 26) 425 Latin America Vrio 1,254 1,016 238 186 52 15 67 Mexico 697 787 ( 90) 127 ( 217) - ( 217) Total Latin America 1,951 1,803 148 313 ( 165) 15 ( 150) Xandr 392 59 333 - 333 - 333 Segment Total 39,146 25,131 14,015 4,982 9,033 $ ( 11) $ 9,022 Corporate and Other Corporate 320 661 ( 341) 118 ( 459) Acquisition-related items - 321 ( 321) 1,278 ( 1,599) Certain significant items - 152 ( 152) - ( 152) Eliminations and consolidations ( 480) ( 123) ( 357) - ( 357) AT&T Inc. $ 38,986 $ 26,142 $ 12,844 $ 6,378 $ 6,466 For the six months ended June 30, 2019 Revenues Operations and Support Expenses EBITDA Depreciation and Amortization Operating Income (Loss) Equity in Net Income (Loss) of Affiliates Segment Contribution Communications Mobility $ 35,079 $ 19,835 $ 15,244 $ 4,060 $ 11,184 $ - $ 11,184 Entertainment Group 22,696 17,042 5,654 2,662 2,992 - 2,992 Business Wireline 13,126 8,022 5,104 2,491 2,613 - 2,613 Total Communications 70,901 44,899 26,002 9,213 16,789 - 16,789 WarnerMedia Turner 6,853 4,353 2,500 99 2,401 36 2,437 Home Box Office 3,226 2,052 1,174 34 1,140 30 1,170 Warner Bros. 6,907 5,837 1,070 83 987 6 993 Other ( 257) 40 ( 297) 18 ( 315) 50 ( 265) Total WarnerMedia 16,729 12,282 4,447 234 4,213 122 4,335 Latin America Vrio 2,099 1,747 352 334 18 12 30 Mexico 1,376 1,538 ( 162) 250 ( 412) - ( 412) Total Latin America 3,475 3,285 190 584 ( 394) 12 ( 382) Xandr 911 307 604 26 578 - 578 Segment Total 92,016 60,773 31,243 10,057 21,186 $ 134 $ 21,320 Corporate and Other Corporate 418 1,139 ( 721) 303 ( 1,024) Acquisition-related items ( 72) 389 ( 461) 3,948 ( 4,409) Certain significant items - 342 ( 342) - ( 342) Eliminations and consolidations ( 2,578) ( 1,899) ( 679) ( 1) ( 678) AT&T Inc. $ 89,784 $ 60,744 $ 29,040 $ 14,307 $ 14,733 For the six months ended June 30, 2018 Revenues Operations and Support Expenses EBITDA Depreciation and Amortization Operating Income (Loss) Equity in Net Income (Loss) of Affiliates Segment Contribution Communications Mobility $ 34,637 $ 19,765 $ 14,872 $ 4,208 $ 10,664 $ - $ 10,664 Entertainment Group 22,909 17,468 5,441 2,655 2,786 ( 2) 2,784 Business Wireline 13,397 8,054 5,343 2,350 2,993 - 2,993 Total Communications 70,943 45,287 25,656 9,213 16,443 ( 2) 16,441 WarnerMedia Turner 779 446 333 12 321 32 353 Home Box Office 281 171 110 5 105 ( 1) 104 Warner Bros. 507 403 104 14 90 ( 1) 89 Other ( 62) ( 27) ( 35) 1 ( 36) ( 46) ( 82) Total WarnerMedia 1,505 993 512 32 480 ( 16) 464 Latin America Vrio 2,608 2,017 591 391 200 15 215 Mexico 1,368 1,590 ( 222) 254 ( 476) - ( 476) Total Latin America 3,976 3,607 369 645 ( 276) 15 ( 261) Xandr 729 109 620 1 619 - 619 Segment Total 77,153 49,996 27,157 9,891 17,266 $ ( 3) $ 17,263 Corporate and Other Corporate 653 1,396 ( 743) 141 ( 884) Acquisition-related items - 388 ( 388) 2,340 ( 2,728) Certain significant items - 332 ( 332) - ( 332) Eliminations and consolidations ( 782) ( 127) ( 655) - ( 655) AT&T Inc. $ 77,024 $ 51,985 $ 25,039 $ 12,372 $ 12,667 The following table is a reconciliation of Segment Contributions to “Income Before Income Taxes” reported on our consolidated statements of income: Three months ended June 30, Six months ended June 30, 2019 2018 2019 2018 Communications $ 8,737 $ 8,414 $ 16,789 $ 16,441 WarnerMedia 2,025 425 4,335 464 Latin America ( 209) ( 150) ( 382) ( 261) Xandr 325 333 578 619 Segment Contribution 10,878 9,022 21,320 17,263 Reconciling Items: Corporate and Other ( 551) ( 459) ( 1,024) ( 884) Merger and integration items ( 346) ( 340) ( 461) ( 432) Amortization of intangibles acquired ( 1,960) ( 1,278) ( 3,948) ( 2,340) Employee separation charges ( 94) ( 133) ( 342) ( 184) Natural disaster items - - - ( 104) Segment equity in net income of affiliates ( 67) 11 ( 134) 3 Eliminations and consolidations ( 360) ( 357) ( 678) ( 655) AT&T Operating Income 7,500 6,466 14,733 12,667 Interest Expense ( 2,149) ( 2,023) ( 4,290) ( 3,794) Equity in net income (loss) of affiliates 40 ( 16) 33 ( 7) Other income (expense) - net ( 318) 2,353 ( 32) 4,055 Income Before Income Taxes $ 5,073 $ 6,780 $ 10,444 $ 12,921 The following table presents intersegment revenues by segment: Intersegment Reconciliation Three months ended June 30, Six months ended June 30, 2019 2018 2019 2018 Intersegment revenues Communications $ 8 $ 2 $ 8 $ 2 WarnerMedia 861 174 1,719 209 Latin America - - - - Xandr - - - - Total Intersegment Revenues 869 176 1,727 211 Consolidations 453 304 851 571 Eliminations and consolidations $ 1,322 $ 480 $ 2,578 $ 782

Revenue Recognition

Revenue Recognition	6 Months Ended
	Jun. 30, 2019
Revenue from Contract with Customer [Abstract]
Revenue from Contract with Customer [Text Block]	NOTE 5. REVENUE RECOGNITION Revenue Categories The following tables set forth reported revenue by category and by business unit: For the three months ended June 30, 2019 Service Revenues Wireless Advanced Data Legacy Voice & Data Subscription Content Advertising Other Equipment Total Communications Mobility $ 13,935 $ - $ - $ - $ - $ 71 $ - $ 3,506 $ 17,512 Entertainment Group - 2,109 658 7,636 - 399 562 4 11,368 Business Wireline - 3,221 2,331 - - - 898 178 6,628 WarnerMedia Turner - - - 1,943 111 1,266 90 - 3,410 Home Box Office - - - 1,516 198 - 2 - 1,716 Warner Bros. - - - 23 3,175 10 181 - 3,389 Eliminations and Other - - - 54 ( 237) 9 9 - ( 165) Latin America Vrio - - - 1,032 - - - - 1,032 Mexico 479 - - - - - - 246 725 Xandr - - - - - 485 - - 485 Corporate and Other ( 32) - - - - - 211 - 179 Eliminations and consolidations - - - - ( 840) ( 399) ( 83) - ( 1,322) Total Operating Revenues $ 14,382 $ 5,330 $ 2,989 $ 12,204 $ 2,407 $ 1,841 $ 1,870 $ 3,934 $ 44,957 For the three months ended June 30, 2018 Service Revenues Wireless Advanced Data Legacy Voice & Data Subscription Content Advertising Other Equipment Total Communications Mobility $ 13,638 $ - $ - $ - $ - $ 44 $ - $ 3,600 $ 17,282 Entertainment Group - 1,981 772 7,786 - 387 551 1 11,478 Business Wireline - 3,031 2,730 - - - 690 199 6,650 WarnerMedia Turner - - - 410 21 223 13 - 667 Home Box Office - - - 270 11 - - - 281 Warner Bros. - - - 7 455 8 37 - 507 Eliminations and Other - - - - ( 56) ( 6) - - ( 62) Latin America Vrio - - - 1,254 - - - - 1,254 Mexico 417 - - - - - - 280 697 Xandr - - - - - 392 - - 392 Corporate and Other - - - - - - 320 - 320 Eliminations and consolidations - - - - ( 174) ( 387) 81 - ( 480) Total Operating Revenues $ 14,055 $ 5,012 $ 3,502 $ 9,727 $ 257 $ 661 $ 1,692 $ 4,080 $ 38,986 For the six months ended June 30, 2019 Service Revenues Wireless Advanced Data Legacy Voice & Data Subscription Content Advertising Other Equipment Total Communications Mobility $ 27,660 $ - $ - $ - $ - $ 138 $ - $ 7,281 $ 35,079 Entertainment Group - 4,179 1,341 15,360 - 749 1,063 4 22,696 Business Wireline - 6,407 4,735 - - - 1,647 337 13,126 WarnerMedia Turner - - - 3,908 246 2,527 172 - 6,853 Home Box Office - - - 2,850 371 - 5 - 3,226 Warner Bros. - - - 44 6,507 20 336 - 6,907 Eliminations and Other - - - 103 ( 389) 17 12 - ( 257) Latin America Vrio - - - 2,099 - - - - 2,099 Mexico 921 - - - - - - 455 1,376 Xandr - - - - - 911 - - 911 Corporate and Other ( 32) - - - - - 378 - 346 Eliminations and consolidations - - - - ( 1,677) ( 749) ( 152) - ( 2,578) Total Operating Revenues $ 28,549 $ 10,586 $ 6,076 $ 24,364 $ 5,058 $ 3,613 $ 3,461 $ 8,077 $ 89,784 For the six months ended June 30, 2018 Service Revenues Wireless Advanced Data Legacy Voice & Data Subscription Content Advertising Other Equipment Total Communications Mobility $ 27,000 $ - $ - $ - $ - $ 85 $ - $ 7,552 $ 34,637 Entertainment Group - 3,859 1,578 15,677 - 721 1,070 4 22,909 Business Wireline - 6,074 5,595 - - - 1,359 369 13,397 WarnerMedia Turner - - - 508 21 237 13 - 779 Home Box Office - - - 270 11 - - - 281 Warner Bros. - - - 7 455 8 37 - 507 Eliminations and Other - - - - ( 56) ( 6) - - ( 62) Latin America Vrio - - - 2,608 - - - - 2,608 Mexico 821 - - - - - - 547 1,368 Xandr - - - - - 729 - - 729 Corporate and Other - - - - - - 653 - 653 Eliminations and consolidations - - - - ( 209) ( 721) 148 - ( 782) Total Operating Revenues $ 27,821 $ 9,933 $ 7,173 $ 19,070 $ 222 $ 1,053 $ 3,280 $ 8,472 $ 77,024 Deferred Customer Contract Acquisition and Fulfillment Costs Costs to acquire and fulfill customer contracts, including commissions on service activations, for our wireless, business wireline and video entertainment services, are deferred and amortized over the contract period or expected customer relationship life, which typically ranges from three years five years For contracts with an estimated amortization period of less than one year, we expense incremental costs immediately. The following table presents the deferred customer contract acquisition costs and deferred customer contract fulfillment costs included on our consolidated balance sheets: June 30, December 31, Consolidated Balance Sheets 2019 2018 Deferred Acquisition Costs Other current assets $ 1,952 $ 1,901 Other Assets 2,760 2,073 Total deferred customer contract acquisition costs 4,712 3,974 Deferred Fulfillment Costs Other current assets 4,620 4,090 Other Assets 6,796 7,450 Total deferred customer contract fulfillment costs $ 11,416 $ 11,540 The following table presents deferred customer contract acquisition cost and deferred customer contract fulfillment cost amortization for the six months ended: June 30, June 30, Consolidated Statements of Income 2019 2018 Deferred acquisition cost amortization $ 1,026 $ 595 Deferred fulfillment cost amortization 2,381 1,889 Contract Assets and Liabilities A contract asset is recorded when revenue is recognized in advance of our right to bill and receive consideration. The contract asset will decrease as services are provided and billed. For example, when installment sales include promotional discounts (e.g., “buy one get one free”) the difference between revenue recognized and consideration received is recorded as a contract asset to be amortized over the contract term. When consideration is received in advance of the delivery of goods or services, a contract liability is recorded for deferred revenue. Reductions in the contract liability will be recorded as we satisfy the performance obligations. The following table presents contract assets and liabilities on our consolidated balance sheets: June 30, December 31, Consolidated Balance Sheets 2019 2018 Contract asset $ 2,188 $ 1,896 Contract liability 6,653 6,856 Our January 1, 2019 contract liability recorded as customer contract revenue during 2019 was $ 4,974. Our consolidated balance sheets at June 30, 2019 and December 31, 2018 included approximately $ 1,463 and $ 1,244, respectively, for the current portion of our contract asset in “Other current assets” and $ 5,533 and $ 5,752, respectively, for the current portion of our contract liability in “Advanced billings and customer deposits.” Remaining Performance Obligations Remaining performance obligations represent services we are required to provide to customers under bundled or discounted arrangements, which are satisfied as services are provided over the contract term. In determining the transaction price allocated, we do not include non-recurring charges and estimates for usage, nor do we consider arrangements with an original expected duration of less than one year, which are primarily prepaid wireless, video and residential internet agreements. Remaining performance obligations associated with business contracts reflect recurring charges billed, adjusted to reflect estimates for sales incentives and revenue adjustments. Performance obligations associated with wireless contracts are estimated using a portfolio approach in which we review all relevant promotional activities, calculating the remaining performance obligation using the average service component for the portfolio and the average device price. As of June 30, 2019, the aggregate amount of the transaction price allocated to remaining performance obligations was $ 40,646, of which we expect to recognize approximately 80% by the end of 2020, with the balance recognized thereafter.

Pension And Postretirement Bene

Pension And Postretirement Benefits	6 Months Ended
	Jun. 30, 2019
Pension And Postretirement Benefits
Pension and Other Postretirement Benefits Disclosure [Text Block]	NOTE 6. PENSION AND POSTRETIREMENT BENEFITS Many of our employees are covered by one of our noncontributory pension plans. We also provide certain medical, dental, life insurance and death benefits to certain retired employees under various plans and accrue actuarially determined postretirement benefit costs. Our objective in funding these plans, in combination with the standards of the Employee Retirement Income Security Act of 1974, as amended (ERISA), is to accumulate assets sufficient to provide benefits described in the plans to employees upon their retirement. In first quarter of 2019, for certain management participants in our pension plan who terminated employment before April 1, 2019, we offered the option of more favorable 2018 interest rates and mortality basis for determining lump-sum distributions. For the quarter ended March 31, 2019, we recorded special termination benefits of $ 93 associated with this offer in “Other income (expense) – net.” We also committed to a plan to offer certain terminated vested pension plan participants the opportunity to receive their benefit in a lump-sum amount. We recognize actuarial gains and losses on pension and postretirement plan assets in our consolidated results as a component of “Other income (expense) – net” at our annual measurement date of December 31, unless earlier remeasurements are required. We anticipate total distributions from the pension plan will exceed the threshold of service and interest costs for 2019, requiring us to follow settlement accounting and remeasure our pension benefit obligation each quarter-end of 2019. These remeasurements resulted in the recognition of actuarial losses of $ 432 and $ 1,699 in the first and second quarters of 2019, respectively. As part of our 2019 remeasurements, we decreased the weighted-average discount rate used to measure our pension benefit obligation from 4.50% at December 31, 2018 to 4.10% at March 31, 2019, and to 3.70% at June 30, 2019. The discount rate in effect for determining pension service and interest costs after remeasurement is 3.90% and 3.25%, respectively. Our remeasurements also reflect actual returns on plan assets of 10.0% (six-month rate). Our expected long-term rate of return on pension plan assets is an annualized 7.00% for the remainder of 2019. The following table details pension and postretirement benefit costs included in the accompanying consolidated statements of income. The service cost component of net periodic pension cost (benefit) is recorded in operating expenses in the consolidated statements of income while the remaining components are recorded in “Other income (expense) – net.” Three months ended Six months ended June 30, June 30, 2019 2018 2019 2018 Pension cost: Service cost – benefits earned during the period $ 243 $ 284 $ 483 $ 575 Interest cost on projected benefit obligation 508 504 1,057 991 Expected return on assets ( 880) ( 755) ( 1,731) ( 1,515) Amortization of prior service credit ( 24) ( 29) ( 57) ( 59) Actuarial (gain) loss 1,699 ( 1,796) 2,131 ( 1,796) Net pension (credit) cost $ 1,546 $ ( 1,792) $ 1,883 $ ( 1,804) Postretirement cost: Service cost – benefits earned during the period $ 18 $ 26 $ 36 $ 55 Interest cost on accumulated postretirement benefit obligation 186 195 372 386 Expected return on assets ( 56) ( 75) ( 112) ( 152) Amortization of prior service credit ( 426) ( 413) ( 852) ( 810) Actuarial (gain) loss - - - ( 930) Net postretirement (credit) cost $ ( 278) $ ( 267) $ ( 556) $ ( 1,451) Combined net pension and postretirement (credit) cost $ 1,268 $ ( 2,059) $ 1,327 $ ( 3,255) We also provide senior- and middle-management employees with nonqualified, unfunded supplemental retirement and savings plans. Net supplemental pension benefits costs not included in the table above were $ 25 and $ 21 in the second quarter and $ 50 and $ 42 for the first six months of 2019 and 2018, respectively.

