Cognizant Technology Solutions (CTSH) 10-Q 6 Nov 13 2013 Q3 Quarterly report Financial data

Document_And_Entity_Informatio

Document And Entity Information	9 Months Ended
	Sep. 30, 2013	Nov. 01, 2013
Document And Entity Information [Abstract]	'	'
Document Type	'10-Q	'
Amendment Flag	'false	'
Document Period End Date	30-Sep-13	'
Document Fiscal Year Focus	'2013	'
Document Fiscal Period Focus	'Q3	'
Trading Symbol	'CTSH	'
Entity Registrant Name	'COGNIZANT TECHNOLOGY SOLUTIONS CORP	'
Entity Central Index Key	'0001058290	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Large Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	302,497,091

Condensed_Consolidated_Stateme

Condensed Consolidated Statements Of Operations (USD $)	3 Months Ended				9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012
Income Statement [Abstract]	'		'		'		'
Revenues	$2,305,723	[1]	$1,891,688	[1]	$6,487,701	[1]	$5,398,257	[1]
Operating expenses:	'		'		'		'
Cost of revenues (exclusive of depreciation and amortization expense shown separately below)	1,382,336		1,111,898		3,854,314		3,127,307
Selling, general and administrative expenses	443,376		384,951		1,277,106		1,155,900
Depreciation and amortization expense	42,652		39,453		126,212		109,807
Income from operations	437,359		355,386		1,230,069		1,005,243
Other income (expense), net:	'		'		'		'
Interest income	10,696		12,041		37,023		33,097
Other, net	-8,857		-3,044		-30,314		-16,588
Total other income (expense), net	1,839		8,997		6,709		16,509
Income before provision for income taxes	439,198		364,383		1,236,778		1,021,752
Provision for income taxes	119,571		87,482		332,532		249,268
Net income	$319,627		$276,901		$904,246		$772,484
Basic earnings per share	$1.06		$0.93		$3		$2.56
Diluted earnings per share	$1.05		$0.91		$2.97		$2.52
Weighted average number of common shares outstanding - Basic	301,632		299,058		301,719		301,571
Dilutive effect of shares issuable under stock-based compensation plans	2,643		4,074		2,913		4,984
Weighted average number of common shares outstanding - Diluted	304,275		303,132		304,632		306,555
[1]	Revenues are attributed to regions based upon customer location.

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements Of Comprehensive Income (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Statement of Other Comprehensive Income [Abstract]	'	'	'	'
Net income	$319,627	$276,901	$904,246	$772,484
Other comprehensive income (loss), net of tax:	'	'	'	'
Foreign currency translation adjustments	25,346	6,669	5,183	8,923
Change in unrealized loss on cash flow hedges, net of tax	-77,067	198,549	-139,156	124,863
Change in unrealized gains and losses on available-for-sale securities, net of tax	1,234	1,480	-1,433	1,565
Other comprehensive income (loss)	-50,487	206,698	-135,406	135,351
Comprehensive income	$269,140	$483,599	$768,840	$907,835

Condensed_Consolidated_Stateme2

Condensed Consolidated Statements Of Financial Position (USD $)	Sep. 30, 2013		Dec. 31, 2012
Assets	'		'
Cash and cash equivalents	$2,031,119,000		$1,570,077,000
Short-term investments	1,329,480,000		1,293,681,000
Trade accounts receivable, net of allowances of $31,344 and $25,816, respectively	1,637,126,000		1,345,661,000
Unbilled accounts receivable	254,060,000		183,085,000
Deferred income tax assets, net	268,635,000		201,894,000
Other current assets	218,785,000		219,896,000
Total current assets	5,739,205,000		4,814,294,000
Property and equipment, net of accumulated depreciation of $680,664 and $573,792, respectively	1,011,803,000	[1]	971,486,000	[1]
Goodwill	417,959,000		309,185,000
Intangible assets, net	118,141,000		87,475,000
Deferred income tax assets, net	160,746,000		178,824,000
Other noncurrent assets	169,295,000		160,307,000
Total assets	7,617,149,000		6,521,571,000
Liabilities and Stockholders' Equity	'		'
Accounts payable	114,825,000		108,707,000
Deferred revenue	141,937,000		149,696,000
Accrued expenses and other current liabilities	1,345,276,000		1,118,927,000
Total current liabilities	1,602,038,000		1,377,330,000
Deferred income tax liabilities, net	14,794,000		2,777,000
Other noncurrent liabilities	352,041,000		287,081,000
Total liabilities	1,968,873,000		1,667,188,000
Commitments and contingencies (See Note 8)	0		0
Stockholders' Equity:	'		'
Preferred stock, $.10 par value, 15,000 shares authorized, none issued	0		0
Class A common stock, $.01 par value, 1,000,000 shares authorized, 302,369 and 301,680 shares issued and outstanding at September 30, 2013 and December 31, 2012, respectively	3,024,000		3,017,000
Additional paid-in capital	482,306,000		457,260,000
Retained earnings	5,538,035,000		4,633,789,000
Accumulated other comprehensive income (loss)	-375,089,000		-239,683,000
Total stockholders’ equity	5,648,276,000		4,854,383,000
Total liabilities and stockholders’ equity	$7,617,149,000		$6,521,571,000
[1]	Long-lived assets include property and equipment, net of accumulated depreciation and amortization.

Condensed_Consolidated_Stateme3

Condensed Consolidated Statements Of Financial Position (Parenthetical) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, except Share data, unless otherwise specified
Statement of Financial Position [Abstract]	'	'
Trade accounts receivable, allowances	$31,344	$25,816
Property and equipment, accumulated depreciation	$680,664	$573,792
Preferred stock, par value	$0.10	$0.10
Preferred stock, shares authorized	15,000,000	15,000,000
Preferred stock, issued	0	0
Class A common stock, par value	$0.01	$0.01
Class A common stock, shares authorized	1,000,000,000	1,000,000,000
Class A common stock, shares issued	302,369,000	301,680,000
Class A common stock, shares outstanding	302,369,000	301,680,000

Condensed_Consolidated_Stateme4

Condensed Consolidated Statements Of Cash Flows (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Cash flows from operating activities:	'	'
Net income	$904,246	$772,484
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Depreciation and amortization	132,013	115,424
Provision for doubtful accounts	5,985	4,348
Deferred income taxes	-22,844	-61,890
Stock-based compensation expense	86,353	79,911
Excess tax benefits on stock-based compensation plans	-16,450	-24,960
Other	52,171	-4,382
Changes in assets and liabilities:	'	'
Trade accounts receivable	-273,502	-184,537
Other current assets	-56,647	-8,069
Other noncurrent assets	-9,604	-18,691
Accounts payable	3,251	39,386
Other current and noncurrent liabilities	112,931	101,699
Net cash provided by operating activities	917,903	810,723
Cash flows from investing activities:	'	'
Purchases of property and equipment	-154,346	-208,716
Purchases of investments	-1,368,812	-1,179,674
Proceeds from maturity or sale of investments	1,297,258	1,002,952
Business combinations, net of cash acquired	-152,476	-43,896
Net cash (used in) investing activities	-378,376	-429,334
Cash flows from financing activities:	'	'
Issuance of common stock under stock-based compensation plans	76,837	91,883
Excess tax benefits on stock-based compensation plans	16,450	24,960
Repurchases of common stock	-154,336	-483,895
Net cash (used in) financing activities	-61,049	-367,052
Effect of exchange rate changes on cash and cash equivalents	-17,436	-504
Increase in cash and cash equivalents	461,042	13,833
Cash and cash equivalents, beginning of year	1,570,077	1,310,906
Cash and cash equivalents, end of period	$2,031,119	$1,324,739

Interim_Condensed_Consolidated

Interim Condensed Consolidated Financial Statements	9 Months Ended
	Sep. 30, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Interim Condensed Consolidated Financial Statements	'
	Interim Condensed Consolidated Financial Statements
	The terms “Cognizant,” “we,” “our,” “us” and “Company” refer to Cognizant Technology Solutions Corporation unless the context indicates otherwise. We have prepared the accompanying unaudited condensed consolidated financial statements included herein in accordance with generally accepted accounting principles in the United States of America, or U.S. GAAP, and Article 10 of Regulation S-X under the Securities Exchange Act of 1934, as amended. The accompanying unaudited condensed consolidated financial statements should be read in conjunction with our audited consolidated financial statements (and notes thereto) included in our Annual Report on Form 10-K for the year ended December 31, 2012. In our opinion, all adjustments considered necessary for a fair presentation of the accompanying unaudited condensed consolidated financial statements have been included, and all adjustments are of a normal and recurring nature. Operating results for the interim periods are not necessarily indicative of results that may be expected to occur for the entire year.
	In May 2013, our Board of Directors approved an expansion of our stock repurchase program, increasing the Company’s stock repurchase authorization under the program from $1,000,000 to $1,500,000 and extending the term of the stock repurchase program from December 31, 2013 to December 31, 2014.
	During the nine months ended September 30, 2013, we repurchased 2,045,592 shares of our Class A common stock for $131,561, inclusive of fees and expenses, under our existing stock repurchase program approved by our Board of Directors.

Business_Combination

Business Combination	9 Months Ended
	Sep. 30, 2013
Business Combinations [Abstract]	'
Business Combination	'
	Business Combinations
	During the nine months ended September 30, 2013, we completed two business combinations for total cash consideration of approximately $146,600 (net of cash acquired). These transactions strengthen our local presence in Germany and Switzerland, and expand our expertise in enterprise application services and high-end testing services, as well as broaden our business process outsourcing capabilities within finance and accounting. As part of these business combinations, we acquired customer relationship assets, assembled workforces, a software platform and other assets.
	These acquisitions were included in our unaudited condensed consolidated financial statements as of the date on which the businesses were acquired and were not material to our operations, financial position or cash flow. We have allocated the purchase price related to these transactions to tangible and intangible assets and liabilities, including non-deductible goodwill, based on their fair values as described in the table below:
		Fair Value		Useful Life
	Total consideration, net of cash acquired	$	146,600
	Purchase price allocated to:
	Non-deductible goodwill	105,801
	Customer relationship intangible asset	43,831		10 years
	Other intangible assets	3,067		2-5 years
	The primary items that generated the aforementioned goodwill are the value of the synergies between the acquired companies and us and the acquired assembled workforces, neither of which qualify as an amortizable intangible asset.