Fair Value Measurements And Dis

Fair Value Measurements And Disclosure	6 Months Ended
	Jun. 30, 2019
Fair Value Disclosures
Fair Value Measurements And Disclosure [Text Block]	NOTE 7. FAIR VALUE MEASUREMENTS AND DISCLOSURE The Fair Value Measurement and Disclosure framework in ASC 820, “Fair Value Measurement,” provides a three-tiered fair value hierarchy based on the reliability of the inputs used to determine fair value. Level 1 refers to fair values determined based on quoted prices in active markets for identical assets. Level 2 refers to fair values estimated using significant other observable inputs and Level 3 includes fair values estimated using significant unobservable inputs. The fair value measurements level of an asset or liability within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. Our valuation techniques 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 future net realizable value or reflective of future fair values. We believe our 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 since December 31, 2018. 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: June 30, 2019 December 31, 2018 Carrying Fair Carrying Fair Amount Value Amount Value Notes and debentures 1 $ 165,443 $ 181,230 $ 171,529 $ 172,287 Commercial paper 3,164 3,164 3,048 3,048 Bank borrowings 4 4 4 4 Investment securities 2 3,518 3,518 3,409 3,409 1 Includes credit agreement borrowings. 2 Excludes investments accounted for under the equity method. The carrying amount of debt with an original maturity of less than one year approximates market value. The fair value measurements used for notes and debentures are considered Level 2 and are determined using various methods, including quoted prices for identical or similar securities in both active and inactive markets. Following is the fair value leveling for investment securities and derivatives that are measured at fair value as of June 30, 2019 and December 31, 2018. Derivatives designated as hedging instruments are reflected as “Other assets,” “Other noncurrent liabilities” and, for a portion of interest rate swaps, “Other current assets” on our consolidated balance sheets. June 30, 2019 Level 1 Level 2 Level 3 Total Equity Securities Domestic equities $ 1,016 $ - $ - $ 1,016 International equities 235 - - 235 Fixed income equities 209 - - 209 Available-for-Sale Debt Securities - 1,031 - 1,031 Asset Derivatives Interest rate swaps - 26 - 26 Cross-currency swaps - 307 - 307 Foreign exchange contracts - 68 - 68 Liability Derivatives Cross-currency swaps - ( 2,929) - ( 2,929) Interest rate locks - ( 23) - ( 23) Foreign exchange contracts - ( 3) - ( 3) December 31, 2018 Level 1 Level 2 Level 3 Total Equity Securities Domestic equities $ 1,061 $ - $ - $ 1,061 International equities 256 - - 256 Fixed income equities 172 - - 172 Available-for-Sale Debt Securities - 870 - 870 Asset Derivatives Cross-currency swaps - 472 - 472 Foreign exchange contracts - 87 - 87 Liability Derivatives Interest rate swaps - ( 39) - ( 39) Cross-currency swaps - ( 2,563) - ( 2,563) Foreign exchange contracts - ( 2) - ( 2) Investment Securities Our investment securities include both equity and debt securities that are measured at fair value, as well as equity securities without readily determinable fair values. A substantial portion of the fair values of our investment securities is estimated based on quoted market prices. Investments in equity securities not traded on a national securities exchange are valued at cost, less any impairment, and adjusted for changes resulting from observable, orderly transactions for identical or similar securities. Investments in debt securities not traded on a national securities exchange are valued using pricing models, quoted prices of securities with similar characteristics or discounted cash flows. The components comprising total gains and losses on equity securities are as follows: Three months ended Six months ended June 30, June 30, 2019 2018 2019 2018 Total gains (losses) recognized on equity securities $ 50 $ 21 $ 210 $ 8 Gains (Losses) recognized on equity securities sold 69 ( 3) 155 49 Unrealized gains (losses) recognized on equity securities held at end of period ( 19) 24 55 ( 41) At June 30, 2019, available-for-sale debt securities totaling $ 1,031 have maturities as follows - less than one year: $ 26; one to three years: $ 185; three to five years: $ 151; five or more years: $ 669. Our cash equivalents (money market securities), short-term investments (certificate and time deposits) and nonrefundable customer deposits are recorded at amortized cost, and the respective carrying amounts approximate fair values. Short-term investments and nonrefundable customer deposits are recorded in “Other current assets” and our investment securities are recorded in “Other Assets” on the consolidated balance sheets. Derivative Financial Instruments We enter into derivative transactions to manage certain market risks, primarily interest rate risk and foreign currency exchange risk. This includes the use of interest rate swaps, interest rate locks, foreign exchange forward contracts and combined interest rate foreign exchange contracts (cross-currency swaps). We do not use derivatives for trading or speculative purposes. We record derivatives on our consolidated balance sheets at fair value that is derived from observable market data, including yield curves and foreign exchange rates (all of our derivatives are Level 2). Cash flows associated with derivative instruments are presented in the same category on the consolidated statements of cash flows as the item being hedged. Fair Value Hedging We designate our fixed-to-floating interest rate swaps as fair value hedges. The purpose of these swaps is to manage interest rate risk by managing our mix of fixed-rate and floating-rate debt. These swaps involve the receipt of fixed-rate amounts for floating interest rate payments over the life of the swaps without exchange of the underlying principal amount. We also designate some of our foreign exchange contracts as fair value hedges. The purpose of these contracts is to hedge currency risk associated with foreign-currency-denominated operating assets and liabilities. Accrued and realized gains or losses from fair value hedges impact the same category on the consolidated statements of income as the item being hedged. Unrealized gains on fair value hedges are recorded at fair market value as assets, and unrealized losses are recorded at fair market value as liabilities. Changes in the fair value of derivative instruments designated as fair value hedges are offset against the change in fair value of the hedged assets or liabilities through earnings. In the six months ended June 30, 2019 and 2018, no ineffectiveness was measured on fair value hedges . Cash Flow Hedging We designate our cross-currency swaps as cash flow hedges. We have entered into multiple cross-currency swaps to hedge our exposure to variability in expected future cash flows that are attributable to foreign currency risk generated from the issuance of our foreign-denominated debt. These agreements include initial and final exchanges of principal from fixed foreign currency denominated amounts to fixed U.S. dollar denominated amounts, to be exchanged at a specified rate that is usually determined by the market spot rate upon issuance. They also include an interest rate swap of a fixed or floating foreign currency-denominated interest rate to a fixed U.S. dollar denominated interest rate. We also designate some of our foreign exchange contracts as cash flow hedges. The purpose of these contracts is to hedge currency risk associated with variability in anticipated foreign-currency-denominated cash flows, such as unremitted or forecasted royalty and license fees owed to WarnerMedia’s domestic companies for the sale or anticipated sale of U.S. copyrighted products abroad or cash flows for certain film production costs denominated in a foreign currency. Unrealized gains on derivatives designated as cash flow hedges are recorded at fair value as assets, and unrealized losses are recorded at fair value as liabilities. For derivative instruments designated as cash flow hedges, the effective portion is reported as a component of accumulated OCI until reclassified into the consolidated statements of income in the same period the hedged transaction affects earnings. The gain or loss on the ineffective portion is recognized as “Other income (expense) – net” in the consolidated statements of income in each period. We evaluate the effectiveness of our cash flow hedges each quarter. In the six months ended June 30, 2019 and 2018, no ineffectiveness was measured on cash flow hedges. Periodically, we enter into and designate interest rate locks to partially hedge the risk of changes in interest payments attributable to increases in the benchmark interest rate during the period leading up to the probable issuance of fixed-rate debt. We designate our interest rate locks as cash flow hedges. Gains and losses from the settlement of our interest rate locks are amortized into income over the life of the related debt, except where a material amount is deemed to be ineffective, which would be immediately reclassified to “Other income (expense) – net” in the consolidated statements of income. Over the next 12 months, we expect to reclassify $ 63 from accumulated OCI to interest expense due to the amortization of net losses on historical interest rate locks. Net Investment Hedging We have designated € 700 million aggregate principal amount of debt as a hedge of the variability of some of the Euro-denominated net investments of WarnerMedia. The gain or loss on the debt that is designated as, and is effective as, an economic hedge of the net investment in a foreign operation is recorded as a currency translation adjustment within accumulated OCI, net on the consolidated balance sheet. Collateral and Credit-Risk Contingency We have entered into agreements with our derivative counterparties establishing collateral thresholds based on respective credit ratings and netting agreements. At June 30, 2019, we had posted collateral of $ 242 (a deposit asset) and held collateral of $ 86 (a receipt liability). Under the agreements, if AT&T’s credit rating had been downgraded one rating level by Fitch Ratings, before the final collateral exchange in June, we would have been required to post additional collateral of $ 137. If AT&T’s credit rating had been downgraded four ratings levels by Fitch Ratings, two levels by S&P, and two levels by Moody’s, we would have been required to post additional collateral of $ 2,668. If DIRECTV Holdings LLC’s credit rating had been downgraded below BBB- by S&P, we would have been required to post additional collateral of $ 262. At December 31, 2018, we had posted collateral of $ 1,675 (a deposit asset) and held collateral of $ 103 (a receipt liability). We do not offset the fair value of collateral, whether the right to reclaim cash collateral (a receivable) or the obligation to return cash collateral (a payable) exists, against the fair value of the derivative instruments. Following are the notional amounts of our outstanding derivative positions: June 30, December 31, 2019 2018 Interest rate swaps 1 $ 1,633 $ 3,483 Cross-currency swaps 40,311 42,192 Interest rate locks 2,000 - Foreign exchange contracts 669 2,094 Total $ 44,613 $ 47,769 1 In July 2019 we settled interest rate swaps with a notional value of $ 780. Following are the related hedged items affecting our financial position and performance: Effect of Derivatives on the Consolidated Statements of Income Three months ended Six months ended June 30, June 30, Fair Value Hedging Relationships 2019 2018 2019 2018 Interest rate swaps (Interest expense): Gain (Loss) on interest rate swaps $ 35 $ ( 9) $ 59 $ ( 62) Gain (Loss) on long-term debt ( 35) 9 ( 59) 62 In addition, the net swap settlements that accrued and settled in the quarter ended June 30 were offset against interest expense. Three months ended Six months ended June 30, June 30, Cash Flow Hedging Relationships 2019 2018 2019 2018 Cross-currency swaps: Gain (Loss) recognized in accumulated OCI $ ( 763) $ ( 533) $ ( 595) $ 321 Foreign exchange contracts: Gain (Loss) recognized in accumulated OCI 4 - ( 3) - Other income (expense) - net reclassified from accumulated OCI into income 7 - 10 - Interest rate locks: Gain (Loss) recognized in accumulated OCI ( 23) - ( 23) - Interest income (expense) reclassified from accumulated OCI into income ( 16) ( 14) ( 32) ( 29)

Acquisitions, Dispositions And

Acquisitions, Dispositions And Other Adjustments	6 Months Ended
	Jun. 30, 2019
Acquisitions, Dispositions And Other Adjustments
Acquisitions, Dispositions And Other Adjustments [Text Block]	NOTE 8. ACQUISITIONS, DISPOSITIONS AND OTHER ADJUSTMENTS Acquisitions Time Warner On June 14, 2018, we completed our acquisition of Time Warner, a leader in media and entertainment whose major businesses encompass an array of some of the most respected media brands. We paid Time Warner shareholders $ 36,599 in AT&T stock and $ 42,100 in cash. Total consideration, including share-based payment arrangements and other adjustments totaled $ 79,358, excluding Time Warner’s net debt at acquisition. The fair values of the assets acquired and liabilities assumed were determined using the income, cost and market approaches. The fair value measurements were primarily based on significant inputs that are not observable in the market and thus represent a Level 3 measurement as defined in ASC 820, other than cash and long-term debt acquired in the acquisition. The income approach was primarily used to value the intangible assets, consisting primarily of distribution network, released TV and film content, in-place advertising network, trade names, and franchises. The income approach estimates fair value for an asset based on the present value of cash flow projected to be generated by the asset. Projected cash flow is discounted at a required rate of return that reflects the relative risk of achieving the cash flow and the time value of money. The cost approach, which estimates value by determining the current cost of replacing an asset with another of equivalent economic utility, was used, as appropriate, for plant, property and equipment. The cost to replace a given asset reflects the estimated reproduction or replacement cost for the property, less an allowance for loss in value due to depreciation. Goodwill is calculated as the difference between the acquisition date fair value of the consideration transferred and the fair value of the net assets acquired, and represents the future economic benefits that we expect to achieve as a result of the acquisition. The following table summarizes the fair values of the Time Warner assets acquired and liabilities assumed and related deferred income taxes as of the acquisition date: Assets acquired Cash $ 1,889 Accounts receivable 9,020 All other current assets 2,913 Noncurrent inventory and theatrical film and television production costs 5,591 Property, plant and equipment 4,693 Intangible assets subject to amortization Distribution network 18,040 Released television and film content 10,806 Trademarks and trade names 18,081 Other 10,300 Investments and other assets 9,438 Goodwill 38,801 Total assets acquired 129,572 Liabilities assumed Current liabilities, excluding current portion of long-term debt 8,294 Debt maturing within one year 4,471 Long-term debt 18,394 Other noncurrent liabilities 19,054 Total liabilities assumed 50,213 Net assets acquired 79,359 Noncontrolling interest ( 1) Aggregate value of consideration paid $ 79,358 Purchased goodwill is not expected to be deductible for tax purposes. All of the goodwill was allocated to the WarnerMedia segment. Dispositions Hudson Yards In June 2019 2,081 and recorded a loss of $ 102 resulting from transaction costs (primarily real estate transfer taxes). Hulu In April 2019 1,430 and recorded a gain of $ 740 .

Sale of Equipment Installment R

Sale of Equipment Installment Receivables	6 Months Ended
	Jun. 30, 2019
Other Assets [Abstract]
Finance Receivables Disclosure[Text Block]	NOTE 9. SALES OF RECEIVABLES We have agreements with various third-party financial institutions pertaining to the sale of certain types of our accounts receivable. The most significant of these programs are discussed in detail below and generally consist of (1) receivables arising from equipment installment plans, which are sold for cash and a deferred purchase price, and (2) receivables related to our WarnerMedia business. Under these programs, we transfer receivables to purchasers in exchange for cash and additional consideration upon settlement of the receivables, where applicable. Under the terms of our agreements for these programs, we continue to bill and collect the payments from our customers on behalf of the financial institutions. The sales of receivables did not have a material impact on our consolidated statements of income or to “Total Assets” reported on our consolidated balance sheets. We reflect cash receipts on sold receivables as cash flows from operations in our consolidated statements of cash flows. Cash receipts on the deferred purchase price are classified as cash flows from investing activities. Our equipment installment and WarnerMedia programs are discussed in detail below. A summary of the receivables and accounts being serviced is as follows: June 30, 2019 December 31, 2018 Equipment Equipment Installment WarnerMedia Installment WarnerMedia Gross receivables: $ 4,519 $ 2,769 $ 5,994 $ - Balance sheet classification Accounts receivable Notes receivable 2,599 - 3,457 - Trade receivables 449 2,286 438 - Other Assets Noncurrent notes and trade receivables 1,471 483 2,099 - Outstanding portfolio of receivables derecognized from our consolidated balance sheets 9,528 3,725 9,065 - Cash proceeds received, net of remittances 1 7,073 3,725 6,508 - 1 Represents amounts to which financial institutions remain entitled, excluding the deferred purchase price. Equipment Installment Receivables We offer our customers the option to purchase certain wireless devices in installments over a specified period of time and, in many cases, once certain conditions are met, they may be eligible to trade in the original equipment for a new device and have the remaining unpaid balance paid or settled. We maintain a program under which we transfer a portion of these receivables in exchange for cash and additional consideration upon settlement of the receivables, referred to as the deferred purchase price. In the event a customer trades in a device prior to the end of the installment contract period, we agree to make a payment to the financial institutions equal to any outstanding remaining installment receivable balance. Accordingly, we record a guarantee obligation for this estimated amount at the time the receivables are transferred. The following table sets forth a summary of equipment installment receivables sold during the three and six months ended June 30, 2019 and 2018: Three months ended Six months ended June 30, June 30, 2019 2018 2019 2018 Gross receivables sold $ 2,244 $ 1,906 $ 4,945 $ 4,916 Net receivables sold 1 2,133 1,811 4,679 4,606 Cash proceeds received 1,920 1,532 4,195 3,927 Deferred purchase price recorded 261 307 570 826 Guarantee obligation recorded 93 72 194 195 1 Receivables net of allowance, imputed interest and equipment trade-in right guarantees. Three months ended Six months ended June 30, June 30, 2019 2018 2019 2018 Fair value of repurchased receivables $ 235 $ 1,481 $ 658 $ 1,481 Carrying value of deferred purchase price 225 1,393 632 1,393 Gain (loss) on repurchases 1 $ 10 $ 88 $ 26 $ 88 1 These gains (losses) are included in “Selling, general and administrative” in the consolidated statements of income. At June 30, 2019 and December 31, 2018, our deferred purchase price receivable was $ 2,242 and $ 2,370, respectively, of which $ 1,531 1,448 454 and $ 439, respectively, of which $ 91 and $ 196 are included in “Accounts payable and accrued liabilities” on our consolidated balance sheets, with the remainder in “Other noncurrent liabilities.” Our maximum exposure to loss as a result of selling these equipment installment receivables is limited to the total amount of our deferred purchase price and guarantee obligation. WarnerMedia Receivables In March 2019, we entered into a revolving agreement to transfer $ 1,400 of certain receivables from our WarnerMedia business to various financial institutions on a recurring basis in exchange for cash equal to the gross receivables transferred. As customers pay their balances, we transfer additional receivables into the program, resulting in our gross receivables sold exceeding net cash flow impacts. In June 2019, we expanded the program another $ 2,600 for a total maximum outstanding amount of $ 4,000, of which approximately $ 3,725 is outstanding at June 30, 2019. The transferred receivables are fully guaranteed by our subsidiary, which holds additional receivables in the amount of $ 2,769 that are pledged as collateral under this agreement. The transfers are recorded at fair value of the proceeds received and obligations assumed less derecognized receivables. Our maximum exposure to loss related to selling these receivables is limited to the amount outstanding. The following table sets forth a summary of WarnerMedia receivables sold during the three and six months ended June 30, 2019 and 2018: Three months ended Six months ended June 30, June 30, 2019 2018 2019 2018 Initial sale of receivables $ 2,325 $ - $ 3,725 $ - Collections reinvested under revolving agreement 2,127 - 2,127 - Gross receivables sold/cash proceeds received 4,452 - 5,852 - Net receivables sold 1 4,134 - 5,497 - Obligations recorded 384 - 436 - 1 Receivables net of allowance, return and incentive reserves and imputed interest

Leases

Leases	6 Months Ended
	Jun. 30, 2019
Leases [Abstract]
Leases of Lessee Disclosure [Text Block]	NOTE 10. LEASES We have operating and finance leases for certain facilities and equipment used in operations. As of June 30, 2019, our leases have remaining lease terms of 1 15 some of our leases include options to terminate the leases within one year Subsequent to the adoption of ASC 842 on January 1, 2019, we have recognized a right-of-use asset for both operating and finance leases, and an operating lease liability that represents the present value of our obligation to make payments over the lease term. The present value of the lease payments is calculated using the incremental borrowing rate for operating and finance leases, which was determined using a portfolio approach based on the rate of interest that we would have to pay to borrow an amount equal to the lease payments on a collateralized basis over a similar term. We use the unsecured borrowing rate and risk-adjust that rate to approximate a collateralized rate in the currency of the lease, which is updated on a quarterly basis for measurement of new lease obligations. The components of lease expense were as follows: Three months ended Six months ended June 30, 2019 June 30, 2019 Operating lease cost $ 1,610 $ 2,852 Finance lease cost: Amortization of right-of-use assets $ 70 $ 136 Interest on lease obligation 42 84 Total finance lease cost $ 112 $ 220 Supplemental balance sheet information related to leases is as follows: At June 30, 2019 Operating Leases Operating lease right-of-use assets $ 22,650 Accounts payable and accrued liabilities $ 3,344 Operating lease obligation 20,568 Total operating lease obligation $ 23,912 Finance Leases Property, plant and equipment, at cost $ 3,362 Accumulated depreciation and amortization ( 1,178) Property, plant and equipment, net $ 2,184 Current portion of long-term debt $ 137 Long-term debt 1,809 Total finance lease obligation $ 1,946 Weighted-Average Remaining Lease Term Operating leases 8.4 yrs Finance leases 10.7 yrs Weighted-Average Discount Rate Operating leases 4.7 % Finance leases 8.5 % Future minimum maturities of lease obligations are as follows: At June 30, 2019 Operating Finance Leases Leases Remainder of 2019 $ 2,250 $ 169 2020 4,276 296 2021 3,841 274 2022 3,561 264 2023 3,228 253 Thereafter 12,502 1,814 Total lease payments 29,658 3,070 Less imputed interest ( 5,746) ( 1,124) Total $ 23,912 $ 1,946

Additional Financial Informatio

Additional Financial Information	6 Months Ended
	Jun. 30, 2019
Additional Financial Information [Abstract]
Additional Financial Information [Text Block]	NOTE 11. ADDITIONAL FINANCIAL INFORMATION Cash and Cash Flows We typically maintain our restricted cash balances for purchases and sales of certain investment securities and funding of certain deferred compensation benefit payments. The components comprising cash and cash equivalents and restricted cash are as follows: June 30, December 31, 2019 2018 2018 2017 Cash and cash equivalents $ 8,423 $ 13,523 $ 5,204 $ 50,498 Restricted cash in Other current assets 15 12 61 6 Restricted cash in Other Assets 216 218 135 428 Cash and cash equivalents and restricted cash $ 8,654 $ 13,753 $ 5,400 $ 50,932 Supplemental disclosures for the statement of cash flows related to operating leases are as follows: Six months ended June 30, 2019 2018 Cash Flows from Operating Activities Cash paid for amounts included in lease obligations Operating cash flows from operating leases $ 2,464 $ 2,458 Supplemental Lease Cash Flow Disclosures Operating lease right-of-use assets obtained in exchange for new operating lease obligations 3,899 - Cash paid (received) from interest and income taxes during the period are as follows: Six months ended June 30, 2019 2018 Interest $ 4,410 $ 4,045 Income taxes, net of refunds ( 32) ( 757) Other Noncash Investing and Financing Activities In 2019, we recorded approximately $ 1,265 of new vendor financing commitments related to capital investments, and we have repaid $ 1,836 of such obligations during the year. In connection with capital improvements, we negotiate favorable payment terms (referred to as vendor financing), which are excluded from our investing activities and reported as financing activities.

Preparation Of Interim Financ_2

Preparation Of Interim Financial Statements (Policy)	6 Months Ended
	Jun. 30, 2019
Accounting Policies [Abstract]
Leases [Policy Text Block]	Leases As of January 1, 2019, we adopted, with modified retrospective The key change upon adoption of the standard was balance sheet recognition, given that the recognition of lease expense on our income statement is similar to our historical accounting. Using the modified retrospective transition method of adoption, we did not adjust the balance sheet for comparative periods but recorded a cumulative effect adjustment to retained earnings on January 1, 2019. We elected the package of practical expedients permitted under the transition guidance within the new standard, which, among other things, allowed us to carry forward our historical lease classification. We also elected the practical expedient related to land easements, allowing us to carry forward our accounting treatment for land easements on existing agreements that were not accounted for as leases. We excluded all the leases with original terms of one year or less. Additionally, we elected to not separate lease and non-lease components for certain classes of assets in arrangements where we are the lessee and for certain classes of assets where we are the lessor. Our accounting for finance leases did not change from our prior accounting for capital leases. The adoption of ASC 842 resulted in the recognition of an operating lease liability of $ 22,121 20,960. The cumulative effect of the adoption to retained earnings was an increase of $ 316 reflecting the reclassification of deferred gains related to sale/leaseback transactions. We do not believe the standard will materially impact our future income statements or have a notable impact on our liquidity. The standard will have no impact on our debt-covenant compliance under our current agreements.
Television and Film Inventory Cost [Policy Text Block]	Deferral of Episodic Television and Film Costs In March 2019, the FASB issued ASU No. 2019-02, “ Entertainment—Films—Other Assets—Film Costs (Subtopic 926-20) and Entertainment—Broadcasters—Intangibles—Goodwill and Other (Subtopic 920-350): Improvements to Accounting for Costs of Films and License Agreements for Program Materials” (ASU 2019-02), which we early adopted as of January 1, 2019 , with prospective 2,274
Spectrum Licenses [Policy Text Block]	Spectrum Licenses in Mexico During the first quarter of 2019, in conjunction with the renewal process of certain spectrum licenses in Mexico, we reassessed the estimated economic lives and renewal assumptions for these licenses. As a result, we have changed the life of these licenses from indefinite to finite-lived. On January 1, 2019, we began amortizing our spectrum licenses in Mexico over their average remaining economic life of 25 years. This change in accounting does not materially impact our income statement.
Credit Loss Standard [Policy Text Block]	Credit Loss Standard In June 2016, the FASB issued ASU No. 2016-13, “Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments” (ASU 2016-13, as amended), which replaces the incurred loss impairment methodology under current GAAP. ASU 2016-13 affects trade receivables, loans and other financial assets that are not subject to fair value through net income, as defined by the standard. The amendments under ASU 2016-13 will be effective for years beginning after December 15, 2019, and interim periods within those years. We are currently evaluating ASU 2016-13 but do not anticipate it will have a material impact on our financial statements.

Pension And Postretirement Be_2

Pension And Postretirement Benefits (Policy)	6 Months Ended
	Jun. 30, 2019
Pension And Postretirement Benefits
Recognition Of Actuarial Gains And Losses	We recognize actuarial gains and losses on pension and postretirement plan assets in our consolidated results as a component of “Other income (expense) – net” at our annual measurement date of December 31, unless earlier remeasurements are required.

Fair Value Measurements And D_2

Fair Value Measurements And Disclosure (Policy)	6 Months Ended
	Jun. 30, 2019
Fair Value Disclosures
Derivatives, Offsetting Fair Value Amounts, Policy [Policy Text Block]	We do not offset the fair value of collateral, whether the right to reclaim cash collateral (a receivable) or the obligation to return cash collateral (a payable) exists, against the fair value of the derivative instruments.

Earnings Per Share (Tables)

Earnings Per Share (Tables)	6 Months Ended
	Jun. 30, 2019
Earnings Per Share
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	Three months ended Six months ended June 30, June 30, 2019 2018 2019 2018 Numerators Numerator for basic earnings per share: Net Income $ 3,974 $ 5,248 $ 8,322 $ 10,007 Less: Net income attributable to noncontrolling interest ( 261) ( 116) ( 513) ( 213) Net Income attributable to AT&T 3,713 5,132 7,809 9,794 Dilutive potential common shares: Share-based payment 4 4 10 9 Numerator for diluted earnings per share $ 3,717 $ 5,136 $ 7,819 $ 9,803 Denominators (000,000) Denominator for basic earnings per share: Weighted average number of common shares outstanding 7,323 6,351 7,318 6,257 Dilutive potential common shares: Share-based payment (in shares) 30 23 29 20 Denominator for diluted earnings per share 7,353 6,374 7,347 6,277 Basic earnings per share attributable to AT&T $ 0.51 $ 0.81 $ 1.06 $ 1.56 Diluted earnings per share attributable to AT&T $ 0.51 $ 0.81 $ 1.06 $ 1.56

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Tables)	6 Months Ended
	Jun. 30, 2019
Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Income	Foreign Currency Translation Adjustment Net Unrealized Gains (Losses) on Securities Net Unrealized Gains (Losses) on Derivative Instruments Defined Benefit Postretirement Plans Accumulated Other Comprehensive Income Balance as of December 31, 2018 $ ( 3,084) $ ( 2) $ 818 $ 6,517 $ 4,249 Other comprehensive income (loss) before reclassifications 159 42 ( 490) - ( 289) Amounts reclassified from accumulated OCI - - 17 1 ( 688) 2 ( 671) Net other comprehensive income (loss) 159 42 ( 473) ( 688) ( 960) Balance as of June 30, 2019 $ ( 2,925) $ 40 $ 345 $ 5,829 $ 3,289 Foreign Currency Translation Adjustment Net Unrealized Gains (Losses) on Securities Net Unrealized Gains (Losses) on Derivative Instruments Defined Benefit Postretirement Plans Accumulated Other Comprehensive Income Balance as of December 31, 2017 $ ( 2,054) $ 660 $ 1,402 $ 7,009 $ 7,017 Other comprehensive income (loss) before reclassifications ( 780) ( 12) 253 530 ( 9) Amounts reclassified from accumulated OCI - - 23 1 ( 657) 2 ( 634) Net other comprehensive income (loss) ( 780) ( 12) 276 ( 127) ( 643) Amounts reclassified to retained earnings - (658) 3 - - ( 658) Balance as of June 30, 2018 $ ( 2,834) $ ( 10) $ 1,678 $ 6,882 $ 5,716 1 (Gains) losses are included in Interest expense in the consolidated statements of income (see Note 7). 2 The amortization of prior service credits associated with postretirement benefits are included in Other income (expense) in the consolidated statements of income (see Note 6). 3 With the adoption of ASU 2016-01, the unrealized (gains) losses on our equity investments are reclassified to retained earnings.

Segment Information (Tables)