Investments

Investments	9 Months Ended
	Sep. 30, 2013
Investments [Abstract]	'
Investments	'
	Investments
	Our investments were as follows:
		30-Sep-13			31-Dec-12
	Available-for-sale investment securities:
	U.S. Treasury and agency debt securities	$	532,709		$	551,236
	Corporate and other debt securities	257,341			294,556
	Asset-backed securities	157,021			97,112
	Municipal debt securities	85,135			47,292
	Mutual funds	21,124			21,150
	Total available-for-sale investment securities	1,053,330			1,011,346
	Time deposits	276,150			282,335
	Total investments	$	1,329,480		$	1,293,681
	Our available-for-sale investment securities consist of U.S. dollar denominated investments primarily in U.S. Treasury notes, U.S. government agency debt securities, municipal debt securities, non-U.S. government debt securities, U.S. and international corporate bonds, certificates of deposit, commercial paper, debt securities issued by supranational institutions, mutual funds invested in fixed income securities, and asset-backed securities, including Government National Mortgage Association (GNMA) mortgage backed securities and securities backed by auto loans, credit card receivables, and other receivables. Our investment guidelines are to purchase securities which are investment grade at the time of acquisition. We monitor the credit ratings of the securities in our portfolio on an ongoing basis. The carrying value of the time deposits approximated fair value as of September 30, 2013 and December 31, 2012.
	Available-for-Sale Investment Securities
	The amortized cost, gross unrealized gains and losses and fair value of available-for-sale investment securities at September 30, 2013 were as follows:
		Amortized			Unrealized			Unrealized			Fair
		Cost			Gains			Losses			Value
	U.S. Treasury and agency debt securities	$	531,960		$	881		$	(132	)	$	532,709
	Corporate and other debt securities	256,515			1,026			(200		)	257,341
	Asset-backed securities	157,329			91			(399		)	157,021
	Municipal debt securities	84,967			207			(39		)	85,135
	Mutual funds	22,340			191			(1,407		)	21,124
	Total available-for-sale investment securities	$	1,053,111		$	2,396		$	(2,177	)	$	1,053,330
	The amortized cost, gross unrealized gains and losses and fair value of available-for-sale investment securities at December 31, 2012 were as follows:
		Amortized			Unrealized			Unrealized			Fair
		Cost			Gains			Losses			Value
	U.S. Treasury and agency debt securities	$	550,317		$	972		$	(53	)	$	551,236
	Corporate and other debt securities	292,736			1,842			(22		)	294,556
	Asset-backed securities	97,004			237			(129		)	97,112
	Municipal debt securities	47,266			93			(67		)	47,292
	Mutual funds	21,583			—			(433		)	21,150
	Total available-for-sale investment securities	$	1,008,906		$	3,144		$	(704	)	$	1,011,346
	The fair value and related unrealized losses of available-for-sale investment securities in a continuous unrealized loss position for less than 12 months and for 12 months or longer were as follows as of September 30, 2013:
		Less than 12 Months						12 Months or More						Total
		Fair			Unrealized			Fair			Unrealized			Fair		Unrealized
		Value			Losses			Value			Losses			Value		Losses
	U.S. Treasury and agency debt securities	$	101,426		$	(132	)	$	—		$	—		$	101,426	$	(132	)
	Corporate and other debt securities	61,887			(200		)	—			—			61,887		(200		)
	Asset-backed securities	84,375			(386		)	4,567			(13		)	88,942		(399		)
	Municipal debt securities	13,967			(30		)	1,032			(9		)	14,999		(39		)
	Mutual funds	—			—			20,260			(1,407		)	20,260		(1,407		)
	Total	$	261,655		$	(748	)	$	25,859		$	(1,429	)	$	287,514	$	(2,177	)
	The fair value and related unrealized losses of available-for-sale investment securities in a continuous unrealized loss position for less than 12 months and for 12 months or longer were as follows as of December 31, 2012:
		Less than 12 Months						12 Months or More						Total
		Fair			Unrealized			Fair			Unrealized			Fair		Unrealized
		Value			Losses			Value			Losses			Value		Losses
	U.S. Treasury and agency debt securities	$	120,118		$	(53	)	$	—		$	—		$	120,118	$	(53	)
	Corporate and other debt securities	25,662			(21		)	699			(1		)	26,361		(22		)
	Asset-backed securities	27,180			(93		)	1,499			(36		)	28,679		(129		)
	Municipal debt securities	7,908			(32		)	696			(35		)	8,604		(67		)
	Mutual funds	21,150			(433		)	—			—			21,150		(433		)
	Total	$	202,018		$	(632	)	$	2,894		$	(72	)	$	204,912	$	(704	)
	The unrealized losses for the above securities as of September 30, 2013 and December 31, 2012 are primarily attributable to changes in interest rates. As of September 30, 2013, we do not consider any of the investments to be other-than-temporarily impaired. The gross unrealized gains and losses in the above tables were recorded, net of tax, in accumulated other comprehensive income (loss).
	The contractual maturities of our fixed income available-for-sale investment securities as of September 30, 2013 are set forth in the following table:
		Amortized			Fair
		Cost			Value
	Due within one year	$	108,385		$	108,565
	Due after one year up to two years	402,345			403,330
	Due after two years up to three years	334,040			334,525
	Due after three years up to four years	28,672			28,765
	Asset-backed securities	157,329			157,021
	Fixed income available-for-sale investment securities	$	1,030,771		$	1,032,206
	Asset-backed securities were excluded from the maturity categories because the actual maturities may differ from the contractual maturities since the underlying receivables may be prepaid without penalties. Further, actual maturities of debt securities may differ from those presented above since certain obligations provide the issuer the right to call or prepay the obligation prior to scheduled maturity without penalty.
Proceeds from sales of available-for-sale investment securities and the gross gains and losses that have been included in earnings as a result of those sales were as follows:
	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2013			2012			2013			2012
Proceeds from sales of available-for-sale investment securities	$	211,696		$	207,229		$	871,696		$	559,095
Gross gains	$	315		$	870		$	1,530		$	1,857
Gross losses	(166		)	—			(553		)	(335		)
Net realized gains on sales of available-for-sale investment securities	$	149		$	870		$	977		$	1,522

Accrued_Expenses_And_Other_Cur

Accrued Expenses And Other Current Liabilities	9 Months Ended
	Sep. 30, 2013
Accrued Expenses And Other Current Liabilities [Abstract]	'
Accrued Expenses And Other Current Liabilities	'
	Accrued Expenses and Other Current Liabilities
	Accrued expenses and other current liabilities were as follows:
		30-Sep-13		31-Dec-12
	Compensation and benefits	$	755,979	$	661,816
	Income taxes	34,385		29,570
	Professional fees	37,643		35,366
	Travel and entertainment	31,435		26,417
	Customer volume incentives	150,777		142,945
	Derivative financial instruments	226,117		130,923
	Deferred income taxes	83		454
	Other	108,857		91,436
	Total accrued expenses and other current liabilities	$	1,345,276	$	1,118,927

Income_Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2013
Income Tax Disclosure [Abstract]	'
Income Taxes	'
	Income Taxes
	Our Indian subsidiaries, collectively referred to as Cognizant India, are primarily export-oriented and are eligible for certain income tax holiday benefits granted by the government of India for export activities conducted within Special Economic Zones, or SEZs, for periods of up to 15 years. Our Indian operations outside of SEZs are subject to corporate income tax at the applicable statutory rate. In addition, all Indian profits, including those generated within SEZs, are subject to the Minimum Alternative Tax, or MAT, at the current rate of 20.0%. Any MAT paid is creditable against future Indian corporate income tax, subject to limitations.
	Our effective income tax rates were as follows:
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2013		2012		2013		2012
	Effective income tax rate	27.2	%	24	%	26.9	%	24.4	%
	For the 2013 and 2012 periods, the principal difference between our effective income tax rates and the U.S. federal statutory rate is the effect of the Indian tax holiday and earnings taxed in countries that have lower rates than the United States. In 2013, our effective income tax rates increased primarily due to a shift in the geographic mix of our current year earnings towards countries with higher statutory rates, an increase of the India statutory rate effective April 1, 2013, and a scheduled reduction of certain income tax holiday benefits in India in 2013.

Fair_Value_Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2013
Fair Value Disclosures [Abstract]	'
Fair Value Measurements	'
	Fair Value Measurements
	We measure our cash equivalents, investments and foreign exchange forward contracts at fair value. The authoritative guidance defines fair value as the exit price, or the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants as of the measurement date. The authoritative guidance also establishes a fair value hierarchy that is intended to increase consistency and comparability in fair value measurements and related disclosures. The fair value hierarchy is based on inputs to valuation techniques that are used to measure fair value that are either observable or unobservable. Observable inputs reflect assumptions market participants would use in pricing an asset or liability based on market data obtained from independent sources while unobservable inputs reflect a reporting entity’s pricing based upon their own market assumptions.
	The fair value hierarchy consists of the following three levels:
	•	Level 1 – Inputs are quoted prices in active markets for identical assets or liabilities.
	•	Level 2 – Inputs are quoted prices for similar assets or liabilities in an active market, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable and market-corroborated inputs which are derived principally from or corroborated by observable market data.
	•	Level 3 – Inputs are derived from valuation techniques in which one or more significant inputs or value drivers are unobservable.
	The following table summarizes our financial assets and (liabilities) measured at fair value on a recurring basis as of September 30, 2013:
		Level 1		Level 2			Level 3		Total
	Cash equivalents:
	Money market funds	$	628,749	$	—		$	—	$	628,749
	Total cash equivalents	628,749		—			—		628,749
	Investments:
	Time deposits	—		276,150			—		276,150
	Available-for-sale investment securities:
	U.S. Treasury and agency debt securities	415,911		116,798			—		532,709
	Corporate and other debt securities	—		257,341			—		257,341
	Asset-backed securities	—		157,021			—		157,021
	Municipal debt securities	—		85,135			—		85,135
	Mutual funds	—		21,124			—		21,124
	Total available-for-sale investment securities	415,911		637,419			—		1,053,330
	Total investments	415,911		913,569			—		1,329,480
	Derivative financial instruments - foreign exchange forward contracts:
	Other current assets	—		17,425			—		17,425
	Accrued expenses and other current liabilities	—		(226,117		)	—		(226,117		)
	Other noncurrent liabilities	—		(237,627		)	—		(237,627		)
	Total	$	1,044,660	$	467,250		$	—	$	1,511,910
	The following table summarizes our financial assets and (liabilities) measured at fair value on a recurring basis as of December 31, 2012:
		Level 1		Level 2			Level 3		Total
	Cash equivalents:
	Money market funds	$	411,512	$	—		$	—	$	411,512
	Time deposits	—		300,770			—		300,770
	Commercial paper	—		7,918			—		7,918
	Total cash equivalents	411,512		308,688			—		720,200
	Investments:
	Time deposits	—		282,335			—		282,335
	Available-for-sale investment securities:
	U.S. Treasury and agency debt securities	392,067		159,169			—		551,236
	Corporate and other debt securities	—		294,556			—		294,556
	Asset-backed securities	—		97,112			—		97,112
	Municipal debt securities	—		47,292			—		47,292
	Mutual funds	—		21,150			—		21,150
	Total available-for-sale investment securities	392,067		619,279			—		1,011,346
	Total investments	392,067		901,614			—		1,293,681
	Derivative financial instruments - foreign exchange forward contracts:
	Other current assets	—		1,344			—		1,344
	Accrued expenses and other current liabilities	—		(130,923		)	—		(130,923		)
	Other noncurrent assets	—		3,436			—		3,436
	Other noncurrent liabilities	—		(175,628		)	—		(175,628		)
	Total	$	803,579	$	908,531		$	—	$	1,712,110
	We measure the fair value of money market funds and U.S. Treasury securities based on quoted prices in active markets for identical assets. The fair value of commercial paper, certificates of deposit, U.S. government agency securities, municipal debt securities, U.S. and international corporate bonds and foreign government debt securities is measured based on relevant trade data, dealer quotes, or model driven valuations using significant inputs derived from or corroborated by observable market data, such as yield curves and credit spreads. We measure the fair value of our asset-backed securities using model driven valuations based on significant inputs derived from or corroborated by observable market data such as dealer quotes, available trade information, spread data, current market assumptions on prepayment speeds and defaults and historical data on deal collateral performance. The value of the mutual funds invested in fixed income securities is based on the net asset value, or NAV, of the fund, with appropriate consideration of the liquidity and any restrictions on disposition of our investment in the fund.
	We estimate the fair value of each foreign exchange forward contract by using a present value of expected cash flows model. This model calculates the difference between the current market forward price and the contracted forward price for each foreign exchange contract and applies the difference in the rates to each outstanding contract. The market forward rates include a discount and credit risk factor. The amounts are aggregated by type of contract and maturity.
	During the nine months ended September 30, 2013 and the year ended December 31, 2012, there were no transfers among Level 1, Level 2, or Level 3 financial assets and liabilities.

Derivative_Financial_Instrumen

Derivative Financial Instruments	9 Months Ended
	Sep. 30, 2013
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Derivative Financial Instruments	'
	Derivative Financial Instruments
	In the normal course of business, we use foreign exchange forward contracts to manage foreign currency exchange rate risk. The estimated fair value of the foreign exchange forward contracts considers the following items: discount rate, timing and amount of cash flow and counterparty credit risk. Derivatives may give rise to credit risks from the possible non-performance by counterparties. Credit risk is generally limited to the fair value of those contracts that are favorable to us. We have limited our credit risk by entering into derivative transactions only with highly-rated global financial institutions, limiting the amount of credit exposure with any one financial institution and conducting ongoing evaluation of the creditworthiness of the financial institutions with which we do business. In addition, all the assets and liabilities related to our foreign exchange forward contracts set forth in the below table are subject to International Swaps and Derivatives Association, or ISDA, master netting arrangements or other similar agreements with each individual counterparty. These master netting arrangements generally provide for net settlement of all outstanding contracts with the counterparty in the case of an event of default or a termination event. We have presented all the assets and liabilities related to our foreign exchange forward contracts on a gross basis, with no offsets, in our accompanying unaudited condensed consolidated statements of financial position. There is no financial collateral (including cash collateral) posted or received by us related to our foreign exchange forward contracts.
	The following table provides information on the location and fair values of derivative financial instruments included in our unaudited condensed consolidated statement of financial position as of:
				30-Sep-13							31-Dec-12
	Designation of Derivatives	Location on Statement of		Assets				Liabilities			Assets			Liabilities
		Financial Position
	Cash Flow Hedges – Designated as hedging instruments
	Foreign exchange forward contracts	Other current assets		$	—			$	—		$	1,230		$	—
		Other noncurrent assets		—				—			3,436			—
		Accrued expenses and other current liabilities		—				226,048			—			125,633
		Other noncurrent liabilities		—				237,627			—			175,628
		Total		—				463,675			4,666			301,261
	Other Derivatives – Not designated as hedging instruments
	Foreign exchange forward contracts	Other current assets		17,425				—			114			—
		Accrued expenses and other current liabilities		—				69			—			5,290
		Total		17,425				69			114			5,290
	Total			$	17,425			$	463,744		$	4,780		$	306,551
	Cash Flow Hedges
	We have entered into a series of foreign exchange forward contracts that are designated as cash flow hedges of Indian rupee denominated payments in India. These contracts are intended to partially offset the impact of movement of exchange rates on future operating costs and are scheduled to mature each month during 2013, 2014, 2015 and 2016. Under these contracts, we purchase Indian rupees and sell U.S. dollars. The changes in fair value of these contracts are initially reported in the caption “accumulated other comprehensive income (loss)” in our consolidated statements of financial position and are subsequently reclassified to earnings in the same period the hedge contract matures. As of September 30, 2013, we estimate that $191,089, net of tax, of the net losses related to derivatives designated as cash flow hedges recorded in accumulated other comprehensive income (loss) is expected to be reclassified into earnings within the next 12 months.
	The notional value of our outstanding contracts by year of maturity and the net unrealized (loss) included in accumulated other comprehensive income (loss) for such contracts were as follows as of:
		30-Sep-13				31-Dec-12
	2013	$	315,000			$	1,253,000
	2014	1,200,000				1,200,000
	2015	900,000				780,000
	2016	240,000				120,000
	Total notional value of contracts outstanding	$	2,655,000			$	3,353,000
	Net unrealized (loss) included in accumulated other comprehensive income (loss), net of taxes	$	(391,966	)		$	(252,810	)
	Upon settlement or maturity of the cash flow hedge contracts, we record the related gain or loss, based on our designation at the commencement of the contract, with the hedged Indian rupee denominated expense reported within cost of revenues and selling, general and administrative expenses. Hedge ineffectiveness was immaterial for all periods presented.
	The following table provides information on the location and amounts of pre-tax (losses) on our cash flow hedges for the three months ended September 30:
		(Increase) Decrease in								Location of Net Derivative	Net (Loss) Reclassified
		Derivative								(Losses) Reclassified	from Accumulated Other
		Losses Recognized								from Accumulated Other	Comprehensive Income (Loss)
		in Accumulated Other								Comprehensive Income (Loss)	into Income
		Comprehensive Income (Loss)								into Income	(effective portion)
		(effective portion)								(effective portion)
		2013				2012					2013			2012
	Cash Flow Hedges – Designated as hedging instruments
	Foreign exchange forward contracts	$	(149,916	)		$	206,693			Cost of revenues	$	(48,755	)	$	(25,124	)
										Selling, general and administrative expenses	(9,995		)	(5,493		)
										Total	$	(58,750	)	$	(30,617	)
	The following table provides information on the location and amounts of pre-tax (losses) on our cash flow hedges for the nine months ended September 30:
		(Increase) Decrease in								Location of Net Derivative	Net (Loss) Reclassified
		Derivative								(Losses) Reclassified	from Accumulated Other
		Losses Recognized								from Accumulated Other	Comprehensive Income (Loss)
		in Accumulated Other								Comprehensive Income (Loss)	into Income
		Comprehensive Income (Loss)								into Income	(effective portion)
		(effective portion)								(effective portion)
		2013				2012					2013			2012
	Cash Flow Hedges – Designated as hedging instruments
	Foreign exchange forward contracts	$	(278,285	)		$	80,020			Cost of revenues	$	(91,848	)	$	(56,621	)
										Selling, general and administrative expenses	(19,357		)	(12,134		)
										Total	$	(111,205	)	$	(68,755	)
	The activity related to the change in net unrealized (losses) on our cash flow hedges included in accumulated other comprehensive income (loss) is presented in Note 9.
	Other Derivatives
	We use foreign exchange forward contracts, which have not been designated as hedges, to hedge balance sheet exposure to certain monetary assets and liabilities denominated in currencies other than the functional currency of our foreign subsidiaries. We entered into a series of foreign exchange forward contracts scheduled to mature in 2013 and 2014 which are primarily to purchase U.S. dollars and sell Indian rupees. Realized gains or losses and changes in the estimated fair value of these derivative financial instruments are recorded in Other, net in our consolidated statements of operations.
	Additional information related to our outstanding contracts is as follows:
		30-Sep-13				31-Dec-12
	Notional value of contracts outstanding	$	227,528			$	208,571
	The following table provides information on the location and amounts of realized and unrealized pre-tax gains and losses on our other derivative financial instruments for the three and nine months ended September 30, 2013 and 2012:
		Location of Net Gains  (Losses) on		Amount of Net Gains (Losses) on Derivative Instruments
		Derivative Instruments
				Three Months Ended							Nine Months Ended
				September 30,							September  30,
			2013				2012			2013			2012
Other Derivatives – Not designated as hedging instruments
Foreign exchange forward contracts	Other, net		$	7,126			$	(12,535	)	$	22,096		$	(12,271	)
The related cash flow impacts of all of our derivative activities are reflected as cash flows from operating activities.

Commitments_And_Contingencies

Commitments And Contingencies	9 Months Ended
	Sep. 30, 2013
Commitments and Contingencies Disclosure [Abstract]	'
Commitments And Contingencies	'
	Commitments and Contingencies
	Our current India real estate development program includes planned construction of 10.5 million square feet of new space between 2011 and the end of 2015. This program includes the expected expenditure of over $700,000 during this period on land acquisition, facilities construction and furnishings to build new company-owned state-of-the-art IT development and delivery centers in regions primarily designated as SEZs located in India. As of September 30, 2013, we had outstanding fixed capital commitments of approximately $93,111 related to our India development center expansion program.
	We are involved in various claims and legal actions arising in the ordinary course of business. In the opinion of management, the outcome of such claims and legal actions, if decided adversely, is not expected to have a material adverse effect on our business, financial condition, results of operations and cash flows. Additionally, many of our engagements involve projects that are critical to the operations of our customers’ business and provide benefits that are difficult to quantify. Any failure in a customer’s systems or our failure to meet our contractual obligations to our clients, including any breach involving a customer’s confidential information or sensitive data, or our obligations under applicable laws or regulations could result in a claim for substantial damages against us, regardless of our responsibility for such failure. Although we attempt to contractually limit our liability for damages arising from negligent acts, errors, mistakes, or omissions in rendering our services, there can be no assurance that the limitations of liability set forth in our contracts will be enforceable in all instances or will otherwise protect us from liability for damages. Although we have general liability insurance coverage, including coverage for errors or omissions, there can be no assurance that such coverage will cover all types of claims, continue to be available on reasonable terms or will be available in sufficient amounts to cover one or more large claims, or that the insurer will not disclaim coverage as to any future claim. The successful assertion of one or more large claims against us that exceed or are not covered by our insurance coverage or changes in our insurance policies, including premium increases or the imposition of large deductible or co-insurance requirements, could have a material adverse effect on our business, results of operations, financial condition and cash flows.
	In the normal course of business and in conjunction with certain client engagements, we have entered into contractual arrangements through which we may be obligated to indemnify clients or other parties with whom we conduct business with respect to certain matters. These arrangements can include provisions whereby we agree to hold the indemnified party and certain of their affiliated entities harmless with respect to third-party claims related to such matters as our breach of certain representations or covenants, or out of our intellectual property infringement, our gross negligence or willful misconduct or certain other claims made against certain parties. Payments by us under any of these arrangements are generally conditioned on the client making a claim and providing us with full control over the defense and settlement of such claim. It is not possible to determine the maximum potential amount under these indemnification agreements due to the unique facts and circumstances involved in each particular agreement. Historically, we have not made payments under these indemnification agreements and therefore they have not had any impact on our operating results, financial position, or cash flows. However, if events arise requiring us to make payment for indemnification claims under our indemnification obligations in contracts we have entered, such payments could have material impact on our business, results of operations, financial condition and cash flows.