Segment Information (Tables)	6 Months Ended
	Jun. 30, 2019
Segment Information
Reconciliation of Revenue from Segments to Consolidated [Table Text Block]	For the three months ended June 30, 2019 Revenues Operations and Support Expenses EBITDA Depreciation and Amortization Operating Income (Loss) Equity in Net Income (Loss) of Affiliates Segment Contribution Communications Mobility $ 17,512 $ 9,654 $ 7,858 $ 2,025 $ 5,833 $ - $ 5,833 Entertainment Group 11,368 8,515 2,853 1,339 1,514 - 1,514 Business Wireline 6,628 3,982 2,646 1,256 1,390 - 1,390 Total Communications 35,508 22,151 13,357 4,620 8,737 - 8,737 WarnerMedia Turner 3,410 2,217 1,193 39 1,154 11 1,165 Home Box Office 1,716 1,131 585 12 573 15 588 Warner Bros. 3,389 2,918 471 31 440 - 440 Other ( 165) 23 ( 188) 9 ( 197) 29 ( 168) Total WarnerMedia 8,350 6,289 2,061 91 1,970 55 2,025 Latin America Vrio 1,032 881 151 165 ( 14) 12 ( 2) Mexico 725 813 ( 88) 119 ( 207) - ( 207) Total Latin America 1,757 1,694 63 284 ( 221) 12 ( 209) Xandr 485 147 338 13 325 - 325 Segment Total 46,100 30,281 15,819 5,008 10,811 $ 67 $ 10,878 Corporate and Other Corporate 209 626 ( 417) 134 ( 551) Acquisition-related items ( 30) 316 ( 346) 1,960 ( 2,306) Certain significant items - 94 ( 94) - ( 94) Eliminations and consolidations ( 1,322) ( 961) ( 361) ( 1) ( 360) AT&T Inc. $ 44,957 $ 30,356 $ 14,601 $ 7,101 $ 7,500 For the three months ended June 30, 2018 Revenues Operations and Support Expenses EBITDA Depreciation and Amortization Operating Income (Loss) Equity in Net Income (Loss) of Affiliates Segment Contribution Communications Mobility $ 17,282 $ 9,663 $ 7,619 $ 2,113 $ 5,506 $ - $ 5,506 Entertainment Group 11,478 8,657 2,821 1,345 1,476 ( 1) 1,475 Business Wireline 6,650 4,038 2,612 1,180 1,432 1 1,433 Total Communications 35,410 22,358 13,052 4,638 8,414 - 8,414 WarnerMedia Turner 667 372 295 11 284 5 289 Home Box Office 281 171 110 5 105 ( 1) 104 Warner Bros. 507 403 104 14 90 ( 1) 89 Other ( 62) ( 35) ( 27) 1 ( 28) ( 29) ( 57) Total WarnerMedia 1,393 911 482 31 451 ( 26) 425 Latin America Vrio 1,254 1,016 238 186 52 15 67 Mexico 697 787 ( 90) 127 ( 217) - ( 217) Total Latin America 1,951 1,803 148 313 ( 165) 15 ( 150) Xandr 392 59 333 - 333 - 333 Segment Total 39,146 25,131 14,015 4,982 9,033 $ ( 11) $ 9,022 Corporate and Other Corporate 320 661 ( 341) 118 ( 459) Acquisition-related items - 321 ( 321) 1,278 ( 1,599) Certain significant items - 152 ( 152) - ( 152) Eliminations and consolidations ( 480) ( 123) ( 357) - ( 357) AT&T Inc. $ 38,986 $ 26,142 $ 12,844 $ 6,378 $ 6,466 For the six months ended June 30, 2019 Revenues Operations and Support Expenses EBITDA Depreciation and Amortization Operating Income (Loss) Equity in Net Income (Loss) of Affiliates Segment Contribution Communications Mobility $ 35,079 $ 19,835 $ 15,244 $ 4,060 $ 11,184 $ - $ 11,184 Entertainment Group 22,696 17,042 5,654 2,662 2,992 - 2,992 Business Wireline 13,126 8,022 5,104 2,491 2,613 - 2,613 Total Communications 70,901 44,899 26,002 9,213 16,789 - 16,789 WarnerMedia Turner 6,853 4,353 2,500 99 2,401 36 2,437 Home Box Office 3,226 2,052 1,174 34 1,140 30 1,170 Warner Bros. 6,907 5,837 1,070 83 987 6 993 Other ( 257) 40 ( 297) 18 ( 315) 50 ( 265) Total WarnerMedia 16,729 12,282 4,447 234 4,213 122 4,335 Latin America Vrio 2,099 1,747 352 334 18 12 30 Mexico 1,376 1,538 ( 162) 250 ( 412) - ( 412) Total Latin America 3,475 3,285 190 584 ( 394) 12 ( 382) Xandr 911 307 604 26 578 - 578 Segment Total 92,016 60,773 31,243 10,057 21,186 $ 134 $ 21,320 Corporate and Other Corporate 418 1,139 ( 721) 303 ( 1,024) Acquisition-related items ( 72) 389 ( 461) 3,948 ( 4,409) Certain significant items - 342 ( 342) - ( 342) Eliminations and consolidations ( 2,578) ( 1,899) ( 679) ( 1) ( 678) AT&T Inc. $ 89,784 $ 60,744 $ 29,040 $ 14,307 $ 14,733 For the six months ended June 30, 2018 Revenues Operations and Support Expenses EBITDA Depreciation and Amortization Operating Income (Loss) Equity in Net Income (Loss) of Affiliates Segment Contribution Communications Mobility $ 34,637 $ 19,765 $ 14,872 $ 4,208 $ 10,664 $ - $ 10,664 Entertainment Group 22,909 17,468 5,441 2,655 2,786 ( 2) 2,784 Business Wireline 13,397 8,054 5,343 2,350 2,993 - 2,993 Total Communications 70,943 45,287 25,656 9,213 16,443 ( 2) 16,441 WarnerMedia Turner 779 446 333 12 321 32 353 Home Box Office 281 171 110 5 105 ( 1) 104 Warner Bros. 507 403 104 14 90 ( 1) 89 Other ( 62) ( 27) ( 35) 1 ( 36) ( 46) ( 82) Total WarnerMedia 1,505 993 512 32 480 ( 16) 464 Latin America Vrio 2,608 2,017 591 391 200 15 215 Mexico 1,368 1,590 ( 222) 254 ( 476) - ( 476) Total Latin America 3,976 3,607 369 645 ( 276) 15 ( 261) Xandr 729 109 620 1 619 - 619 Segment Total 77,153 49,996 27,157 9,891 17,266 $ ( 3) $ 17,263 Corporate and Other Corporate 653 1,396 ( 743) 141 ( 884) Acquisition-related items - 388 ( 388) 2,340 ( 2,728) Certain significant items - 332 ( 332) - ( 332) Eliminations and consolidations ( 782) ( 127) ( 655) - ( 655) AT&T Inc. $ 77,024 $ 51,985 $ 25,039 $ 12,372 $ 12,667
Reconciliation of Operating Income (Loss) from Segments to Consolidated Statements of Income [Table Text Block]	Three months ended June 30, Six months ended June 30, 2019 2018 2019 2018 Communications $ 8,737 $ 8,414 $ 16,789 $ 16,441 WarnerMedia 2,025 425 4,335 464 Latin America ( 209) ( 150) ( 382) ( 261) Xandr 325 333 578 619 Segment Contribution 10,878 9,022 21,320 17,263 Reconciling Items: Corporate and Other ( 551) ( 459) ( 1,024) ( 884) Merger and integration items ( 346) ( 340) ( 461) ( 432) Amortization of intangibles acquired ( 1,960) ( 1,278) ( 3,948) ( 2,340) Employee separation charges ( 94) ( 133) ( 342) ( 184) Natural disaster items - - - ( 104) Segment equity in net income of affiliates ( 67) 11 ( 134) 3 Eliminations and consolidations ( 360) ( 357) ( 678) ( 655) AT&T Operating Income 7,500 6,466 14,733 12,667 Interest Expense ( 2,149) ( 2,023) ( 4,290) ( 3,794) Equity in net income (loss) of affiliates 40 ( 16) 33 ( 7) Other income (expense) - net ( 318) 2,353 ( 32) 4,055 Income Before Income Taxes $ 5,073 $ 6,780 $ 10,444 $ 12,921
Schedule of Segment Reporting Information, by Segment [Table Text Block]	Intersegment Reconciliation Three months ended June 30, Six months ended June 30, 2019 2018 2019 2018 Intersegment revenues Communications $ 8 $ 2 $ 8 $ 2 WarnerMedia 861 174 1,719 209 Latin America - - - - Xandr - - - - Total Intersegment Revenues 869 176 1,727 211 Consolidations 453 304 851 571 Eliminations and consolidations $ 1,322 $ 480 $ 2,578 $ 782

Revenue Recognition (Tables)

Revenue Recognition (Tables)	6 Months Ended
	Jun. 30, 2019
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue [Table Text Block]	Revenue Categories The following tables set forth reported revenue by category and by business unit: For the three months ended June 30, 2019 Service Revenues Wireless Advanced Data Legacy Voice & Data Subscription Content Advertising Other Equipment Total Communications Mobility $ 13,935 $ - $ - $ - $ - $ 71 $ - $ 3,506 $ 17,512 Entertainment Group - 2,109 658 7,636 - 399 562 4 11,368 Business Wireline - 3,221 2,331 - - - 898 178 6,628 WarnerMedia Turner - - - 1,943 111 1,266 90 - 3,410 Home Box Office - - - 1,516 198 - 2 - 1,716 Warner Bros. - - - 23 3,175 10 181 - 3,389 Eliminations and Other - - - 54 ( 237) 9 9 - ( 165) Latin America Vrio - - - 1,032 - - - - 1,032 Mexico 479 - - - - - - 246 725 Xandr - - - - - 485 - - 485 Corporate and Other ( 32) - - - - - 211 - 179 Eliminations and consolidations - - - - ( 840) ( 399) ( 83) - ( 1,322) Total Operating Revenues $ 14,382 $ 5,330 $ 2,989 $ 12,204 $ 2,407 $ 1,841 $ 1,870 $ 3,934 $ 44,957 For the three months ended June 30, 2018 Service Revenues Wireless Advanced Data Legacy Voice & Data Subscription Content Advertising Other Equipment Total Communications Mobility $ 13,638 $ - $ - $ - $ - $ 44 $ - $ 3,600 $ 17,282 Entertainment Group - 1,981 772 7,786 - 387 551 1 11,478 Business Wireline - 3,031 2,730 - - - 690 199 6,650 WarnerMedia Turner - - - 410 21 223 13 - 667 Home Box Office - - - 270 11 - - - 281 Warner Bros. - - - 7 455 8 37 - 507 Eliminations and Other - - - - ( 56) ( 6) - - ( 62) Latin America Vrio - - - 1,254 - - - - 1,254 Mexico 417 - - - - - - 280 697 Xandr - - - - - 392 - - 392 Corporate and Other - - - - - - 320 - 320 Eliminations and consolidations - - - - ( 174) ( 387) 81 - ( 480) Total Operating Revenues $ 14,055 $ 5,012 $ 3,502 $ 9,727 $ 257 $ 661 $ 1,692 $ 4,080 $ 38,986 For the six months ended June 30, 2019 Service Revenues Wireless Advanced Data Legacy Voice & Data Subscription Content Advertising Other Equipment Total Communications Mobility $ 27,660 $ - $ - $ - $ - $ 138 $ - $ 7,281 $ 35,079 Entertainment Group - 4,179 1,341 15,360 - 749 1,063 4 22,696 Business Wireline - 6,407 4,735 - - - 1,647 337 13,126 WarnerMedia Turner - - - 3,908 246 2,527 172 - 6,853 Home Box Office - - - 2,850 371 - 5 - 3,226 Warner Bros. - - - 44 6,507 20 336 - 6,907 Eliminations and Other - - - 103 ( 389) 17 12 - ( 257) Latin America Vrio - - - 2,099 - - - - 2,099 Mexico 921 - - - - - - 455 1,376 Xandr - - - - - 911 - - 911 Corporate and Other ( 32) - - - - - 378 - 346 Eliminations and consolidations - - - - ( 1,677) ( 749) ( 152) - ( 2,578) Total Operating Revenues $ 28,549 $ 10,586 $ 6,076 $ 24,364 $ 5,058 $ 3,613 $ 3,461 $ 8,077 $ 89,784 For the six months ended June 30, 2018 Service Revenues Wireless Advanced Data Legacy Voice & Data Subscription Content Advertising Other Equipment Total Communications Mobility $ 27,000 $ - $ - $ - $ - $ 85 $ - $ 7,552 $ 34,637 Entertainment Group - 3,859 1,578 15,677 - 721 1,070 4 22,909 Business Wireline - 6,074 5,595 - - - 1,359 369 13,397 WarnerMedia Turner - - - 508 21 237 13 - 779 Home Box Office - - - 270 11 - - - 281 Warner Bros. - - - 7 455 8 37 - 507 Eliminations and Other - - - - ( 56) ( 6) - - ( 62) Latin America Vrio - - - 2,608 - - - - 2,608 Mexico 821 - - - - - - 547 1,368 Xandr - - - - - 729 - - 729 Corporate and Other - - - - - - 653 - 653 Eliminations and consolidations - - - - ( 209) ( 721) 148 - ( 782) Total Operating Revenues $ 27,821 $ 9,933 $ 7,173 $ 19,070 $ 222 $ 1,053 $ 3,280 $ 8,472 $ 77,024
Capitalized Contract Cost [Table Text Block]	June 30, December 31, Consolidated Balance Sheets 2019 2018 Deferred Acquisition Costs Other current assets $ 1,952 $ 1,901 Other Assets 2,760 2,073 Total deferred customer contract acquisition costs 4,712 3,974 Deferred Fulfillment Costs Other current assets 4,620 4,090 Other Assets 6,796 7,450 Total deferred customer contract fulfillment costs $ 11,416 $ 11,540 June 30, June 30, Consolidated Statements of Income 2019 2018 Deferred acquisition cost amortization $ 1,026 $ 595 Deferred fulfillment cost amortization 2,381 1,889
Contract with Customer, Asset and Liability [Table Text Block]	June 30, December 31, Consolidated Balance Sheets 2019 2018 Contract asset $ 2,188 $ 1,896 Contract liability 6,653 6,856

Pension And Postretirement Be_3

Pension And Postretirement Benefits (Tables)	6 Months Ended
	Jun. 30, 2019
Pension And Postretirement Benefits
Pension and postretirement benefit costs included in operating expenses [Table Text Block]	Three months ended Six months ended June 30, June 30, 2019 2018 2019 2018 Pension cost: Service cost – benefits earned during the period $ 243 $ 284 $ 483 $ 575 Interest cost on projected benefit obligation 508 504 1,057 991 Expected return on assets ( 880) ( 755) ( 1,731) ( 1,515) Amortization of prior service credit ( 24) ( 29) ( 57) ( 59) Actuarial (gain) loss 1,699 ( 1,796) 2,131 ( 1,796) Net pension (credit) cost $ 1,546 $ ( 1,792) $ 1,883 $ ( 1,804) Postretirement cost: Service cost – benefits earned during the period $ 18 $ 26 $ 36 $ 55 Interest cost on accumulated postretirement benefit obligation 186 195 372 386 Expected return on assets ( 56) ( 75) ( 112) ( 152) Amortization of prior service credit ( 426) ( 413) ( 852) ( 810) Actuarial (gain) loss - - - ( 930) Net postretirement (credit) cost $ ( 278) $ ( 267) $ ( 556) $ ( 1,451) Combined net pension and postretirement (credit) cost $ 1,268 $ ( 2,059) $ 1,327 $ ( 3,255)

Fair Value Measurements And D_3

Fair Value Measurements And Disclosure (Tables)	6 Months Ended
	Jun. 30, 2019
Fair Value Disclosures
Long-term debt and other financial instruments [Table Text Block]	June 30, 2019 December 31, 2018 Carrying Fair Carrying Fair Amount Value Amount Value Notes and debentures 1 $ 165,443 $ 181,230 $ 171,529 $ 172,287 Commercial paper 3,164 3,164 3,048 3,048 Bank borrowings 4 4 4 4 Investment securities 2 3,518 3,518 3,409 3,409 1 Includes credit agreement borrowings. 2 Excludes investments accounted for under the equity method.
Fair Value Leveling [Table Text Block]	June 30, 2019 Level 1 Level 2 Level 3 Total Equity Securities Domestic equities $ 1,016 $ - $ - $ 1,016 International equities 235 - - 235 Fixed income equities 209 - - 209 Available-for-Sale Debt Securities - 1,031 - 1,031 Asset Derivatives Interest rate swaps - 26 - 26 Cross-currency swaps - 307 - 307 Foreign exchange contracts - 68 - 68 Liability Derivatives Cross-currency swaps - ( 2,929) - ( 2,929) Interest rate locks - ( 23) - ( 23) Foreign exchange contracts - ( 3) - ( 3) December 31, 2018 Level 1 Level 2 Level 3 Total Equity Securities Domestic equities $ 1,061 $ - $ - $ 1,061 International equities 256 - - 256 Fixed income equities 172 - - 172 Available-for-Sale Debt Securities - 870 - 870 Asset Derivatives Cross-currency swaps - 472 - 472 Foreign exchange contracts - 87 - 87 Liability Derivatives Interest rate swaps - ( 39) - ( 39) Cross-currency swaps - ( 2,563) - ( 2,563) Foreign exchange contracts - ( 2) - ( 2)
Unrealized Gain (Loss) on Investments [Table Text Block]	Three months ended Six months ended June 30, June 30, 2019 2018 2019 2018 Total gains (losses) recognized on equity securities $ 50 $ 21 $ 210 $ 8 Gains (Losses) recognized on equity securities sold 69 ( 3) 155 49 Unrealized gains (losses) recognized on equity securities held at end of period ( 19) 24 55 ( 41)
Notional Amount of Outstanding Derivative Positions [Table Text Block]	June 30, December 31, 2019 2018 Interest rate swaps 1 $ 1,633 $ 3,483 Cross-currency swaps 40,311 42,192 Interest rate locks 2,000 - Foreign exchange contracts 669 2,094 Total $ 44,613 $ 47,769 1 In July 2019 we settled interest rate swaps with a notional value of $ 780.
Effect on Derivatives on the Consolidated Statements of Income [Table Text Block]	Effect of Derivatives on the Consolidated Statements of Income Three months ended Six months ended June 30, June 30, Fair Value Hedging Relationships 2019 2018 2019 2018 Interest rate swaps (Interest expense): Gain (Loss) on interest rate swaps $ 35 $ ( 9) $ 59 $ ( 62) Gain (Loss) on long-term debt ( 35) 9 ( 59) 62 Three months ended Six months ended June 30, June 30, Cash Flow Hedging Relationships 2019 2018 2019 2018 Cross-currency swaps: Gain (Loss) recognized in accumulated OCI $ ( 763) $ ( 533) $ ( 595) $ 321 Foreign exchange contracts: Gain (Loss) recognized in accumulated OCI 4 - ( 3) - Other income (expense) - net reclassified from accumulated OCI into income 7 - 10 - Interest rate locks: Gain (Loss) recognized in accumulated OCI ( 23) - ( 23) - Interest income (expense) reclassified from accumulated OCI into income ( 16) ( 14) ( 32) ( 29)