Accumulated_Other_Comprehensiv

Accumulated Other Comprehensive Income (Loss)	9 Months Ended
	Sep. 30, 2013
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]	'
Accumulated Other Comprehensive Income (Loss)	'
	Accumulated Other Comprehensive Income (Loss)
	Changes in accumulated other comprehensive income (loss) by component were as follows for the three and nine months ended September 30, 2013:
		Three Months									Nine Months
		Before Tax			Tax			Net of Tax			Before Tax			Tax			Net of Tax
		Amount			Effect			Amount			Amount			Effect			Amount
	Foreign currency translation adjustments
	Beginning balance	$	(8,591	)	$	—		$	(8,591	)	$	11,572		$	—		$	11,572
	Change in foreign currency translation adjustments	25,346			—			25,346			5,183			—			5,183
	Ending balance	$	16,755		$	—		$	16,755		$	16,755		$	—		$	16,755
	Unrealized gains (losses) on available-for-sale investment securities:
	Beginning balance	$	(1,717	)	$	605		$	(1,112	)	$	2,440		$	(885	)	$	1,555
	Unrealized gains (losses) arising during the period	2,080			(757		)	1,323			(1,396		)	488			(908		)
	Reclassification of (gains) to Other, net	(144		)	55			(89		)	(825		)	300			(525		)
	Net change	1,936			(702		)	1,234			(2,221		)	788			(1,433		)
	Ending balance	$	219		$	(97	)	$	122		$	219		$	(97	)	$	122
	Unrealized (losses) on cash flow hedges:
	Beginning balance	$	(372,509	)	$	57,610		$	(314,899	)	$	(296,595	)	$	43,785		$	(252,810	)
	Unrealized (losses) arising during the period	(149,916		)	23,185			(126,731		)	(278,285		)	45,064			(233,221		)
	Reclassifications of losses to:
	Cost of revenues	48,755			(7,540		)	41,215			91,848			(14,158		)	77,690
	Selling, general and administrative expenses	9,995			(1,546		)	8,449			19,357			(2,982		)	16,375
	Net change	(91,166		)	14,099			(77,067		)	(167,080		)	27,924			(139,156		)
	Ending balance	$	(463,675	)	$	71,709		$	(391,966	)	$	(463,675	)	$	71,709		$	(391,966	)
	Accumulated other comprehensive income (loss):
	Beginning balance	$	(382,817	)	$	58,215		$	(324,602	)	$	(282,583	)	$	42,900		$	(239,683	)
	Other comprehensive income (loss)	(63,884		)	13,397			(50,487		)	(164,118		)	28,712			(135,406		)
	Ending balance	$	(446,701	)	$	71,612		$	(375,089	)	$	(446,701	)	$	71,612		$	(375,089	)
	Changes in accumulated other comprehensive income (loss) by component were as follows for the three and nine months ended September 30, 2012:
		Three Months									Nine Months
		Before Tax			Tax			Net of Tax			Before Tax			Tax			Net of Tax
		Amount			Effect			Amount			Amount			Effect			Amount
	Foreign currency translation adjustments
	Beginning balance	$	(1,307	)	$	—		$	(1,307	)	$	(3,561	)	$	—		$	(3,561	)
	Change in foreign currency translation adjustments	6,669			—			6,669			8,923			—			8,923
	Ending balance	$	5,362		$	—		$	5,362		$	5,362		$	—		$	5,362
	Unrealized gains (losses) on available-for-sale investment securities:
	Beginning balance	$	2,118		$	(827	)	$	1,291		$	1,986		$	(780	)	$	1,206
	Unrealized gains arising during the period	2,432			(558		)	1,874			3,047			(789		)	2,258
	Reclassification of (gains) to Other, net	(698		)	304			(394		)	(1,181		)	488			(693		)
	Net change	1,734			(254		)	1,480			1,866			(301		)	1,565
	Ending balance	$	3,852		$	(1,081	)	$	2,771		$	3,852		$	(1,081	)	$	2,771
	Unrealized (losses) on cash flow hedges:
	Beginning balance	$	(474,175	)	$	77,450		$	(396,725	)	$	(385,640	)	$	62,601		$	(323,039	)
	Unrealized gains arising during the period	206,693			(33,760		)	172,933			80,020			(12,682		)	67,338
	Reclassifications of losses to:
	Cost of revenues	25,124			(4,104		)	21,020			56,621			(9,248		)	47,373
	Selling, general and administrative expenses	5,493			(897		)	4,596			12,134			(1,982		)	10,152
	Net change	237,310			(38,761		)	198,549			148,775			(23,912		)	124,863
	Ending balance	$	(236,865	)	$	38,689		$	(198,176	)	$	(236,865	)	$	38,689		$	(198,176	)
	Accumulated other comprehensive income (loss):
	Beginning balance	$	(473,364	)	$	76,623		$	(396,741	)	$	(387,215	)	$	61,821		$	(325,394	)
	Other comprehensive income (loss)	245,713			(39,015		)	206,698			159,564			(24,213		)	135,351
	Ending balance	$	(227,651	)	$	37,608		$	(190,043	)	$	(227,651	)	$	37,608		$	(190,043	)

Segment_Information

Segment Information	9 Months Ended
	Sep. 30, 2013
Segment Reporting Information, Revenue for Reportable Segment [Abstract]	'
Segment Information	'
	Segment Information
	Our reportable segments are: Financial Services, which includes customers providing banking/transaction processing, capital markets and insurance services; Healthcare, which includes healthcare providers and payers as well as life sciences customers; Manufacturing/Retail/Logistics, which includes manufacturers, retailers, travel and other hospitality customers, as well as customers providing logistics services; and Other, which is an aggregation of industry segments each of which, individually, represents less than 10% of consolidated revenues and segment operating profit. The Other reportable segment includes our information, media and entertainment services, communications and high technology operating segments. Our sales managers, account executives, account managers and project teams are aligned in accordance with the specific industries they serve.
	Our chief operating decision maker evaluates the Company’s performance and allocates resources based on segment revenues and operating profit. Segment operating profit is defined as income from operations before unallocated costs. Generally, operating expenses for each operating segment have similar characteristics and are subject to the same factors, pressures and challenges. However, the economic environment and its effects on industries served by our operating segments may affect revenue and operating expenses to differing degrees. Expenses included in segment operating profit consist principally of direct selling and delivery costs as well as a per seat charge for use of the development and delivery centers. Certain selling, general and administrative expenses, excess or shortfall of incentive compensation for delivery personnel as compared to target, stock-based compensation expense, a portion of depreciation and amortization and the impact of the settlements of our cash flow hedges are not allocated to individual segments in internal management reports used by the chief operating decision maker. Accordingly, such expenses are excluded from segment operating profit and are separately disclosed as “unallocated” and adjusted only against our total income from operations. Additionally, management has determined that it is not practical to allocate identifiable assets by segment, since such assets are used interchangeably among the segments.
	Revenues from external customers and segment operating profit, before unallocated expenses, for the Financial Services, Healthcare, Manufacturing/Retail/Logistics, and Other reportable segments were as follows:
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2013		2012		2013		2012
	Revenues:
	Financial Services	$	954,379	$	788,439	$	2,720,427	$	2,220,048
	Healthcare	599,947		483,109		1,651,540		1,434,808
	Manufacturing/Retail/Logistics	490,622		396,557		1,378,062		1,089,962
	Other	260,775		223,583		737,672		653,439
	Total revenue	$	2,305,723	$	1,891,688	$	6,487,701	$	5,398,257
	Segment Operating Profit:
	Financial Services	$	324,450	$	263,866	$	895,079	$	752,550
	Healthcare	230,145		171,365		612,210		543,215
	Manufacturing/Retail/Logistics	177,075		140,142		466,485		394,053
	Other	86,959		77,156		238,611		219,036
	Total segment operating profit	818,629		652,529		2,212,385		1,908,854
	Less: unallocated costs(1)	381,270		297,143		982,316		903,611
	Income from operations	$	437,359	$	355,386	$	1,230,069	$	1,005,243
	_____________________
	-1	Includes $27,023 and $86,353 of stock-based compensation expense for the three and nine months ended September 30, 2013, respectively, and $22,261 and $79,911 of stock-based compensation expense for the three and nine months ended September 30, 2012, respectively.
	Geographic Area Information
	Revenue and long-lived assets, by geographic area, are as follows:
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2013		2012		2013		2012
	Revenues: (1)
	North America(2)	$	1,783,081	$	1,504,706	$	5,042,666	$	4,300,399
	Europe(3)	414,656		302,648		1,150,140		869,254
	Other(4)	107,986		84,334		294,895		228,604
	Total	$	2,305,723	$	1,891,688	$	6,487,701	$	5,398,257
		As of
		September 30,		December 31,
		2013		2012
	Long-lived Assets: (5)
	North America(2)	$	53,402	$	52,149
	Europe	15,826		8,696
	Other(4)(6)	942,575		910,641
	Total	$	1,011,803	$	971,486
	_____________________
	(1)    Revenues are attributed to regions based upon customer location.
	(2)    Substantially all relates to operations in the United States.
	-3	Includes revenue from operations in the United Kingdom of $246,397 and $195,538 for the three months and $696,650 and $558,854 for the nine months ended September 30, 2013 and 2012, respectively.
	(4)    Includes our operations in Asia Pacific, the Middle East and Latin America.
	(5)    Long-lived assets include property and equipment, net of accumulated depreciation and amortization.
	(6)    Substantially all of these long-lived assets relate to our operations in India.

Recent_Accounting_Pronouncemen

Recent Accounting Pronouncements	9 Months Ended
	Sep. 30, 2013
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]	'
Recent Accounting Pronouncements	'
	Recent Accounting Pronouncements
	In July 2013, the Financial Accounting Standards Board, or FASB, issued new guidance which requires the netting of any unrecognized tax benefits against all available same-jurisdiction deferred tax carryforward assets that would apply if the uncertain tax positions were settled. This standard will be effective for periods beginning on or after January 1, 2014. The adoption of this standard affects financial statement presentation only and will have no effect on our financial condition or consolidated results of operations.
	In February 2013, the FASB issued additional guidance related to accumulated other comprehensive income, requiring the presentation of significant amounts reclassified out of accumulated other comprehensive income to the respective line items in the statement of operations. For those amounts required by U.S. GAAP to be reclassified to earnings in their entirety in the same reporting period, this presentation is required either on the statement of operations or in a single footnote. For items that are not required to be reclassified in their entirety to earnings, the presentation requirement can be met by cross-referencing disclosures elsewhere in the footnotes. We adopted this standard on January 1, 2013. The adoption of this standard affects financial statement presentation only and has no effect on our financial condition or consolidated results of operations.
	In December 2011, the FASB issued guidance requiring enhanced disclosures related to the nature of an entity’s rights to offset and any related arrangements associated with its financial instruments and derivative instruments. The new guidance requires the disclosure of the gross amounts subject to rights of set-off, amounts offset in accordance with the accounting standards followed and the related net exposure. In January 2013, the FASB issued an additional update clarifying the scope of this guidance. We adopted this standard on January 1, 2013. The adoption of this standard affects financial statement disclosures only and has no effect on our financial condition or consolidated results of operations.

Business_Combination_Tables

Business Combination (Tables)	9 Months Ended
	Sep. 30, 2013
Business Combinations [Abstract]	'
Schedule Of Purchase Price Allocation	'
	We have allocated the purchase price related to these transactions to tangible and intangible assets and liabilities, including non-deductible goodwill, based on their fair values as described in the table below:
		Fair Value		Useful Life
	Total consideration, net of cash acquired	$	146,600
	Purchase price allocated to:
	Non-deductible goodwill	105,801
	Customer relationship intangible asset	43,831		10 years
	Other intangible assets	3,067		2-5 years

Investments_Tables

Investments (Tables)	9 Months Ended
	Sep. 30, 2013
Investments [Abstract]	'
Investments	'
	Our investments were as follows:
		30-Sep-13			31-Dec-12
	Available-for-sale investment securities:
	U.S. Treasury and agency debt securities	$	532,709		$	551,236
	Corporate and other debt securities	257,341			294,556
	Asset-backed securities	157,021			97,112
	Municipal debt securities	85,135			47,292
	Mutual funds	21,124			21,150
	Total available-for-sale investment securities	1,053,330			1,011,346
	Time deposits	276,150			282,335
	Total investments	$	1,329,480		$	1,293,681
Amortized Cost, Gross Unrealized Gains And Losses And Fair Value Of Investment Securities Available-For-Sale	'
	The amortized cost, gross unrealized gains and losses and fair value of available-for-sale investment securities at September 30, 2013 were as follows:
		Amortized			Unrealized			Unrealized			Fair
		Cost			Gains			Losses			Value
	U.S. Treasury and agency debt securities	$	531,960		$	881		$	(132	)	$	532,709
	Corporate and other debt securities	256,515			1,026			(200		)	257,341
	Asset-backed securities	157,329			91			(399		)	157,021
	Municipal debt securities	84,967			207			(39		)	85,135
	Mutual funds	22,340			191			(1,407		)	21,124
	Total available-for-sale investment securities	$	1,053,111		$	2,396		$	(2,177	)	$	1,053,330
	The amortized cost, gross unrealized gains and losses and fair value of available-for-sale investment securities at December 31, 2012 were as follows:
		Amortized			Unrealized			Unrealized			Fair
		Cost			Gains			Losses			Value
	U.S. Treasury and agency debt securities	$	550,317		$	972		$	(53	)	$	551,236
	Corporate and other debt securities	292,736			1,842			(22		)	294,556
	Asset-backed securities	97,004			237			(129		)	97,112
	Municipal debt securities	47,266			93			(67		)	47,292
	Mutual funds	21,583			—			(433		)	21,150
	Total available-for-sale investment securities	$	1,008,906		$	3,144		$	(704	)	$	1,011,346
Available-For-Sale Securities In A Continuous Unrealized Loss Position	'
	The fair value and related unrealized losses of available-for-sale investment securities in a continuous unrealized loss position for less than 12 months and for 12 months or longer were as follows as of September 30, 2013:
		Less than 12 Months						12 Months or More						Total
		Fair			Unrealized			Fair			Unrealized			Fair		Unrealized
		Value			Losses			Value			Losses			Value		Losses
	U.S. Treasury and agency debt securities	$	101,426		$	(132	)	$	—		$	—		$	101,426	$	(132	)
	Corporate and other debt securities	61,887			(200		)	—			—			61,887		(200		)
	Asset-backed securities	84,375			(386		)	4,567			(13		)	88,942		(399		)
	Municipal debt securities	13,967			(30		)	1,032			(9		)	14,999		(39		)
	Mutual funds	—			—			20,260			(1,407		)	20,260		(1,407		)
	Total	$	261,655		$	(748	)	$	25,859		$	(1,429	)	$	287,514	$	(2,177	)
	The fair value and related unrealized losses of available-for-sale investment securities in a continuous unrealized loss position for less than 12 months and for 12 months or longer were as follows as of December 31, 2012:
		Less than 12 Months						12 Months or More						Total
		Fair			Unrealized			Fair			Unrealized			Fair		Unrealized
		Value			Losses			Value			Losses			Value		Losses
	U.S. Treasury and agency debt securities	$	120,118		$	(53	)	$	—		$	—		$	120,118	$	(53	)
	Corporate and other debt securities	25,662			(21		)	699			(1		)	26,361		(22		)
	Asset-backed securities	27,180			(93		)	1,499			(36		)	28,679		(129		)
	Municipal debt securities	7,908			(32		)	696			(35		)	8,604		(67		)
	Mutual funds	21,150			(433		)	—			—			21,150		(433		)
	Total	$	202,018		$	(632	)	$	2,894		$	(72	)	$	204,912	$	(704	)
Contractual Maturities Of Investments In Debt Securities Available-For-Sale	'
	The contractual maturities of our fixed income available-for-sale investment securities as of September 30, 2013 are set forth in the following table:
		Amortized			Fair
		Cost			Value
	Due within one year	$	108,385		$	108,565
	Due after one year up to two years	402,345			403,330
	Due after two years up to three years	334,040			334,525
	Due after three years up to four years	28,672			28,765
	Asset-backed securities	157,329			157,021
	Fixed income available-for-sale investment securities	$	1,030,771		$	1,032,206
Gross Gains (Losses) Realized On Sales, Maturities And Other Securities Transactions Related To Investment Securities	'
	Proceeds from sales of available-for-sale investment securities and the gross gains and losses that have been included in earnings as a result of those sales were as follows:
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2013			2012			2013			2012
	Proceeds from sales of available-for-sale investment securities	$	211,696		$	207,229		$	871,696		$	559,095
	Gross gains	$	315		$	870		$	1,530		$	1,857
	Gross losses	(166		)	—			(553		)	(335		)
	Net realized gains on sales of available-for-sale investment securities	$	149		$	870		$	977		$	1,522

Accrued_Expenses_And_Other_Cur1

Accrued Expenses And Other Current Liabilities (Tables)	9 Months Ended
	Sep. 30, 2013
Accrued Expenses And Other Current Liabilities [Abstract]	'
Accrued Expenses And Other Current Liabilities	'
	Accrued expenses and other current liabilities were as follows:
		30-Sep-13		31-Dec-12
	Compensation and benefits	$	755,979	$	661,816
	Income taxes	34,385		29,570
	Professional fees	37,643		35,366
	Travel and entertainment	31,435		26,417
	Customer volume incentives	150,777		142,945
	Derivative financial instruments	226,117		130,923
	Deferred income taxes	83		454
	Other	108,857		91,436
	Total accrued expenses and other current liabilities	$	1,345,276	$	1,118,927

Income_Taxes_Tables

Income Taxes (Tables)	9 Months Ended
	Sep. 30, 2013
Income Tax Disclosure [Abstract]	'
Schedule Of Effective Income Tax Rates	'
	Our effective income tax rates were as follows:
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2013		2012		2013		2012
	Effective income tax rate	27.2	%	24	%	26.9	%	24.4	%

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2013
Fair Value Disclosures [Abstract]	'
Financial Assets And (Liabilities) Measured At Fair Value On A Recurring Basis	'
	The following table summarizes our financial assets and (liabilities) measured at fair value on a recurring basis as of September 30, 2013:
		Level 1		Level 2			Level 3		Total
	Cash equivalents:
	Money market funds	$	628,749	$	—		$	—	$	628,749
	Total cash equivalents	628,749		—			—		628,749
	Investments:
	Time deposits	—		276,150			—		276,150
	Available-for-sale investment securities:
	U.S. Treasury and agency debt securities	415,911		116,798			—		532,709
	Corporate and other debt securities	—		257,341			—		257,341
	Asset-backed securities	—		157,021			—		157,021
	Municipal debt securities	—		85,135			—		85,135
	Mutual funds	—		21,124			—		21,124
	Total available-for-sale investment securities	415,911		637,419			—		1,053,330
	Total investments	415,911		913,569			—		1,329,480
	Derivative financial instruments - foreign exchange forward contracts:
	Other current assets	—		17,425			—		17,425
	Accrued expenses and other current liabilities	—		(226,117		)	—		(226,117		)
	Other noncurrent liabilities	—		(237,627		)	—		(237,627		)
	Total	$	1,044,660	$	467,250		$	—	$	1,511,910
	The following table summarizes our financial assets and (liabilities) measured at fair value on a recurring basis as of December 31, 2012:
		Level 1		Level 2			Level 3		Total
	Cash equivalents:
	Money market funds	$	411,512	$	—		$	—	$	411,512
	Time deposits	—		300,770			—		300,770
	Commercial paper	—		7,918			—		7,918
	Total cash equivalents	411,512		308,688			—		720,200
	Investments:
	Time deposits	—		282,335			—		282,335
	Available-for-sale investment securities:
	U.S. Treasury and agency debt securities	392,067		159,169			—		551,236
	Corporate and other debt securities	—		294,556			—		294,556
	Asset-backed securities	—		97,112			—		97,112
	Municipal debt securities	—		47,292			—		47,292
	Mutual funds	—		21,150			—		21,150
	Total available-for-sale investment securities	392,067		619,279			—		1,011,346
	Total investments	392,067		901,614			—		1,293,681
	Derivative financial instruments - foreign exchange forward contracts:
	Other current assets	—		1,344			—		1,344
	Accrued expenses and other current liabilities	—		(130,923		)	—		(130,923		)
	Other noncurrent assets	—		3,436			—		3,436
	Other noncurrent liabilities	—		(175,628		)	—		(175,628		)
	Total	$	803,579	$	908,531		$	—	$	1,712,110