Acquisitions, Dispositions An_2

Acquisitions, Dispositions And Other Adjustments (Tables)	6 Months Ended
	Jun. 30, 2019
Acquisitions, Dispositions And Other Adjustments
Schedule of Business Acquisitions, by Acquisition [Table Text Block]	Assets acquired Cash $ 1,889 Accounts receivable 9,020 All other current assets 2,913 Noncurrent inventory and theatrical film and television production costs 5,591 Property, plant and equipment 4,693 Intangible assets subject to amortization Distribution network 18,040 Released television and film content 10,806 Trademarks and trade names 18,081 Other 10,300 Investments and other assets 9,438 Goodwill 38,801 Total assets acquired 129,572 Liabilities assumed Current liabilities, excluding current portion of long-term debt 8,294 Debt maturing within one year 4,471 Long-term debt 18,394 Other noncurrent liabilities 19,054 Total liabilities assumed 50,213 Net assets acquired 79,359 Noncontrolling interest ( 1) Aggregate value of consideration paid $ 79,358

Sale of Equipment Installment_2

Sale of Equipment Installment Receivables (Tables)	6 Months Ended
	Jun. 30, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance Receivables [Table Text Block]	June 30, 2019 December 31, 2018 Equipment Equipment Installment WarnerMedia Installment WarnerMedia Gross receivables: $ 4,519 $ 2,769 $ 5,994 $ - Balance sheet classification Accounts receivable Notes receivable 2,599 - 3,457 - Trade receivables 449 2,286 438 - Other Assets Noncurrent notes and trade receivables 1,471 483 2,099 - Outstanding portfolio of receivables derecognized from our consolidated balance sheets 9,528 3,725 9,065 - Cash proceeds received, net of remittances 1 7,073 3,725 6,508 - 1 Represents amounts to which financial institutions remain entitled, excluding the deferred purchase price. Three months ended Six months ended June 30, June 30, 2019 2018 2019 2018 Gross receivables sold $ 2,244 $ 1,906 $ 4,945 $ 4,916 Net receivables sold 1 2,133 1,811 4,679 4,606 Cash proceeds received 1,920 1,532 4,195 3,927 Deferred purchase price recorded 261 307 570 826 Guarantee obligation recorded 93 72 194 195 1 Receivables net of allowance, imputed interest and equipment trade-in right guarantees.
Deferred Purchase Price [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance Receivables [Table Text Block]	Three months ended Six months ended June 30, June 30, 2019 2018 2019 2018 Fair value of repurchased receivables $ 235 $ 1,481 $ 658 $ 1,481 Carrying value of deferred purchase price 225 1,393 632 1,393 Gain (loss) on repurchases 1 $ 10 $ 88 $ 26 $ 88 1 These gains (losses) are included in “Selling, general and administrative” in the consolidated statements of income.

Leases (Tables)

Leases (Tables)	6 Months Ended
	Jun. 30, 2019
Leases [Abstract]
Lease, Cost [Table Text Block]	Three months ended Six months ended June 30, 2019 June 30, 2019 Operating lease cost $ 1,610 $ 2,852 Finance lease cost: Amortization of right-of-use assets $ 70 $ 136 Interest on lease obligation 42 84 Total finance lease cost $ 112 $ 220 At June 30, 2019 Operating Leases Operating lease right-of-use assets $ 22,650 Accounts payable and accrued liabilities $ 3,344 Operating lease obligation 20,568 Total operating lease obligation $ 23,912 Finance Leases Property, plant and equipment, at cost $ 3,362 Accumulated depreciation and amortization ( 1,178) Property, plant and equipment, net $ 2,184 Current portion of long-term debt $ 137 Long-term debt 1,809 Total finance lease obligation $ 1,946 Weighted-Average Remaining Lease Term Operating leases 8.4 yrs Finance leases 10.7 yrs Weighted-Average Discount Rate Operating leases 4.7 % Finance leases 8.5 %
Schedule Of Maturities Of Operating And Finance Leases Liabilities [Table Text Block]	At June 30, 2019 Operating Finance Leases Leases Remainder of 2019 $ 2,250 $ 169 2020 4,276 296 2021 3,841 274 2022 3,561 264 2023 3,228 253 Thereafter 12,502 1,814 Total lease payments 29,658 3,070 Less imputed interest ( 5,746) ( 1,124) Total $ 23,912 $ 1,946

Additional Financial Informat_2

Additional Financial Information (Tables)	6 Months Ended
	Jun. 30, 2019
Additional Financial Information [Abstract]
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]	June 30, December 31, 2019 2018 2018 2017 Cash and cash equivalents $ 8,423 $ 13,523 $ 5,204 $ 50,498 Restricted cash in Other current assets 15 12 61 6 Restricted cash in Other Assets 216 218 135 428 Cash and cash equivalents and restricted cash $ 8,654 $ 13,753 $ 5,400 $ 50,932 Six months ended June 30, 2019 2018 Cash Flows from Operating Activities Cash paid for amounts included in lease obligations Operating cash flows from operating leases $ 2,464 $ 2,458 Supplemental Lease Cash Flow Disclosures Operating lease right-of-use assets obtained in exchange for new operating lease obligations 3,899 - Six months ended June 30, 2019 2018 Interest $ 4,410 $ 4,045 Income taxes, net of refunds ( 32) ( 757)

Preparation Of Interim Financ_3

Preparation Of Interim Financial Statements (Narrative) (Details) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2019	Dec. 31, 2018	Jan. 01, 2019
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Operating lease liability	$ 23,912
Operating Lease, Right-of-Use Asset	22,650	$ 0
Retained earnings	59,389	58,753
Other current assets	$ 14,973	$ 17,704
Mexico [Member] | Spectrum Licenses [Member]
Change in Accounting Estimate [Line Items]
Estimated economic useful life	25 years
Time Warner Inc. [Member]
Acquisition and Dispositions [Line Items]
Acquisition of business - acquisition period		Jun. 14, 2018
ASU 2016-02 [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Operating lease liability			$ 22,121
Operating Lease, Right-of-Use Asset			22,121
Net Assets			20,960
Retained earnings			316
Transition Option Elected [Prospective/Retrospective/Modified Prospective/Modified Retrospective]	Modified Retrospective
ASU Adoption Date [CCYY-MM-DD format]	Jan. 1, 2019
ASU Early Adoption [true/false]	false
Prior Period Not Restated [true/false]	true
Significant effect on the financial statements [Yes/No]	No
ASU 2019-02 [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Transition Option Elected [Prospective/Retrospective/Modified Prospective/Modified Retrospective]	Prospective
ASU Adoption Date [CCYY-MM-DD format]	Jan. 1, 2019
ASU Early Adoption [true/false]	true
Prior Period Not Restated [true/false]	true
Significant effect on the financial statements [Yes/No]	No
ASU 2019-02 [Member] | Programming Inventory Costs [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Other current assets			(2,274)
Other Assets			$ 2,274

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Earnings Per Share
Net income	$ 3,974	$ 5,248	$ 8,322	$ 10,007
Less: Net income attributable to noncontrolling interest	(261)	(116)	(513)	(213)
Net Income attributable to AT&T	3,713	5,132	7,809	9,794
Share-based payment	4	4	10	9
Numerator for diluted earnings per share	$ 3,717	$ 5,136	$ 7,819	$ 9,803
Weighted average number of common shares outstanding	7,323	6,351	7,318	6,257
Share-based payment (in shares)	30	23	29	20
Denominator for diluted earnings per share	7,353	6,374	7,347	6,277
Basic Earnings Per Share Attributable to AT&T	$ 0.51	$ 0.81	$ 1.06	$ 1.56
Diluted Earnings Per Share Attributable to AT&T	$ 0.51	$ 0.81	$ 1.06	$ 1.56

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Apr. 01, 2019	Jan. 01, 2019	Apr. 01, 2018	Jan. 01, 2018
Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Accumulated other comprehensive income, beginning balance				$ 4,249	$ 7,017
Other comprehensive income (loss) before reclassification, net of tax				(289)	(9)
Amounts reclassifed from accumulated OCI, net of tax				(671)	(634)
Net other comprehensive income (loss), net of tax		$ (1,056)	$ (1,667)	(960)	(643)
Amounts reclassified to retained earnings						$ 0	$ 0	$ (3)	$ (658)
Accumulated other comprehensive income, ending balance		3,289	5,716	3,289	5,716
Foreign Currency Translation Adjustment [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Accumulated other comprehensive income, beginning balance				(3,084)	(2,054)
Other comprehensive income (loss) before reclassification, net of tax				159	(780)
Amounts reclassifed from accumulated OCI, net of tax				0	0
Net other comprehensive income (loss), net of tax				159	(780)
Amounts reclassified to retained earnings									0
Accumulated other comprehensive income, ending balance		(2,925)	(2,834)	(2,925)	(2,834)
Net Unrealized Gains (Losses) on Securities [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Accumulated other comprehensive income, beginning balance				(2)	660
Other comprehensive income (loss) before reclassification, net of tax				42	(12)
Amounts reclassifed from accumulated OCI, net of tax				0	0
Net other comprehensive income (loss), net of tax				42	(12)
Accumulated other comprehensive income, ending balance		40	(10)	40	(10)
Net Unrealized Gains (Losses) on Derivative Instruments [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Accumulated other comprehensive income, beginning balance				818	1,402
Other comprehensive income (loss) before reclassification, net of tax				(490)	253
Amounts reclassifed from accumulated OCI, net of tax	[1]			17	23
Net other comprehensive income (loss), net of tax				(473)	276
Amounts reclassified to retained earnings									0
Accumulated other comprehensive income, ending balance		345	1,678	345	1,678
Defined Benefit Postretirement Plans [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Accumulated other comprehensive income, beginning balance				6,517	7,009
Other comprehensive income (loss) before reclassification, net of tax				0	530
Amounts reclassifed from accumulated OCI, net of tax	[2]			(688)	(657)
Net other comprehensive income (loss), net of tax				(688)	(127)
Amounts reclassified to retained earnings									$ 0
Accumulated other comprehensive income, ending balance		$ 5,829	$ 6,882	$ 5,829	$ 6,882
[1]	(Gains) losses are included in Interest expense in the consolidated statements of income (see Note 7).
[2]	The amortization of prior service credits associated with postretirement benefits are included in Other income (expense) in the consolidated statements of income (see Note 6).

Segment Information (Summary Of

Segment Information (Summary Of Operating Revenues And Expenses) (Narrative) (Details) $ in Millions	3 Months Ended	6 Months Ended		12 Months Ended
	Jun. 30, 2019USD ($)	Jun. 30, 2019USD ($)	Jun. 30, 2018USD ($)	Dec. 31, 2018
Segment Reporting Information [Line Items]
Number of Reportable Segments		4
Amortization of production costs		$ 5,199	$ 168
Time Warner Inc. [Member]
Segment Reporting Information [Line Items]
Business Acquisition, Effective Date of Acquisition				Jun. 14, 2018
Xandr [Member]
Segment Reporting Information [Line Items]
Business Acquisition, Effective Date of Acquisition				Aug. 1, 2018
Corporate and Other [Member] | Time Warner Inc. [Member] | Pre-Acquisition Released Programming Costs Member [Member]
Segment Reporting Information [Line Items]
Amortization of production costs	$ 112	$ 262

Segment Information (Summary _2

Segment Information (Summary Of Operating Revenues And Expenses) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Segment Reporting Information [Line Items]
Revenue	$ 44,957	$ 38,986	$ 89,784	$ 77,024
Operations and Support Expenses	30,356	26,142	60,744	51,985
EBITDA	14,601	12,844	29,040	25,039
Depreciation and Amortization	7,101	6,378	14,307	12,372
Operating Income (Loss)	7,500	6,466	14,733	12,667
Equity in Net Income (Loss) of Affiliates	40	(16)	33	(7)
Segment Contribution	5,073	6,780	10,444	12,921
Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue	46,100	39,146	92,016	77,153
Operations and Support Expenses	30,281	25,131	60,773	49,996
EBITDA	15,819	14,015	31,243	27,157
Depreciation and Amortization	5,008	4,982	10,057	9,891
Operating Income (Loss)	10,811	9,033	21,186	17,266
Equity in Net Income (Loss) of Affiliates	67	(11)	134	(3)
Segment Contribution	10,878	9,022	21,320	17,263
Consolidations [Member]
Segment Reporting Information [Line Items]
Revenue	209	320	418	653
Operations and Support Expenses	626	661	1,139	1,396
EBITDA	(417)	(341)	(721)	(743)
Depreciation and Amortization	134	118	303	141
Operating Income (Loss)	(551)	(459)	(1,024)	(884)
Consolidations [Member] | Acquisition-related items [Member]
Segment Reporting Information [Line Items]
Revenue	(30)	0	(72)	0
Operations and Support Expenses	316	321	389	388
EBITDA	(346)	(321)	(461)	(388)
Depreciation and Amortization	1,960	1,278	3,948	2,340
Operating Income (Loss)	(2,306)	(1,599)	(4,409)	(2,728)
Eliminations and consolidations [Member]
Segment Reporting Information [Line Items]
Revenue	(1,322)	(480)	(2,578)	(782)
Operations and Support Expenses	(961)	(123)	(1,899)	(127)
EBITDA	(361)	(357)	(679)	(655)
Depreciation and Amortization	(1)	0	(1)	0
Operating Income (Loss)	(360)	(357)	(678)	(655)
Certain Significant Items [Member]
Segment Reporting Information [Line Items]
Revenue	0	0	0	0
Operations and Support Expenses	94	152	342	332
EBITDA	(94)	(152)	(342)	(332)
Depreciation and Amortization	0	0	0	0
Operating Income (Loss)	(94)	(152)	(342)	(332)
Communications [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue	35,508	35,410	70,901	70,943
Operations and Support Expenses	22,151	22,358	44,899	45,287
EBITDA	13,357	13,052	26,002	25,656
Depreciation and Amortization	4,620	4,638	9,213	9,213
Operating Income (Loss)	8,737	8,414	16,789	16,443
Equity in Net Income (Loss) of Affiliates	0	0	0	(2)
Segment Contribution	8,737	8,414	16,789	16,441
Communications [Member] | Mobility [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue	17,512	17,282	35,079	34,637
Operations and Support Expenses	9,654	9,663	19,835	19,765
EBITDA	7,858	7,619	15,244	14,872
Depreciation and Amortization	2,025	2,113	4,060	4,208
Operating Income (Loss)	5,833	5,506	11,184	10,664
Equity in Net Income (Loss) of Affiliates	0	0	0	0
Segment Contribution	5,833	5,506	11,184	10,664
Communications [Member] | Entertainment Group [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue	11,368	11,478	22,696	22,909
Operations and Support Expenses	8,515	8,657	17,042	17,468
EBITDA	2,853	2,821	5,654	5,441
Depreciation and Amortization	1,339	1,345	2,662	2,655
Operating Income (Loss)	1,514	1,476	2,992	2,786
Equity in Net Income (Loss) of Affiliates	0	(1)	0	(2)
Segment Contribution	1,514	1,475	2,992	2,784
Communications [Member] | Business Wireline [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue	6,628	6,650	13,126	13,397
Operations and Support Expenses	3,982	4,038	8,022	8,054
EBITDA	2,646	2,612	5,104	5,343
Depreciation and Amortization	1,256	1,180	2,491	2,350
Operating Income (Loss)	1,390	1,432	2,613	2,993
Equity in Net Income (Loss) of Affiliates	0	1	0	0
Segment Contribution	1,390	1,433	2,613	2,993
WarnerMedia [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue	8,350	1,393	16,729	1,505
Operations and Support Expenses	6,289	911	12,282	993
EBITDA	2,061	482	4,447	512
Depreciation and Amortization	91	31	234	32
Operating Income (Loss)	1,970	451	4,213	480
Equity in Net Income (Loss) of Affiliates	55	(26)	122	(16)
Segment Contribution	2,025	425	4,335	464
WarnerMedia [Member] | Turner [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue	3,410	667	6,853	779
Operations and Support Expenses	2,217	372	4,353	446
EBITDA	1,193	295	2,500	333
Depreciation and Amortization	39	11	99	12
Operating Income (Loss)	1,154	284	2,401	321
Equity in Net Income (Loss) of Affiliates	11	5	36	32
Segment Contribution	1,165	289	2,437	353
WarnerMedia [Member] | Home Box Office [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue	1,716	281	3,226	281
Operations and Support Expenses	1,131	171	2,052	171
EBITDA	585	110	1,174	110
Depreciation and Amortization	12	5	34	5
Operating Income (Loss)	573	105	1,140	105
Equity in Net Income (Loss) of Affiliates	15	(1)	30	(1)
Segment Contribution	588	104	1,170	104
WarnerMedia [Member] | Warner Bros. [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue	3,389	507	6,907	507
Operations and Support Expenses	2,918	403	5,837	403
EBITDA	471	104	1,070	104
Depreciation and Amortization	31	14	83	14
Operating Income (Loss)	440	90	987	90
Equity in Net Income (Loss) of Affiliates	0	(1)	6	(1)
Segment Contribution	440	89	993	89
WarnerMedia [Member] | Other [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue	(165)	(62)	(257)	(62)
Operations and Support Expenses	23	(35)	40	(27)
EBITDA	(188)	(27)	(297)	(35)
Depreciation and Amortization	9	1	18	1
Operating Income (Loss)	(197)	(28)	(315)	(36)
Equity in Net Income (Loss) of Affiliates	29	(29)	50	(46)
Segment Contribution	(168)	(57)	(265)	(82)
Latin America [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue	1,757	1,951	3,475	3,976
Operations and Support Expenses	1,694	1,803	3,285	3,607
EBITDA	63	148	190	369
Depreciation and Amortization	284	313	584	645
Operating Income (Loss)	(221)	(165)	(394)	(276)
Equity in Net Income (Loss) of Affiliates	12	15	12	15
Segment Contribution	(209)	(150)	(382)	(261)
Latin America [Member] | Vrio [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue	1,032	1,254	2,099	2,608
Operations and Support Expenses	881	1,016	1,747	2,017
EBITDA	151	238	352	591
Depreciation and Amortization	165	186	334	391
Operating Income (Loss)	(14)	52	18	200
Equity in Net Income (Loss) of Affiliates	12	15	12	15
Segment Contribution	(2)	67	30	215
Latin America [Member] | Mexico [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue	725	697	1,376	1,368
Operations and Support Expenses	813	787	1,538	1,590
EBITDA	(88)	(90)	(162)	(222)
Depreciation and Amortization	119	127	250	254
Operating Income (Loss)	(207)	(217)	(412)	(476)
Equity in Net Income (Loss) of Affiliates	0	0	0	0
Segment Contribution	(207)	(217)	(412)	(476)
Xandr [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue	485	392	911	729
Operations and Support Expenses	147	59	307	109
EBITDA	338	333	604	620
Depreciation and Amortization	13	0	26	1
Operating Income (Loss)	325	333	578	619
Equity in Net Income (Loss) of Affiliates	0	0	0	0
Segment Contribution	325	333	578	619
Corporate [Member]
Segment Reporting Information [Line Items]
Revenue	$ 179	$ 320	$ 346	$ 653