Derivative_Financial_Instrumen1

Derivative Financial Instruments (Tables)	9 Months Ended
	Sep. 30, 2013
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Location And Fair Values Of Derivative Financial Instruments In Our Condensed Consolidated Statements Of Financial Position	'
	The following table provides information on the location and fair values of derivative financial instruments included in our unaudited condensed consolidated statement of financial position as of:
				30-Sep-13							31-Dec-12
	Designation of Derivatives	Location on Statement of		Assets				Liabilities			Assets			Liabilities
		Financial Position
	Cash Flow Hedges – Designated as hedging instruments
	Foreign exchange forward contracts	Other current assets		$	—			$	—		$	1,230		$	—
		Other noncurrent assets		—				—			3,436			—
		Accrued expenses and other current liabilities		—				226,048			—			125,633
		Other noncurrent liabilities		—				237,627			—			175,628
		Total		—				463,675			4,666			301,261
	Other Derivatives – Not designated as hedging instruments
	Foreign exchange forward contracts	Other current assets		17,425				—			114			—
		Accrued expenses and other current liabilities		—				69			—			5,290
		Total		17,425				69			114			5,290
	Total			$	17,425			$	463,744		$	4,780		$	306,551
Notional Value Of Outstanding Cash Flow Hedge Contracts By Year Of Maturity And Net Unrealized (Loss) Gain Included In Accumulated Other Comprehensive Income (Loss)	'
	The notional value of our outstanding contracts by year of maturity and the net unrealized (loss) included in accumulated other comprehensive income (loss) for such contracts were as follows as of:
		30-Sep-13				31-Dec-12
	2013	$	315,000			$	1,253,000
	2014	1,200,000				1,200,000
	2015	900,000				780,000
	2016	240,000				120,000
	Total notional value of contracts outstanding	$	2,655,000			$	3,353,000
	Net unrealized (loss) included in accumulated other comprehensive income (loss), net of taxes	$	(391,966	)		$	(252,810	)
Location And Amounts Of Pre-Tax Gains (Losses) On Cash Flow Hedge Derivative Financial Instruments	'
	The following table provides information on the location and amounts of pre-tax (losses) on our cash flow hedges for the three months ended September 30:
		(Increase) Decrease in								Location of Net Derivative	Net (Loss) Reclassified
		Derivative								(Losses) Reclassified	from Accumulated Other
		Losses Recognized								from Accumulated Other	Comprehensive Income (Loss)
		in Accumulated Other								Comprehensive Income (Loss)	into Income
		Comprehensive Income (Loss)								into Income	(effective portion)
		(effective portion)								(effective portion)
		2013				2012					2013			2012
	Cash Flow Hedges – Designated as hedging instruments
	Foreign exchange forward contracts	$	(149,916	)		$	206,693			Cost of revenues	$	(48,755	)	$	(25,124	)
										Selling, general and administrative expenses	(9,995		)	(5,493		)
										Total	$	(58,750	)	$	(30,617	)
	The following table provides information on the location and amounts of pre-tax (losses) on our cash flow hedges for the nine months ended September 30:
		(Increase) Decrease in								Location of Net Derivative	Net (Loss) Reclassified
		Derivative								(Losses) Reclassified	from Accumulated Other
		Losses Recognized								from Accumulated Other	Comprehensive Income (Loss)
		in Accumulated Other								Comprehensive Income (Loss)	into Income
		Comprehensive Income (Loss)								into Income	(effective portion)
		(effective portion)								(effective portion)
		2013				2012					2013			2012
	Cash Flow Hedges – Designated as hedging instruments
	Foreign exchange forward contracts	$	(278,285	)		$	80,020			Cost of revenues	$	(91,848	)	$	(56,621	)
										Selling, general and administrative expenses	(19,357		)	(12,134		)
										Total	$	(111,205	)	$	(68,755	)
Additional Information Related To Outstanding Contracts Not Designated As Hedging Instruments	'
	Additional information related to our outstanding contracts is as follows:
		30-Sep-13				31-Dec-12
	Notional value of contracts outstanding	$	227,528			$	208,571
Location And Amounts Of Pre-Tax Gains (Losses) On Derivative Financial Instruments Not Designated As Hedges	'
	The following table provides information on the location and amounts of realized and unrealized pre-tax gains and losses on our other derivative financial instruments for the three and nine months ended September 30, 2013 and 2012:
		Location of Net Gains  (Losses) on		Amount of Net Gains (Losses) on Derivative Instruments
		Derivative Instruments
				Three Months Ended							Nine Months Ended
				September 30,							September  30,
				2013				2012			2013			2012
	Other Derivatives – Not designated as hedging instruments
	Foreign exchange forward contracts	Other, net		$	7,126			$	(12,535	)	$	22,096		$	(12,271	)

Accumulated_Other_Comprehensiv1

Accumulated Other Comprehensive Income (Loss) (Tables)	9 Months Ended
	Sep. 30, 2013
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]	'
Schedule Of Accumulated Other Comprehensive Income (Loss)	'
	Changes in accumulated other comprehensive income (loss) by component were as follows for the three and nine months ended September 30, 2013:
		Three Months									Nine Months
		Before Tax			Tax			Net of Tax			Before Tax			Tax			Net of Tax
		Amount			Effect			Amount			Amount			Effect			Amount
	Foreign currency translation adjustments
	Beginning balance	$	(8,591	)	$	—		$	(8,591	)	$	11,572		$	—		$	11,572
	Change in foreign currency translation adjustments	25,346			—			25,346			5,183			—			5,183
	Ending balance	$	16,755		$	—		$	16,755		$	16,755		$	—		$	16,755
	Unrealized gains (losses) on available-for-sale investment securities:
	Beginning balance	$	(1,717	)	$	605		$	(1,112	)	$	2,440		$	(885	)	$	1,555
	Unrealized gains (losses) arising during the period	2,080			(757		)	1,323			(1,396		)	488			(908		)
	Reclassification of (gains) to Other, net	(144		)	55			(89		)	(825		)	300			(525		)
	Net change	1,936			(702		)	1,234			(2,221		)	788			(1,433		)
	Ending balance	$	219		$	(97	)	$	122		$	219		$	(97	)	$	122
	Unrealized (losses) on cash flow hedges:
	Beginning balance	$	(372,509	)	$	57,610		$	(314,899	)	$	(296,595	)	$	43,785		$	(252,810	)
	Unrealized (losses) arising during the period	(149,916		)	23,185			(126,731		)	(278,285		)	45,064			(233,221		)
	Reclassifications of losses to:
	Cost of revenues	48,755			(7,540		)	41,215			91,848			(14,158		)	77,690
	Selling, general and administrative expenses	9,995			(1,546		)	8,449			19,357			(2,982		)	16,375
	Net change	(91,166		)	14,099			(77,067		)	(167,080		)	27,924			(139,156		)
	Ending balance	$	(463,675	)	$	71,709		$	(391,966	)	$	(463,675	)	$	71,709		$	(391,966	)
	Accumulated other comprehensive income (loss):
	Beginning balance	$	(382,817	)	$	58,215		$	(324,602	)	$	(282,583	)	$	42,900		$	(239,683	)
	Other comprehensive income (loss)	(63,884		)	13,397			(50,487		)	(164,118		)	28,712			(135,406		)
	Ending balance	$	(446,701	)	$	71,612		$	(375,089	)	$	(446,701	)	$	71,612		$	(375,089	)
	Changes in accumulated other comprehensive income (loss) by component were as follows for the three and nine months ended September 30, 2012:
		Three Months									Nine Months
		Before Tax			Tax			Net of Tax			Before Tax			Tax			Net of Tax
		Amount			Effect			Amount			Amount			Effect			Amount
	Foreign currency translation adjustments
	Beginning balance	$	(1,307	)	$	—		$	(1,307	)	$	(3,561	)	$	—		$	(3,561	)
	Change in foreign currency translation adjustments	6,669			—			6,669			8,923			—			8,923
	Ending balance	$	5,362		$	—		$	5,362		$	5,362		$	—		$	5,362
	Unrealized gains (losses) on available-for-sale investment securities:
	Beginning balance	$	2,118		$	(827	)	$	1,291		$	1,986		$	(780	)	$	1,206
	Unrealized gains arising during the period	2,432			(558		)	1,874			3,047			(789		)	2,258
	Reclassification of (gains) to Other, net	(698		)	304			(394		)	(1,181		)	488			(693		)
	Net change	1,734			(254		)	1,480			1,866			(301		)	1,565
	Ending balance	$	3,852		$	(1,081	)	$	2,771		$	3,852		$	(1,081	)	$	2,771
	Unrealized (losses) on cash flow hedges:
	Beginning balance	$	(474,175	)	$	77,450		$	(396,725	)	$	(385,640	)	$	62,601		$	(323,039	)
	Unrealized gains arising during the period	206,693			(33,760		)	172,933			80,020			(12,682		)	67,338
	Reclassifications of losses to:
	Cost of revenues	25,124			(4,104		)	21,020			56,621			(9,248		)	47,373
	Selling, general and administrative expenses	5,493			(897		)	4,596			12,134			(1,982		)	10,152
	Net change	237,310			(38,761		)	198,549			148,775			(23,912		)	124,863
	Ending balance	$	(236,865	)	$	38,689		$	(198,176	)	$	(236,865	)	$	38,689		$	(198,176	)
	Accumulated other comprehensive income (loss):
	Beginning balance	$	(473,364	)	$	76,623		$	(396,741	)	$	(387,215	)	$	61,821		$	(325,394	)
	Other comprehensive income (loss)	245,713			(39,015		)	206,698			159,564			(24,213		)	135,351
	Ending balance	$	(227,651	)	$	37,608		$	(190,043	)	$	(227,651	)	$	37,608		$	(190,043	)

Segment_Information_Tables

Segment Information (Tables)	9 Months Ended
	Sep. 30, 2013
Segment Reporting Information, Revenue for Reportable Segment [Abstract]	'
Revenues From External Customers And Segment Operating Profit	'
	Revenues from external customers and segment operating profit, before unallocated expenses, for the Financial Services, Healthcare, Manufacturing/Retail/Logistics, and Other reportable segments were as follows:
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2013		2012		2013		2012
	Revenues:
	Financial Services	$	954,379	$	788,439	$	2,720,427	$	2,220,048
	Healthcare	599,947		483,109		1,651,540		1,434,808
	Manufacturing/Retail/Logistics	490,622		396,557		1,378,062		1,089,962
	Other	260,775		223,583		737,672		653,439
	Total revenue	$	2,305,723	$	1,891,688	$	6,487,701	$	5,398,257
	Segment Operating Profit:
	Financial Services	$	324,450	$	263,866	$	895,079	$	752,550
	Healthcare	230,145		171,365		612,210		543,215
	Manufacturing/Retail/Logistics	177,075		140,142		466,485		394,053
	Other	86,959		77,156		238,611		219,036
	Total segment operating profit	818,629		652,529		2,212,385		1,908,854
	Less: unallocated costs(1)	381,270		297,143		982,316		903,611
	Income from operations	$	437,359	$	355,386	$	1,230,069	$	1,005,243
	_____________________
	-1	Includes $27,023 and $86,353 of stock-based compensation expense for the three and nine months ended September 30, 2013, respectively, and $22,261 and $79,911 of stock-based compensation expense for the three and nine months ended September 30, 2012, respectively.
Revenues And Long-Lived Assets By Geographic Area	'
	Revenue and long-lived assets, by geographic area, are as follows:
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2013		2012		2013		2012
	Revenues: (1)
	North America(2)	$	1,783,081	$	1,504,706	$	5,042,666	$	4,300,399
	Europe(3)	414,656		302,648		1,150,140		869,254
	Other(4)	107,986		84,334		294,895		228,604
	Total	$	2,305,723	$	1,891,688	$	6,487,701	$	5,398,257
		As of
		September 30,		December 31,
		2013		2012
	Long-lived Assets: (5)
	North America(2)	$	53,402	$	52,149
	Europe	15,826		8,696
	Other(4)(6)	942,575		910,641
	Total	$	1,011,803	$	971,486
	_____________________
	(1)    Revenues are attributed to regions based upon customer location.
	(2)    Substantially all relates to operations in the United States.
	-3	Includes revenue from operations in the United Kingdom of $246,397 and $195,538 for the three months and $696,650 and $558,854 for the nine months ended September 30, 2013 and 2012, respectively.
	(4)    Includes our operations in Asia Pacific, the Middle East and Latin America.
	(5)    Long-lived assets include property and equipment, net of accumulated depreciation and amortization.
	(6)    Substantially all of these long-lived assets relate to our operations in India.

Interim_Condensed_Consolidated1

Interim Condensed Consolidated Financial Statements (Details) (USD $)	9 Months Ended	1 Months Ended
	Sep. 30, 2013	30-May-13	30-May-13
	Common Class A [Member]	Existing Repurchase Program [Member]	Amended Repurchase Program [Member]
Equity, Class of Treasury Stock [Line Items]	'	'	'
Stock repurcahse program, authorized amount	'	$1,000,000	$1,500,000
Stock repurchased during period, shares	2,045,592	'	'
Stock repurchased during period, value	$131,561,000	'	'

Business_Combination_Narrative

Business Combination (Narrative) (Details) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013
	entity
Business Combinations [Abstract]	'
Number of business combinations	2
Total consideration, net of cash acquired	$146,600

Business_Combination_Schedule_

Business Combination (Schedule Of Purchase Price Allocation) (Details) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013
Business Acquisition [Line Items]	'
Total consideration, net of cash acquired	$146,600
Non-deductible goodwill	105,801
Customer Relationships [Member]	'
Business Acquisition [Line Items]	'
Intangible assets	43,831
Useful Life	'10 years
Other Intangible Assets [Member]	'
Business Acquisition [Line Items]	'
Intangible assets	$3,067
Minimum [Member] | Other Intangible Assets [Member]	'
Business Acquisition [Line Items]	'
Useful Life	'2 years
Maximum [Member] | Other Intangible Assets [Member]	'
Business Acquisition [Line Items]	'
Useful Life	'5 years

Investments_Investments_Detail

Investments (Investments) (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]	'	'
Available-for-sale investment securities	$1,053,330	$1,011,346
Time deposits	276,150	282,335
Short-term Investments, Total	1,329,480	1,293,681
U.S. Treasury And Agency Debt Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Available-for-sale investment securities	532,709	551,236
Corporate And Other Debt Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Available-for-sale investment securities	257,341	294,556
Asset-Backed Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Available-for-sale investment securities	157,021	97,112
Municipal Debt Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Available-for-sale investment securities	85,135	47,292
Mutual Funds [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Available-for-sale investment securities	$21,124	$21,150

Investments_Amortized_Cost_Gro

Investments (Amortized Cost, Gross Unrealized Gains And Losses And Fair Value Of Investment Securities Available-For-Sale) (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	$1,053,111	$1,008,906
Unrealized Gains	2,396	3,144
Unrealized Losses	-2,177	-704
Fair Value	1,053,330	1,011,346
U.S. Treasury And Agency Debt Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	531,960	550,317
Unrealized Gains	881	972
Unrealized Losses	-132	-53
Fair Value	532,709	551,236
Corporate And Other Debt Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	256,515	292,736
Unrealized Gains	1,026	1,842
Unrealized Losses	-200	-22
Fair Value	257,341	294,556
Asset-Backed Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	157,329	97,004
Unrealized Gains	91	237
Unrealized Losses	-399	-129
Fair Value	157,021	97,112
Municipal Debt Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	84,967	47,266
Unrealized Gains	207	93
Unrealized Losses	-39	-67
Fair Value	85,135	47,292
Mutual Funds [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	22,340	21,583
Unrealized Gains	191	0
Unrealized Losses	-1,407	-433
Fair Value	$21,124	$21,150

Investments_AvailableForSale_S

Investments (Available-For-Sale Securities In A Continuous Unrealized Loss Position) (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]	'	'
Fair Value available-for-sale securities Less than 12 Months	$261,655	$202,018
Unrealized Losses available-for-sale securities Less than 12 Months	-748	-632
Fair value available-for-sale securities 12 Months or More	25,859	2,894
Unrealized Losses available-for-sale securities 12 Months or More	-1,429	-72
Total Fair Value available-for-sale securities	287,514	204,912
Total Unrealized Losses of available-for-sale securities	-2,177	-704
U.S. Treasury And Agency Debt Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Fair Value available-for-sale securities Less than 12 Months	101,426	120,118
Unrealized Losses available-for-sale securities Less than 12 Months	-132	-53
Fair value available-for-sale securities 12 Months or More	0	0
Unrealized Losses available-for-sale securities 12 Months or More	0	0
Total Fair Value available-for-sale securities	101,426	120,118
Total Unrealized Losses of available-for-sale securities	-132	-53
Corporate And Other Debt Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Fair Value available-for-sale securities Less than 12 Months	61,887	25,662
Unrealized Losses available-for-sale securities Less than 12 Months	-200	-21
Fair value available-for-sale securities 12 Months or More	0	699
Unrealized Losses available-for-sale securities 12 Months or More	0	-1
Total Fair Value available-for-sale securities	61,887	26,361
Total Unrealized Losses of available-for-sale securities	-200	-22
Asset-Backed Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Fair Value available-for-sale securities Less than 12 Months	84,375	27,180
Unrealized Losses available-for-sale securities Less than 12 Months	-386	-93
Fair value available-for-sale securities 12 Months or More	4,567	1,499
Unrealized Losses available-for-sale securities 12 Months or More	-13	-36
Total Fair Value available-for-sale securities	88,942	28,679
Total Unrealized Losses of available-for-sale securities	-399	-129
Municipal Debt Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Fair Value available-for-sale securities Less than 12 Months	13,967	7,908
Unrealized Losses available-for-sale securities Less than 12 Months	-30	-32
Fair value available-for-sale securities 12 Months or More	1,032	696
Unrealized Losses available-for-sale securities 12 Months or More	-9	-35
Total Fair Value available-for-sale securities	14,999	8,604
Total Unrealized Losses of available-for-sale securities	-39	-67
Mutual Funds [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Fair Value available-for-sale securities Less than 12 Months	0	21,150
Unrealized Losses available-for-sale securities Less than 12 Months	0	-433
Fair value available-for-sale securities 12 Months or More	20,260	0
Unrealized Losses available-for-sale securities 12 Months or More	-1,407	0
Total Fair Value available-for-sale securities	20,260	21,150
Total Unrealized Losses of available-for-sale securities	($1,407)	($433)

Investments_Contractual_Maturi

Investments (Contractual Maturities Of Investments In Debt Securities Available-For-Sale) (Details) (USD $)	Sep. 30, 2013
In Thousands, unless otherwise specified
Amortized Cost	'
Due within one year	$108,385
Due after one year up to two years	402,345
Due after two years up to three years	334,040
Due after three years up to four years	28,672
Asset-backed securities	157,329
Amortized Cost	1,030,771
Fair Value	'
Due within one year	108,565
Due after one year up to two years	403,330
Due after two years up to three years	334,525
Due after three years up to four years	28,765
Asset-backed securities	157,021
Fair Value	$1,032,206

Investments_Gross_Gains_Losses

Investments (Gross Gains (Losses) Realized On Sales, Maturities And Other Securities Transactions Related To Investment Securities) (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Investments [Abstract]	'	'	'	'
Proceeds from sales of available-for-sale investment securities	$211,696	$207,229	$871,696	$559,095
Gross gains	315	870	1,530	1,857
Gross losses	-166	0	-553	-335
Net gains on sales of available-for-sale investment securities	$149	$870	$977	$1,522

Accrued_Expenses_And_Other_Cur2

Accrued Expenses And Other Current Liabilities (Accrued Expenses And Other Current Liabilities) (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Accrued Expenses And Other Current Liabilities [Abstract]	'	'
Compensation and benefits	$755,979	$661,816
Income taxes	34,385	29,570
Professional fees	37,643	35,366
Travel and entertainment	31,435	26,417
Customer volume incentives	150,777	142,945
Derivative financial instruments	226,117	130,923
Deferred income taxes	83	454
Other	108,857	91,436
Total accrued expenses and other current liabilities	$1,345,276	$1,118,927

Income_Taxes_Narrative_Details

Income Taxes (Narrative) (Details)	9 Months Ended
	Sep. 30, 2013
Income Tax Disclosure [Abstract]	'
Incentive period for SEZs, years	'15 years
Current MAT rate	20.00%

Income_Taxes_Schedule_Of_Effec

Income Taxes (Schedule Of Effective Tax Rate) (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Income Tax Disclosure [Abstract]	'	'	'	'
Effective income tax rate	27.20%	24.00%	26.90%	24.40%