Segment Information (Reconcilia

Segment Information (Reconciliation Of Operating Income Loss to Consolidated Statement Of Income) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Segment Reporting Reconciling Item For Operating Income (Loss) From Segment To Consolidated Statements Of Income [Line Items]
AT&T Operating Income	$ 7,500	$ 6,466	$ 14,733	$ 12,667
Interest expense	2,149	2,023	4,290	3,794
Equity in net income (loss) of affiliates	40	(16)	33	(7)
Other income (expense) - net	(318)	2,353	(32)	4,055
Income Before Income Taxes	5,073	6,780	10,444	12,921
Operating Segments [Member]
Segment Reporting Reconciling Item For Operating Income (Loss) From Segment To Consolidated Statements Of Income [Line Items]
AT&T Operating Income	10,811	9,033	21,186	17,266
Equity in net income (loss) of affiliates	67	(11)	134	(3)
Income Before Income Taxes	10,878	9,022	21,320	17,263
Operating Segments [Member] | Communications [Member]
Segment Reporting Reconciling Item For Operating Income (Loss) From Segment To Consolidated Statements Of Income [Line Items]
AT&T Operating Income	8,737	8,414	16,789	16,443
Equity in net income (loss) of affiliates	0	0	0	(2)
Income Before Income Taxes	8,737	8,414	16,789	16,441
Operating Segments [Member] | WarnerMedia [Member]
Segment Reporting Reconciling Item For Operating Income (Loss) From Segment To Consolidated Statements Of Income [Line Items]
AT&T Operating Income	1,970	451	4,213	480
Equity in net income (loss) of affiliates	55	(26)	122	(16)
Income Before Income Taxes	2,025	425	4,335	464
Operating Segments [Member] | Latin America [Member]
Segment Reporting Reconciling Item For Operating Income (Loss) From Segment To Consolidated Statements Of Income [Line Items]
AT&T Operating Income	(221)	(165)	(394)	(276)
Equity in net income (loss) of affiliates	12	15	12	15
Income Before Income Taxes	(209)	(150)	(382)	(261)
Operating Segments [Member] | Xandr [Member]
Segment Reporting Reconciling Item For Operating Income (Loss) From Segment To Consolidated Statements Of Income [Line Items]
AT&T Operating Income	325	333	578	619
Equity in net income (loss) of affiliates	0	0	0	0
Income Before Income Taxes	325	333	578	619
Certain Significant Items [Member]
Segment Reporting Reconciling Item For Operating Income (Loss) From Segment To Consolidated Statements Of Income [Line Items]
AT&T Operating Income	(94)	(152)	(342)	(332)
Certain Significant Items [Member] | Merger and intergration items [Member]
Segment Reporting Reconciling Item For Operating Income (Loss) From Segment To Consolidated Statements Of Income [Line Items]
AT&T Operating Income	(346)	(340)	(461)	(432)
Certain Significant Items [Member] | Amortization of intangibles acquired [Member]
Segment Reporting Reconciling Item For Operating Income (Loss) From Segment To Consolidated Statements Of Income [Line Items]
AT&T Operating Income	(1,960)	(1,278)	(3,948)	(2,340)
Certain Significant Items [Member] | Employee separate charges [Member]
Segment Reporting Reconciling Item For Operating Income (Loss) From Segment To Consolidated Statements Of Income [Line Items]
AT&T Operating Income	(94)	(133)	(342)	(184)
Certain Significant Items [Member] | Natural Disaster Charges [Member]
Segment Reporting Reconciling Item For Operating Income (Loss) From Segment To Consolidated Statements Of Income [Line Items]
AT&T Operating Income	0	0	0	(104)
Certain Significant Items [Member] | Segment equity in net (income) loss of affiliates
Segment Reporting Reconciling Item For Operating Income (Loss) From Segment To Consolidated Statements Of Income [Line Items]
AT&T Operating Income	(67)	11	(134)	3
Consolidations [Member]
Segment Reporting Reconciling Item For Operating Income (Loss) From Segment To Consolidated Statements Of Income [Line Items]
AT&T Operating Income	(551)	(459)	(1,024)	(884)
Eliminations and consolidations [Member]
Segment Reporting Reconciling Item For Operating Income (Loss) From Segment To Consolidated Statements Of Income [Line Items]
AT&T Operating Income	$ (360)	$ (357)	$ (678)	$ (655)

Segment Information (Intersegme

Segment Information (Intersegment Details) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Revenues [Abstract]
Total revenues	$ (44,957)	$ (38,986)	$ (89,784)	$ (77,024)
Operating Segments [Member]
Revenues [Abstract]
Total revenues	(46,100)	(39,146)	(92,016)	(77,153)
Total Intersegment Revenues [Member]
Revenues [Abstract]
Total revenues	869	176	1,727	211
Eliminations and consolidations [Member]
Revenues [Abstract]
Total revenues	1,322	480	2,578	782
Communications [Member] | Operating Segments [Member]
Revenues [Abstract]
Total revenues	(35,508)	(35,410)	(70,901)	(70,943)
Communications [Member] | Total Intersegment Revenues [Member]
Revenues [Abstract]
Total revenues	8	2	8	2
WarnerMedia [Member] | Operating Segments [Member]
Revenues [Abstract]
Total revenues	(8,350)	(1,393)	(16,729)	(1,505)
WarnerMedia [Member] | Total Intersegment Revenues [Member]
Revenues [Abstract]
Total revenues	861	174	1,719	209
Latin America [Member] | Operating Segments [Member]
Revenues [Abstract]
Total revenues	(1,757)	(1,951)	(3,475)	(3,976)
Latin America [Member] | Total Intersegment Revenues [Member]
Revenues [Abstract]
Total revenues	0	0	0	0
Xandr [Member] | Operating Segments [Member]
Revenues [Abstract]
Total revenues	(485)	(392)	(911)	(729)
Xandr [Member] | Total Intersegment Revenues [Member]
Revenues [Abstract]
Total revenues	0	0	0	0
Consolidations [Member]
Revenues [Abstract]
Total revenues	(179)	(320)	(346)	(653)
Consolidations [Member] | Total Intersegment Revenues [Member]
Revenues [Abstract]
Total revenues	$ 453	$ 304	$ 851	$ 571

Revenue Recognition (Narrative)

Revenue Recognition (Narrative) (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Contract with Customer, Asset and Liability [Abstract]
Beginning of period contract liability recorded as customer contract revenue during period	$ 4,974
Contract asset balance - current portion (in millions)	1,463	$ 1,244
Contract liability balance - current portion (in millions)	5,533	$ 5,752
Revenue, Performance Obligation [Abstract]
Aggregate amount of the transaction price allocated to remaining performance obligations (in millions)	$ 40,646
Aggregate amount of the transaction price allocated to remaining performance obligations (percentage)	80.00%
Deferred Customer Contract Acquisition Costs [Member]
Capitalized Contract Cost [Line Items]
Capitalized Contract Cost, Amortization Method	For contracts with an estimated amortization period of less than one year, we expense incremental costs immediately.
Deferred Customer Contract Acquisition Costs [Member] | Minimum [Member]
Capitalized Contract Cost [Line Items]
Capitalized Contract Cost, Amortization Period	3 years
Deferred Customer Contract Acquisition Costs [Member] | Maximum [Member]
Capitalized Contract Cost [Line Items]
Capitalized Contract Cost, Amortization Period	5 years
Deferred Customer Contract Fulfillment Cost [Member]
Capitalized Contract Cost [Line Items]
Capitalized Contract Cost, Amortization Method	For contracts with an estimated amortization period of less than one year, we expense incremental costs immediately.
Deferred Customer Contract Fulfillment Cost [Member] | Minimum [Member]
Capitalized Contract Cost [Line Items]
Capitalized Contract Cost, Amortization Period	3 years
Deferred Customer Contract Fulfillment Cost [Member] | Maximum [Member]
Capitalized Contract Cost [Line Items]
Capitalized Contract Cost, Amortization Period	5 years

Revenue Recognition (Revenue Ca

Revenue Recognition (Revenue Categories) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Disaggregation of Revenue [Line Items]
Total Operating Revenues	$ 44,957	$ 38,986	$ 89,784	$ 77,024
Wireless service
Disaggregation of Revenue [Line Items]
Total Operating Revenues	14,382	14,055	28,549	27,821
Advanced Data
Disaggregation of Revenue [Line Items]
Total Operating Revenues	5,330	5,012	10,586	9,933
Legacy Voice and Data
Disaggregation of Revenue [Line Items]
Total Operating Revenues	2,989	3,502	6,076	7,173
Subscription
Disaggregation of Revenue [Line Items]
Total Operating Revenues	12,204	9,727	24,364	19,070
Content
Disaggregation of Revenue [Line Items]
Total Operating Revenues	2,407	257	5,058	222
Advertising
Disaggregation of Revenue [Line Items]
Total Operating Revenues	1,841	661	3,613	1,053
Other
Disaggregation of Revenue [Line Items]
Total Operating Revenues	1,870	1,692	3,461	3,280
Equipment
Disaggregation of Revenue [Line Items]
Total Operating Revenues	3,934	4,080	8,077	8,472
Corporate and Other [Member]
Disaggregation of Revenue [Line Items]
Total Operating Revenues	179	320	346	653
Corporate and Other [Member] | Wireless service
Disaggregation of Revenue [Line Items]
Total Operating Revenues	(32)	0	(32)	0
Corporate and Other [Member] | Advanced Data
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Corporate and Other [Member] | Legacy Voice and Data
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Corporate and Other [Member] | Subscription
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Corporate and Other [Member] | Content
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Corporate and Other [Member] | Advertising
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Corporate and Other [Member] | Other
Disaggregation of Revenue [Line Items]
Total Operating Revenues	211	320	378	653
Corporate and Other [Member] | Equipment
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member]
Disaggregation of Revenue [Line Items]
Total Operating Revenues	46,100	39,146	92,016	77,153
Operating Segments [Member] | Communications [Member]
Disaggregation of Revenue [Line Items]
Total Operating Revenues	35,508	35,410	70,901	70,943
Operating Segments [Member] | Communications [Member] | Mobility [Member]
Disaggregation of Revenue [Line Items]
Total Operating Revenues	17,512	17,282	35,079	34,637
Operating Segments [Member] | Communications [Member] | Mobility [Member] | Wireless service
Disaggregation of Revenue [Line Items]
Total Operating Revenues	13,935	13,638	27,660	27,000
Operating Segments [Member] | Communications [Member] | Mobility [Member] | Advanced Data
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | Communications [Member] | Mobility [Member] | Legacy Voice and Data
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | Communications [Member] | Mobility [Member] | Subscription
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | Communications [Member] | Mobility [Member] | Content
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | Communications [Member] | Mobility [Member] | Advertising
Disaggregation of Revenue [Line Items]
Total Operating Revenues	71	44	138	85
Operating Segments [Member] | Communications [Member] | Mobility [Member] | Other
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | Communications [Member] | Mobility [Member] | Equipment
Disaggregation of Revenue [Line Items]
Total Operating Revenues	3,506	3,600	7,281	7,552
Operating Segments [Member] | Communications [Member] | Entertainment Group [Member]
Disaggregation of Revenue [Line Items]
Total Operating Revenues	11,368	11,478	22,696	22,909
Operating Segments [Member] | Communications [Member] | Entertainment Group [Member] | Wireless service
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | Communications [Member] | Entertainment Group [Member] | Advanced Data
Disaggregation of Revenue [Line Items]
Total Operating Revenues	2,109	1,981	4,179	3,859
Operating Segments [Member] | Communications [Member] | Entertainment Group [Member] | Legacy Voice and Data
Disaggregation of Revenue [Line Items]
Total Operating Revenues	658	772	1,341	1,578
Operating Segments [Member] | Communications [Member] | Entertainment Group [Member] | Subscription
Disaggregation of Revenue [Line Items]
Total Operating Revenues	7,636	7,786	15,360	15,677
Operating Segments [Member] | Communications [Member] | Entertainment Group [Member] | Content
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | Communications [Member] | Entertainment Group [Member] | Advertising
Disaggregation of Revenue [Line Items]
Total Operating Revenues	399	387	749	721
Operating Segments [Member] | Communications [Member] | Entertainment Group [Member] | Other
Disaggregation of Revenue [Line Items]
Total Operating Revenues	562	551	1,063	1,070
Operating Segments [Member] | Communications [Member] | Entertainment Group [Member] | Equipment
Disaggregation of Revenue [Line Items]
Total Operating Revenues	4	1	4	4
Operating Segments [Member] | Communications [Member] | Business Wireline [Member]
Disaggregation of Revenue [Line Items]
Total Operating Revenues	6,628	6,650	13,126	13,397
Operating Segments [Member] | Communications [Member] | Business Wireline [Member] | Wireless service
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | Communications [Member] | Business Wireline [Member] | Advanced Data
Disaggregation of Revenue [Line Items]
Total Operating Revenues	3,221	3,031	6,407	6,074
Operating Segments [Member] | Communications [Member] | Business Wireline [Member] | Legacy Voice and Data
Disaggregation of Revenue [Line Items]
Total Operating Revenues	2,331	2,730	4,735	5,595
Operating Segments [Member] | Communications [Member] | Business Wireline [Member] | Subscription
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | Communications [Member] | Business Wireline [Member] | Content
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | Communications [Member] | Business Wireline [Member] | Advertising
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | Communications [Member] | Business Wireline [Member] | Other
Disaggregation of Revenue [Line Items]
Total Operating Revenues	898	690	1,647	1,359
Operating Segments [Member] | Communications [Member] | Business Wireline [Member] | Equipment
Disaggregation of Revenue [Line Items]
Total Operating Revenues	178	199	337	369
Operating Segments [Member] | WarnerMedia [Member]
Disaggregation of Revenue [Line Items]
Total Operating Revenues	8,350	1,393	16,729	1,505
Operating Segments [Member] | WarnerMedia [Member] | Turner [Member]
Disaggregation of Revenue [Line Items]
Total Operating Revenues	3,410	667	6,853	779
Operating Segments [Member] | WarnerMedia [Member] | Turner [Member] | Wireless service
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | WarnerMedia [Member] | Turner [Member] | Advanced Data
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | WarnerMedia [Member] | Turner [Member] | Legacy Voice and Data
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | WarnerMedia [Member] | Turner [Member] | Subscription
Disaggregation of Revenue [Line Items]
Total Operating Revenues	1,943	410	3,908	508
Operating Segments [Member] | WarnerMedia [Member] | Turner [Member] | Content
Disaggregation of Revenue [Line Items]
Total Operating Revenues	111	21	246	21
Operating Segments [Member] | WarnerMedia [Member] | Turner [Member] | Advertising
Disaggregation of Revenue [Line Items]
Total Operating Revenues	1,266	223	2,527	237
Operating Segments [Member] | WarnerMedia [Member] | Turner [Member] | Other
Disaggregation of Revenue [Line Items]
Total Operating Revenues	90	13	172	13
Operating Segments [Member] | WarnerMedia [Member] | Turner [Member] | Equipment
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | WarnerMedia [Member] | Home Box Office [Member]
Disaggregation of Revenue [Line Items]
Total Operating Revenues	1,716	281	3,226	281
Operating Segments [Member] | WarnerMedia [Member] | Home Box Office [Member] | Wireless service
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | WarnerMedia [Member] | Home Box Office [Member] | Advanced Data
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | WarnerMedia [Member] | Home Box Office [Member] | Legacy Voice and Data
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | WarnerMedia [Member] | Home Box Office [Member] | Subscription
Disaggregation of Revenue [Line Items]
Total Operating Revenues	1,516	270	2,850	270
Operating Segments [Member] | WarnerMedia [Member] | Home Box Office [Member] | Content
Disaggregation of Revenue [Line Items]
Total Operating Revenues	198	11	371	11
Operating Segments [Member] | WarnerMedia [Member] | Home Box Office [Member] | Advertising
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | WarnerMedia [Member] | Home Box Office [Member] | Other
Disaggregation of Revenue [Line Items]
Total Operating Revenues	2	0	5	0
Operating Segments [Member] | WarnerMedia [Member] | Home Box Office [Member] | Equipment
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | WarnerMedia [Member] | Warner Bros. [Member]
Disaggregation of Revenue [Line Items]
Total Operating Revenues	3,389	507	6,907	507
Operating Segments [Member] | WarnerMedia [Member] | Warner Bros. [Member] | Wireless service
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | WarnerMedia [Member] | Warner Bros. [Member] | Advanced Data
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | WarnerMedia [Member] | Warner Bros. [Member] | Legacy Voice and Data
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | WarnerMedia [Member] | Warner Bros. [Member] | Subscription
Disaggregation of Revenue [Line Items]
Total Operating Revenues	23	7	44	7
Operating Segments [Member] | WarnerMedia [Member] | Warner Bros. [Member] | Content
Disaggregation of Revenue [Line Items]
Total Operating Revenues	3,175	455	6,507	455
Operating Segments [Member] | WarnerMedia [Member] | Warner Bros. [Member] | Advertising
Disaggregation of Revenue [Line Items]
Total Operating Revenues	10	8	20	8
Operating Segments [Member] | WarnerMedia [Member] | Warner Bros. [Member] | Other
Disaggregation of Revenue [Line Items]
Total Operating Revenues	181	37	336	37
Operating Segments [Member] | WarnerMedia [Member] | Warner Bros. [Member] | Equipment
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | WarnerMedia [Member] | Eliminations and other [Member]
Disaggregation of Revenue [Line Items]
Total Operating Revenues	(165)	(62)	(257)	(62)
Operating Segments [Member] | WarnerMedia [Member] | Eliminations and other [Member] | Wireless service
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | WarnerMedia [Member] | Eliminations and other [Member] | Advanced Data
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | WarnerMedia [Member] | Eliminations and other [Member] | Legacy Voice and Data
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | WarnerMedia [Member] | Eliminations and other [Member] | Subscription
Disaggregation of Revenue [Line Items]
Total Operating Revenues	54	0	103	0
Operating Segments [Member] | WarnerMedia [Member] | Eliminations and other [Member] | Content
Disaggregation of Revenue [Line Items]
Total Operating Revenues	(237)	(56)	(389)	(56)
Operating Segments [Member] | WarnerMedia [Member] | Eliminations and other [Member] | Advertising
Disaggregation of Revenue [Line Items]
Total Operating Revenues	9	(6)	17	(6)
Operating Segments [Member] | WarnerMedia [Member] | Eliminations and other [Member] | Other
Disaggregation of Revenue [Line Items]
Total Operating Revenues	9	0	12	0
Operating Segments [Member] | WarnerMedia [Member] | Eliminations and other [Member] | Equipment
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | Latin America [Member]
Disaggregation of Revenue [Line Items]
Total Operating Revenues	1,757	1,951	3,475	3,976
Operating Segments [Member] | Latin America [Member] | Vrio [Member]
Disaggregation of Revenue [Line Items]
Total Operating Revenues	1,032	1,254	2,099	2,608
Operating Segments [Member] | Latin America [Member] | Vrio [Member] | Wireless service
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | Latin America [Member] | Vrio [Member] | Advanced Data
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | Latin America [Member] | Vrio [Member] | Legacy Voice and Data
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | Latin America [Member] | Vrio [Member] | Subscription
Disaggregation of Revenue [Line Items]
Total Operating Revenues	1,032	1,254	2,099	2,608
Operating Segments [Member] | Latin America [Member] | Vrio [Member] | Content
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | Latin America [Member] | Vrio [Member] | Advertising
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | Latin America [Member] | Vrio [Member] | Other
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | Latin America [Member] | Vrio [Member] | Equipment
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | Latin America [Member] | Mexico [Member]
Disaggregation of Revenue [Line Items]
Total Operating Revenues	725	697	1,376	1,368
Operating Segments [Member] | Latin America [Member] | Mexico [Member] | Wireless service
Disaggregation of Revenue [Line Items]
Total Operating Revenues	479	417	921	821
Operating Segments [Member] | Latin America [Member] | Mexico [Member] | Advanced Data
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | Latin America [Member] | Mexico [Member] | Legacy Voice and Data
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | Latin America [Member] | Mexico [Member] | Subscription
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | Latin America [Member] | Mexico [Member] | Content
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | Latin America [Member] | Mexico [Member] | Advertising
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | Latin America [Member] | Mexico [Member] | Other
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | Latin America [Member] | Mexico [Member] | Equipment
Disaggregation of Revenue [Line Items]
Total Operating Revenues	246	280	455	547
Operating Segments [Member] | Xandr [Member]
Disaggregation of Revenue [Line Items]
Total Operating Revenues	485	392	911	729
Operating Segments [Member] | Xandr [Member] | Wireless service
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | Xandr [Member] | Advanced Data
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | Xandr [Member] | Legacy Voice and Data
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | Xandr [Member] | Subscription
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | Xandr [Member] | Content
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | Xandr [Member] | Advertising
Disaggregation of Revenue [Line Items]
Total Operating Revenues	485	392	911	729
Operating Segments [Member] | Xandr [Member] | Other
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Operating Segments [Member] | Xandr [Member] | Equipment
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0	0	0	0
Eliminations and consolidations [Member]
Disaggregation of Revenue [Line Items]
Total Operating Revenues	(1,322)	(480)	(2,578)	(782)
Eliminations and consolidations [Member] | Wireless service
Disaggregation of Revenue [Line Items]
Total Operating Revenues		0	0	0
Eliminations and consolidations [Member] | Advanced Data
Disaggregation of Revenue [Line Items]
Total Operating Revenues		0	0	0
Eliminations and consolidations [Member] | Legacy Voice and Data
Disaggregation of Revenue [Line Items]
Total Operating Revenues		0	0	0
Eliminations and consolidations [Member] | Subscription
Disaggregation of Revenue [Line Items]
Total Operating Revenues		0	0	0
Eliminations and consolidations [Member] | Content
Disaggregation of Revenue [Line Items]
Total Operating Revenues		(174)	(1,677)	(209)
Eliminations and consolidations [Member] | Advertising
Disaggregation of Revenue [Line Items]
Total Operating Revenues		(387)	(749)	(721)
Eliminations and consolidations [Member] | Other
Disaggregation of Revenue [Line Items]
Total Operating Revenues		81	(152)	148
Eliminations and consolidations [Member] | Equipment
Disaggregation of Revenue [Line Items]
Total Operating Revenues		$ 0	$ 0	$ 0
Eliminations and consolidations [Member] | Eliminations and other [Member]
Disaggregation of Revenue [Line Items]
Total Operating Revenues	(1,322)
Eliminations and consolidations [Member] | Eliminations and other [Member] | Wireless service
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0
Eliminations and consolidations [Member] | Eliminations and other [Member] | Advanced Data
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0
Eliminations and consolidations [Member] | Eliminations and other [Member] | Legacy Voice and Data
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0
Eliminations and consolidations [Member] | Eliminations and other [Member] | Subscription
Disaggregation of Revenue [Line Items]
Total Operating Revenues	0
Eliminations and consolidations [Member] | Eliminations and other [Member] | Content
Disaggregation of Revenue [Line Items]
Total Operating Revenues	(840)
Eliminations and consolidations [Member] | Eliminations and other [Member] | Advertising
Disaggregation of Revenue [Line Items]
Total Operating Revenues	(399)
Eliminations and consolidations [Member] | Eliminations and other [Member] | Other
Disaggregation of Revenue [Line Items]
Total Operating Revenues	(83)
Eliminations and consolidations [Member] | Eliminations and other [Member] | Equipment
Disaggregation of Revenue [Line Items]
Total Operating Revenues	$ 0

Revenue Recognition (Deferred C

Revenue Recognition (Deferred Contract Acquisition and Fulfillment Costs) (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Deferred Customer Contract Acquisition Costs [Member]
Capitalized Contract Cost, Net [Abstract]
Capitalized Contract Cost, Net (in millions)	$ 4,712		$ 3,974
Capitalized Contract Cost, Amortization (in millions)	1,026	$ 595
Deferred Customer Contract Acquisition Costs [Member] | Other Current Assets [Member]
Capitalized Contract Cost, Net [Abstract]
Capitalized Contract Cost, Net (in millions)	1,952		1,901
Deferred Customer Contract Acquisition Costs [Member] | Other Assets [Member]
Capitalized Contract Cost, Net [Abstract]
Capitalized Contract Cost, Net (in millions)	2,760		2,073
Deferred Customer Contract Fulfillment Cost [Member]
Capitalized Contract Cost, Net [Abstract]
Capitalized Contract Cost, Net (in millions)	11,416		11,540
Capitalized Contract Cost, Amortization (in millions)	2,381	$ 1,889
Deferred Customer Contract Fulfillment Cost [Member] | Other Current Assets [Member]
Capitalized Contract Cost, Net [Abstract]
Capitalized Contract Cost, Net (in millions)	4,620		4,090
Deferred Customer Contract Fulfillment Cost [Member] | Other Assets [Member]
Capitalized Contract Cost, Net [Abstract]
Capitalized Contract Cost, Net (in millions)	$ 6,796		$ 7,450

Revenue Recognition (Contract A

Revenue Recognition (Contract Assets and Liabilities) (Details) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Contract with Customer, Asset and Liability [Abstract]
Contract asset	$ 2,188	$ 1,896
Contract liability	$ 6,653	$ 6,856

Pension And Postretirement Be_4

Pension And Postretirement Benefits (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Actuarial Gain (Loss)	$ 1,699	$ 432		$ (2,131)	$ 2,726
Discount rate for determining projected benefit obligation	3.70%	4.10%		3.70%		4.50%
Pension Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate in effect for determining net cost, Service Costs				3.90%
Discount rate in effect for determining net cost, Interest Costs				3.25%
Actual Long-term Rate of Return on Plan Assets				10.00%
Expected Long-term Rate of Return on Plan Assets				7.00%
Pension Benefit [Member] | Other Income (Expense) [Member]
Defined Benefit Plan Disclosure [Line Items]
Special termination benefits		$ 93
Supplemental Employee Retirement Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Net supplemental retirement pension benefits costs	$ 25		$ 21	$ 50	$ 42

Pension And Postretirement Be_5

Pension And Postretirement Benefits (Pension And Postretirement Benefit Costs Included In Operating Expenses) (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Defined Benefit Plan Disclosure [Line Items]
Actuarial (gain) loss	$ (1,699)	$ (432)		$ 2,131	$ (2,726)
Qualified Plan [Member] | Funded Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Net (credit) cost	1,268		$ (2,059)	1,327	(3,255)
Pension Benefit [Member] | Qualified Plan [Member] | Funded Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost - benefits earned during the period	243		284	483	575
Interest cost on benefit obligation	508		504	1,057	991
Expected return on assets	(880)		(755)	(1,731)	(1,515)
Amortization of prior service credit	(24)		(29)	(57)	(59)
Actuarial (gain) loss	1,699		(1,796)	2,131	(1,796)
Net (credit) cost	1,546		(1,792)	1,883	(1,804)
Postretirement Benefit [Member] | Qualified Plan [Member] | Funded Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost - benefits earned during the period	18		26	36	55
Interest cost on benefit obligation	186		195	372	386
Expected return on assets	(56)		(75)	(112)	(152)
Amortization of prior service credit	(426)		(413)	(852)	(810)
Actuarial (gain) loss	0		0	0	(930)
Net (credit) cost	$ (278)		$ (267)	$ (556)	$ (1,451)

Fair Value Measurements And D_4

Fair Value Measurements And Disclosure (Narrative) (Details) € in Millions, $ in Millions	Jun. 30, 2019EUR (€)	Jun. 30, 2019USD ($)	Dec. 31, 2018USD ($)
Fair Value Disclosures [Line Items]
Collateral received from counterparty		$ 86	$ 103
Collateral submitted to counterparty		242	1,675
Collateral contingently payable to the counterparty		137
Available-for-sale Securities Debt Securities		1,031	$ 870
Fixed income investments - maturities less than 1 year		26
Fixed income investments - maturities within 1 to 3 years		185
Fixed income investments - maturities within 3 to 5 years		151
Fixed income investments - maturities for 5 or more years		669
Anticipated reclassification of holding losses during the next 12 months - cash flow hedges		63
Measurement Input, Entity Credit Risk [Member]
Fair Value Disclosures [Line Items]
Collateral contingently payable to the counterparty		2,668
DIRECTV [Member]
Fair Value Disclosures [Line Items]
Collateral contingently payable to the counterparty		$ 262
WarnerMedia [Member] | Net Investment Hedge [Member]
Fair Value Disclosures [Line Items]
Debt Instrument, Face Amount | €	€ 700

Fair Value Measurements And D_5

Fair Value Measurements And Disclosure (Long-Term Debt And Other Financial Instruments) (Details) - USD ($) $ in Millions		Jun. 30, 2019	Dec. 31, 2018
Carrying Amount [Member]
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items]
Notes and debentures	[1]	$ 165,443	$ 171,529
Commercial paper		3,164	3,048
Bank borrowings		4	4
Investment securities	[2]	3,518	3,409
Fair Value [Member]
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items]
Commercial paper		3,164	3,048
Bank borrowings		4	4
Investment securities	[2]	3,518	3,409
Fair Value [Member] | Level 2 [Member]
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items]
Notes and debentures	[1]	$ 181,230	$ 172,287
[1]	Includes credit agreement borrowings.
[2]	Excludes investments accounted for under the equity method.

Fair Value Measurements And D_6

Fair Value Measurements And Disclosure (Fair Value Leveling) (Details) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities Debt Securities	$ 1,031	$ 870
Securities Investment [Member] | United States [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities (at fair value)	1,016	1,061
Securities Investment [Member] | Non-US [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities (at fair value)	235	256
Fixed Income Bonds [Member] | United States [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities (at fair value)	209	172
Interest Rate Swaps [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset Derivatives (at fair value)	26
Liability Derivatives (at fair value)		(39)
Cross-Currency Swaps [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset Derivatives (at fair value)	307	472
Liability Derivatives (at fair value)	(2,929)	(2,563)
Interest Rate Locks [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liability Derivatives (at fair value)	(23)
Foreign Exchange Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset Derivatives (at fair value)	68	87
Liability Derivatives (at fair value)	(3)	(2)
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities Debt Securities	0	0
Level 1 [Member] | Securities Investment [Member] | United States [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities (at fair value)	1,016	1,061
Level 1 [Member] | Securities Investment [Member] | Non-US [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities (at fair value)	235	256
Level 1 [Member] | Fixed Income Bonds [Member] | United States [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities (at fair value)	209	172
Level 1 [Member] | Interest Rate Swaps [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset Derivatives (at fair value)	0
Liability Derivatives (at fair value)		0
Level 1 [Member] | Cross-Currency Swaps [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset Derivatives (at fair value)	0	0
Liability Derivatives (at fair value)	0	0
Level 1 [Member] | Interest Rate Locks [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liability Derivatives (at fair value)	0
Level 1 [Member] | Foreign Exchange Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset Derivatives (at fair value)	0	0
Liability Derivatives (at fair value)	0	0
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities Debt Securities	1,031	870
Level 2 [Member] | Securities Investment [Member] | United States [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities (at fair value)	0	0
Level 2 [Member] | Securities Investment [Member] | Non-US [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities (at fair value)	0	0
Level 2 [Member] | Fixed Income Bonds [Member] | United States [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities (at fair value)	0	0
Level 2 [Member] | Interest Rate Swaps [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset Derivatives (at fair value)	26
Liability Derivatives (at fair value)		(39)
Level 2 [Member] | Cross-Currency Swaps [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset Derivatives (at fair value)	307	472
Liability Derivatives (at fair value)	(2,929)	(2,563)
Level 2 [Member] | Interest Rate Locks [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liability Derivatives (at fair value)	(23)
Level 2 [Member] | Foreign Exchange Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset Derivatives (at fair value)	68	87
Liability Derivatives (at fair value)	(3)	(2)
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities Debt Securities	0	0
Level 3 [Member] | Securities Investment [Member] | United States [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities (at fair value)	0	0
Level 3 [Member] | Securities Investment [Member] | Non-US [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities (at fair value)	0	0
Level 3 [Member] | Fixed Income Bonds [Member] | United States [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities (at fair value)	0	0
Level 3 [Member] | Interest Rate Swaps [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset Derivatives (at fair value)	0
Liability Derivatives (at fair value)		0
Level 3 [Member] | Cross-Currency Swaps [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset Derivatives (at fair value)	0	0
Liability Derivatives (at fair value)	0	0
Level 3 [Member] | Interest Rate Locks [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liability Derivatives (at fair value)	0
Level 3 [Member] | Foreign Exchange Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset Derivatives (at fair value)	0	0
Liability Derivatives (at fair value)	$ 0	$ 0

Fair Value Measurement and Disc

Fair Value Measurement and Disclosure (Gain and Losses on Equity Securities) (Details) - Equity Securities [Member] - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Schedule of Available-for-sale Securities [Line Items]
Total gains (losses) recognized on equity securities	$ 50	$ 21	$ 210	$ 8
Gains (Losses) recognized on equity securities sold	69	(3)	155	49
Unrealized gains (losses) recognized on equity securities held at end of period	$ (19)	$ 24	$ 55	$ (41)

Fair Value Measurements And D_7

Fair Value Measurements And Disclosure (Notional Amount Of Our Outstanding Derivative Positions) (Details) - USD ($) $ in Millions	Jul. 31, 2019	Jun. 30, 2019		Dec. 31, 2018
Derivative [Line Items]
Notional Amount of Outstanding Derivative Positions		$ 44,613		$ 47,769
Interest Rate Swaps [Member]
Derivative [Line Items]
Notional Amount of Outstanding Derivative Positions	$ 780	1,633	[1]	3,483	[1]
Cross-Currency Swaps [Member]
Derivative [Line Items]
Notional Amount of Outstanding Derivative Positions		40,311		42,192
Interest Rate Locks [Member]
Derivative [Line Items]
Notional Amount of Outstanding Derivative Positions		2,000		0
Foreign Exchange Contracts [Member]
Derivative [Line Items]
Notional Amount of Outstanding Derivative Positions		$ 669		$ 2,094
[1]	In July 2019 we settled interest rate swaps with a notional value of $ 780.

Fair Value Measurements And D_8

Fair Value Measurements And Disclosure (Effect Of Derivatives On The Consolidated Statements Of Income) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Fair Value Hedging Relationships [Member] | Interest Rate Swaps [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on interest rate swaps	$ 35	$ (9)	$ 59	$ (62)
Gain (Loss) on long-term debt	(35)	9	(59)	62
Cash Flow Hedging Relationships [Member] | Cross-Currency Swaps [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) recognized in accumulated OCI	(763)	(533)	(595)	321
Cash Flow Hedging Relationships [Member] | Interest Rate Locks [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) recognized in accumulated OCI	(23)	0	(23)	0
Cash Flow Hedging Relationships [Member] | Interest Rate Locks [Member] | Interest expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Interest income (expense) reclassified from accumulated OCI into income	(16)	(14)	(32)	(29)
Cash Flow Hedging Relationships [Member] | Foreign Exchange Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) recognized in accumulated OCI	4	0	(3)	0
Cash Flow Hedging Relationships [Member] | Foreign Exchange Contracts [Member] | Other income expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Interest income (expense) reclassified from accumulated OCI into income	$ 7	$ 0	$ 10	$ 0

Acquisitions, Dispositions An_3

Acquisitions, Dispositions And Other Adjustments (Narrative) (Details) - USD ($) $ in Millions	1 Months Ended			6 Months Ended		12 Months Ended
	Jun. 30, 2019	Apr. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Acquisition and Dispositions [Line Items]
Acquisition of business - purchase price (in millions)				$ 320	$ 40,715
Cash proceeds from sale of businesses and interest in affiliates				$ 3,593	$ 59
Hudson Yards North Tower Holding LLC [Member] | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member]
Acquisition and Dispositions [Line Items]
Disposal Date	Jun. 1, 2019
Cash proceeds from sale of businesses and interest in affiliates	$ 2,081
Gain (Loss) on sale of investment	$ (102)
Time Warner Inc. [Member]
Acquisition and Dispositions [Line Items]
Acquisition of business - acquisition period						Jun. 14, 2018
Time Warner Inc. [Member] | WarnerMedia [Member]
Acquisition and Dispositions [Line Items]
Acquisition of business - purchase price (in millions)			$ 79,358
Time Warner Inc. [Member] | WarnerMedia [Member] | Cash [Member]
Acquisition and Dispositions [Line Items]
Acquisition of business - purchase price (in millions)			42,100
Time Warner Inc. [Member] | WarnerMedia [Member] | Common Stock [Member]
Acquisition and Dispositions [Line Items]
Acquisition of business - purchase price (in millions)			$ 36,599
Hulu [Member] | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member]
Acquisition and Dispositions [Line Items]
Disposal Date		Apr. 1, 2019
Cash proceeds from sale of businesses and interest in affiliates		$ 1,430
Gain (Loss) on sale of investment		$ 740

Acquisitions, Dispositions An_4

Acquisitions, Dispositions And Other Adjustments (Fair Value of Assets Acquired and Liabilities Assumed) (Narrative) (Details) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Assets acquired
Noncurrent Inventories and Theatrical Film and Television Production Costs	$ 10,685	$ 7,713
Goodwill	146,662	146,370
Liabilities assumed
Debt maturing within one year	12,772	$ 10,255
Time Warner Inc. [Member]
Assets acquired
Cash	1,889
Accounts Receivable	9,020
All other current assets	2,913
Noncurrent Inventories and Theatrical Film and Television Production Costs	5,591
Property, plant and equipment	4,693
Investments and other assets	9,438
Goodwill	38,801
Total assets acquired	129,572
Liabilities assumed
Current liabilities, excluding current portion of long-term debt	8,294
Debt maturing within one year	4,471
Long-term debt	18,394
Other noncurrent liabilities	19,054
Total liabilities assumed	50,213
Net assets acquired	79,359
Noncontrolling interest	(1)
Aggregate value of consideration paid	79,358
Time Warner Inc. [Member] | Distribution Networks [Member]
Assets acquired
Intangible assets subject to amortization	18,040
Time Warner Inc. [Member] | Released television and film content [Member]
Assets acquired
Intangible assets subject to amortization	10,806
Time Warner Inc. [Member] | Trademarks/trade names [Member]
Assets acquired
Intangible assets subject to amortization	18,081
Time Warner Inc. [Member] | Other [Member]
Assets acquired
Intangible assets subject to amortization	$ 10,300

Sale Of Equipment Installment_3

Sale Of Equipment Installment Receivables (Narrative) (Details) - USD ($) $ in Millions	1 Months Ended		3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Payable And Accrued Liabilities Current	$ 42,082		$ 42,082		$ 42,082		$ 43,184
Guarantee Obligations [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Payable And Accrued Liabilities Current	91		91		91		196
Guarantee Obligation, current	454		454		454		439
Deferred Purchase Price [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Supplemental Deferred Purchase Price					1,531		1,448
Finance Receivables [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Supplemental Deferred Purchase Price			261	$ 307	570	$ 826
Other Assets [Member] | Deferred Purchase Price [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Other Assets	2,242		2,242		2,242		2,370
Other Current Assets [Member] | Deferred Purchase Price [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Other Assets	1,531		1,531		1,531		$ 1,448
WarnerMedia [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Agreement Amount With Purchaser To Transfer Financial Assets Accounted For As Sales	2,600	$ 1,400			4,000
Agreement Amount With Purchaser To Transfer Financial Assets Accounted For As Sales, Outstanding At A Point In Time	3,725		3,725		3,725
WarnerMedia [Member] | Guarantee Obligations [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Pledged Assets, Not Separately Reported, Finance Receivables	$ 2,769		$ 2,769		$ 2,769

Sale Of Equipment Installment_4

Sale Of Equipment Installment Receivables (Equipment Installment and WarnerMedia Programs) (Details) - USD ($) $ in Millions		Jun. 30, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross receivables:		$ 4,519	$ 5,994
Outstanding portfolio of receivables derecognized from our consolidated balance sheets		9,528	9,065
Cash proceeds received, net of remittances	[1]	7,073	6,508
Notes Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable		2,599	3,457
Trade receivables [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable		449	438
Other Assets [Member] | Deferred Purchase Price [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Other Assets		2,242	2,370
Other Current Assets [Member] | Deferred Purchase Price [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Other Assets		1,531	1,448
Other Noncurrent Assets [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross receivables:		1,471	2,099
WarnerMedia [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross receivables:		2,769	0
Outstanding portfolio of receivables derecognized from our consolidated balance sheets		3,725	0
Cash proceeds received, net of remittances	[1]	3,725	0
WarnerMedia [Member] | Notes Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable		0	0
WarnerMedia [Member] | Trade receivables [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable		2,286	0
WarnerMedia [Member] | Other Noncurrent Assets [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross receivables:		$ 483	$ 0
[1]	Represents amounts to which financial institutions remain entitled, excluding the deferred purchase price.

Sale Of Equipment Installment_5

Sale Of Equipment Installment Receivables (Finance Receivables) (Details) - Finance Receivables [Member] - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross receivables sold		$ 2,244	$ 1,906	$ 4,945	$ 4,916
Net receivables sold	[1]	2,133	1,811	4,679	4,606
Cash proceeds received		1,920	1,532	4,195	3,927
Deferred purchase price recorded		261	307	570	826
Guarantee obligation recorded		$ 93	$ 72	$ 194	$ 195
[1]	Receivables net of allowance, imputed interest and equipment trade-in right guarantees.

Sale Of Equipment Installment_6

Sale Of Equipment Installment Receivables (Finance Receivables Repurchased) (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of repurchased receivables		$ 235	$ 1,481	$ 658	$ 1,481
Carrying value of deferred purchase price		225	1,393	632	1,393
Gain (Loss) on repurchases	[1]	$ 10	$ 88	$ 26	$ 88
[1]	These gains (losses) are included in “Selling, general and administrative” in the consolidated statements of income.

Sale of Equipment Installment_7

Sale of Equipment Installment Receivables (Summary of WarnerMedia Receivables Sold) (Details) - WarnerMedia [Member] - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Transfer Of Financial Assets Accounted For As Sales [Line Items]
Initial sale of receivables		$ 2,325	$ 0	$ 3,725	$ 0
Collections reinvested under revolving agreement		2,127	0	2,127	0
Gross receivables sold/cash proceeds received		4,452	0	5,852	0
Net receivables sold	[1]	4,134	0	5,497	0
Guarantee obligation recorded		$ 384	$ 0	$ 436	$ 0
[1]	Receivables net of allowance, return and incentive reserves and imputed interest

Leases (Narrative) (Details)

Leases (Narrative) (Details)	6 Months Ended
	Jun. 30, 2019
Leases [Line Items]
Operating lease, option to terminate leases	Some of our operating leases inclue options to terminate within one year.
Finance Lease, option to terminate leases	Some of our finance leases include options to terminate within one year.
Minimum [Member]
Leases [Line Items]
Operating Lease, remaining term of contract	1 year
Finance Lease, remaining term of contract	1 year
Maximum [Member]
Leases [Line Items]
Operating Lease, remaining term of contract	15 years
Finance Lease, remaining term of contract	15 years

Leases (Components of Lease Exp

Leases (Components of Lease Expense) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019
Operating Lease [Abstract]
Operating Lease Cost	$ 1,610	$ 2,852
Finance Lease [Abstract]
Amortization of right-of-use assets	70	136
Interest on lease obligation	42	84
Finance Lease [Member]
Finance Lease [Abstract]
Total finance lease cost	$ 112	$ 220

Leases (Supplemental Balance Sh

Leases (Supplemental Balance Sheet Information Related to Leases) (Details) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Operating Lease [Abstract]
Operating Lease, Right-of-Use Asset	$ 22,650	$ 0
Accounts payable and accrued liabilities	42,082	43,184
Operating lease liabilities	20,568	0
Total	23,912
Finance Lease [Abstract]
Property, plant and equipment, at cost	334,916	330,690
Accumulated depreciation and amortization	(202,842)	(199,217)
Property, plant and equipment - net	132,074	$ 131,473
Total finance lease obligation	$ 1,946
Operating Lease, Weighted Average Remaining Lease Term	8 years 4 months 24 days
Finance Lease, Weighted Average Remaining Lease Term	10 years 8 months 12 days
Operating Lease, Weighted Average Discount Rate, Percent	4.70%
Finance Lease, Weighted Average Discount Rate, Percent	8.50%
Operating Lease
Operating Lease [Abstract]
Accounts payable and accrued liabilities	$ 3,344
Finance Lease
Finance Lease [Abstract]
Property, plant and equipment, at cost	3,362
Accumulated depreciation and amortization	(1,178)
Property, plant and equipment - net	2,184
Current portion of long-term debt	137
Long-term debt	$ 1,809

Leases (Future Minimum Maturiti

Leases (Future Minimum Maturities of Lease Liabilities) (Details) $ in Millions	Jun. 30, 2019USD ($)
Operating Leases [Abstract]
Remainder of 2019	$ 2,250
2020	4,276
2021	3,841
2022	3,561
2023	3,228
Thereafter	12,502
Total lease payments	29,658
Less imputed interest	(5,746)
Total	23,912
Finance Leases [Abstract]
Remainder of 2019	169
2020	296
2021	274
2022	264
2023	253
Thereafter	1,814
Total lease payments	3,070
Less inputed interest	(1,124)
Total	$ 1,946

Additional Financial Informat_3

Additional Financial Information (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018	Dec. 31, 2017
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Abstract]
Cash and cash equivalents	$ 8,423	$ 13,523	$ 5,204	$ 50,498
Restricted cash in Other current assets	15	12	61	6
Restricted cash in Other Assets	216	218	135	428
Cash and cash equivalents and restricted cash	8,654	13,753	$ 5,400	$ 50,932
Cash Paid for Amounts Included in the Measurement of Lease Liabilities [Abstract]
Operating cash flows from operating leases	2,464	2,458
Operating lease right-of-use assets obtained in exchange for new operating lease obligations	3,899	0
Cash paid (refunded) during the year for:
Interest	4,410	4,045
Income taxes, net of refunds	$ (32)	$ (757)

Additional Financial Informat_4

Additional Financial Information (Narrative) (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Additional Financial Information [Line Items]
Payments for other financing activities	$ (1,506)	$ (1,121)
Vendor Financing Program [Member]
Additional Financial Information [Line Items]
Noncash Investing Activities	1,265
Payments for other financing activities	$ (1,836)

Uncategorized Items - t-2019063

Label	Element	Value
Noncontrolling Interest [Member]
Cumulative effect of accounting changes, net of taxes	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	$ 35,000,000
Cumulative effect of accounting changes, net of taxes	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	0
Cumulative effect of accounting changes, net of taxes	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	29,000,000
Cumulative effect of accounting changes, net of taxes	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	0
Retained Earnings [Member]
Cumulative effect of accounting changes, net of taxes	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	316,000,000
Cumulative effect of accounting changes, net of taxes	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	3,000,000,000
Cumulative effect of accounting changes, net of taxes	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	3,000,000
Cumulative effect of accounting changes, net of taxes	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	$ 0