Fair_Value_Measurements_Financ

Fair Value Measurements (Financial Assets And (Liabilities) Measured At Fair Value On A Recurring Basis) (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash Equivalents	$628,749	$720,200
Investments	1,329,480	1,293,681
Total	1,511,910	1,712,110
Money Market Funds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash Equivalents	628,749	411,512
Time Deposits [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash Equivalents	'	300,770
Investments	276,150	282,335
Commercial Paper [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash Equivalents	'	7,918
Available-For-Sale Investment Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments	1,053,330	1,011,346
Available-For-Sale Investment Securities [Member] | U.S. Treasury And Agency Debt Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments	532,709	551,236
Available-For-Sale Investment Securities [Member] | Corporate And Other Debt Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments	257,341	294,556
Available-For-Sale Investment Securities [Member] | Asset-Backed Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments	157,021	97,112
Available-For-Sale Investment Securities [Member] | Municipal Debt Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments	85,135	47,292
Available-For-Sale Investment Securities [Member] | Mutual Funds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments	21,124	21,150
Foreign Exchange Forward Contracts [Member] | Other Current Assets [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative financial instruments, assets	17,425	1,344
Foreign Exchange Forward Contracts [Member] | Accrued Expense And Other Current Liabilities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative financial instruments, liabilities	-226,117	-130,923
Foreign Exchange Forward Contracts [Member] | Other Noncurrent Assets [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative financial instruments, assets	'	3,436
Foreign Exchange Forward Contracts [Member] | Other Noncurrent Liabilities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative financial instruments, liabilities	-237,627	-175,628
Level 1 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash Equivalents	628,749	411,512
Investments	415,911	392,067
Total	1,044,660	803,579
Level 1 [Member] | Money Market Funds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash Equivalents	628,749	411,512
Level 1 [Member] | Time Deposits [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash Equivalents	'	'
Investments	0	'
Level 1 [Member] | Commercial Paper [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash Equivalents	'	'
Level 1 [Member] | Available-For-Sale Investment Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments	415,911	392,067
Level 1 [Member] | Available-For-Sale Investment Securities [Member] | U.S. Treasury And Agency Debt Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments	415,911	392,067
Level 1 [Member] | Available-For-Sale Investment Securities [Member] | Corporate And Other Debt Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments	0	'
Level 1 [Member] | Available-For-Sale Investment Securities [Member] | Asset-Backed Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments	0	'
Level 1 [Member] | Available-For-Sale Investment Securities [Member] | Municipal Debt Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments	0	'
Level 1 [Member] | Available-For-Sale Investment Securities [Member] | Mutual Funds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments	0	'
Level 1 [Member] | Foreign Exchange Forward Contracts [Member] | Other Current Assets [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative financial instruments, assets	0	'
Level 1 [Member] | Foreign Exchange Forward Contracts [Member] | Accrued Expense And Other Current Liabilities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative financial instruments, liabilities	0	'
Level 1 [Member] | Foreign Exchange Forward Contracts [Member] | Other Noncurrent Assets [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative financial instruments, assets	'	'
Level 1 [Member] | Foreign Exchange Forward Contracts [Member] | Other Noncurrent Liabilities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative financial instruments, liabilities	0	'
Level 2 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash Equivalents	0	308,688
Investments	913,569	901,614
Total	467,250	908,531
Level 2 [Member] | Money Market Funds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash Equivalents	0	'
Level 2 [Member] | Time Deposits [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash Equivalents	'	300,770
Investments	276,150	282,335
Level 2 [Member] | Commercial Paper [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash Equivalents	'	7,918
Level 2 [Member] | Available-For-Sale Investment Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments	637,419	619,279
Level 2 [Member] | Available-For-Sale Investment Securities [Member] | U.S. Treasury And Agency Debt Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments	116,798	159,169
Level 2 [Member] | Available-For-Sale Investment Securities [Member] | Corporate And Other Debt Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments	257,341	294,556
Level 2 [Member] | Available-For-Sale Investment Securities [Member] | Asset-Backed Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments	157,021	97,112
Level 2 [Member] | Available-For-Sale Investment Securities [Member] | Municipal Debt Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments	85,135	47,292
Level 2 [Member] | Available-For-Sale Investment Securities [Member] | Mutual Funds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments	21,124	21,150
Level 2 [Member] | Foreign Exchange Forward Contracts [Member] | Other Current Assets [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative financial instruments, assets	17,425	1,344
Level 2 [Member] | Foreign Exchange Forward Contracts [Member] | Accrued Expense And Other Current Liabilities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative financial instruments, liabilities	-226,117	-130,923
Level 2 [Member] | Foreign Exchange Forward Contracts [Member] | Other Noncurrent Assets [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative financial instruments, assets	'	3,436
Level 2 [Member] | Foreign Exchange Forward Contracts [Member] | Other Noncurrent Liabilities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative financial instruments, liabilities	237,627	-175,628
Level 3 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash Equivalents	0	'
Investments	0	'
Total	0	'
Level 3 [Member] | Money Market Funds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash Equivalents	0	'
Level 3 [Member] | Time Deposits [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash Equivalents	'	'
Investments	0	'
Level 3 [Member] | Commercial Paper [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash Equivalents	'	'
Level 3 [Member] | Available-For-Sale Investment Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments	0	'
Level 3 [Member] | Available-For-Sale Investment Securities [Member] | U.S. Treasury And Agency Debt Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments	0	'
Level 3 [Member] | Available-For-Sale Investment Securities [Member] | Corporate And Other Debt Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments	0	'
Level 3 [Member] | Available-For-Sale Investment Securities [Member] | Asset-Backed Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments	0	'
Level 3 [Member] | Available-For-Sale Investment Securities [Member] | Municipal Debt Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments	0	'
Level 3 [Member] | Available-For-Sale Investment Securities [Member] | Mutual Funds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments	0	'
Level 3 [Member] | Foreign Exchange Forward Contracts [Member] | Other Current Assets [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative financial instruments, assets	0	'
Level 3 [Member] | Foreign Exchange Forward Contracts [Member] | Accrued Expense And Other Current Liabilities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative financial instruments, liabilities	0	'
Level 3 [Member] | Foreign Exchange Forward Contracts [Member] | Other Noncurrent Assets [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative financial instruments, assets	'	'
Level 3 [Member] | Foreign Exchange Forward Contracts [Member] | Other Noncurrent Liabilities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative financial instruments, liabilities	$0	'

Derivative_Financial_Instrumen2

Derivative Financial Instruments (Narrative) (Details) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Cash flow hedge losses expected to be reclassified to earnings within the next 12 months	$191,089
Cash flow hedge ineffectiveness is immaterial	'Hedge ineffectiveness was immaterial for all periods presented.

Derivative_Financial_Instrumen3

Derivative Financial Instruments (Location And Fair Values Of Derivative Financial Instruments In Our Consolidated Statement Of Financial Position) (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Derivatives, Fair Value [Line Items]	'	'
Derivative assets fair value	$17,425	$4,780
Derivative liabilities fair value	463,744	306,551
Cash Flow Hedges [Member] | Designated as Hedging Instrument [Member] | Foreign Exchange Forward Contracts [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Derivative assets fair value	0	4,666
Derivative liabilities fair value	463,675	301,261
Cash Flow Hedges [Member] | Designated as Hedging Instrument [Member] | Foreign Exchange Forward Contracts [Member] | Other Current Assets [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Derivative assets fair value	0	1,230
Cash Flow Hedges [Member] | Designated as Hedging Instrument [Member] | Foreign Exchange Forward Contracts [Member] | Other Noncurrent Assets [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Derivative assets fair value	0	3,436
Cash Flow Hedges [Member] | Designated as Hedging Instrument [Member] | Foreign Exchange Forward Contracts [Member] | Accrued Expense And Other Current Liabilities [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Derivative liabilities fair value	226,048	125,633
Cash Flow Hedges [Member] | Designated as Hedging Instrument [Member] | Foreign Exchange Forward Contracts [Member] | Other Noncurrent Liabilities [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Derivative liabilities fair value	237,627	175,628
Other Derivatives [Member] | Not Designated as Hedging Instrument [Member] | Foreign Exchange Forward Contracts [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Derivative assets fair value	17,425	114
Derivative liabilities fair value	69	5,290
Other Derivatives [Member] | Not Designated as Hedging Instrument [Member] | Foreign Exchange Forward Contracts [Member] | Other Current Assets [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Derivative assets fair value	17,425	114
Other Derivatives [Member] | Not Designated as Hedging Instrument [Member] | Foreign Exchange Forward Contracts [Member] | Accrued Expense And Other Current Liabilities [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Derivative liabilities fair value	$69	$5,290

Derivative_Financial_Instrumen4

Derivative Financial Instruments (Notional Value Of Outstanding Cash Flow Hedge Contracts By Year Of Maturity And Net Unrealized (Loss) Gain Included In Accumulated Other Comprehensive Income) (Details) (USD $)	Sep. 30, 2013	Jun. 30, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Dec. 31, 2011
In Thousands, unless otherwise specified
Derivative [Line Items]	'	'	'	'	'	'
Notional value of contracts outstanding	$2,655,000	'	$3,353,000	'	'	'
Net unrealized (loss) included in accumulated other comprehensive income (loss), net of taxes	-391,966	-314,899	-252,810	-198,176	-396,725	-323,039
2013 [Member]	'	'	'	'	'	'
Derivative [Line Items]	'	'	'	'	'	'
Notional value of contracts outstanding	315,000	'	1,253,000	'	'	'
2014 [Member]	'	'	'	'	'	'
Derivative [Line Items]	'	'	'	'	'	'
Notional value of contracts outstanding	1,200,000	'	1,200,000	'	'	'
2015 [Member]	'	'	'	'	'	'
Derivative [Line Items]	'	'	'	'	'	'
Notional value of contracts outstanding	900,000	'	780,000	'	'	'
2016 [Member]	'	'	'	'	'	'
Derivative [Line Items]	'	'	'	'	'	'
Notional value of contracts outstanding	$240,000	'	$120,000	'	'	'

Derivative_Financial_Instrumen5

Derivative Financial Instruments (Location And Amounts Of Pre-Tax Gains (Losses) On Cash Flow Hedge Derivatives Financial Instruments) (Details) (Cash Flow Hedges [Member], USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'
Net (Loss) Reclassified from Accumulated Other Comprehensive Income (Loss) into Income (effective portion)	($58,750)	($30,617)	($111,205)	($68,755)
Cost Of Revenues [Member]	'	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'
Net (Loss) Reclassified from Accumulated Other Comprehensive Income (Loss) into Income (effective portion)	-48,755	-25,124	-91,848	-56,621
Selling, General And Administrative Expense [Member]	'	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'
Net (Loss) Reclassified from Accumulated Other Comprehensive Income (Loss) into Income (effective portion)	-9,995	-5,493	-19,357	-12,134
Foreign Exchange Forward Contracts [Member]	'	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'
Increase (decrease) in Derivative Gains (Losses) Recognized in Accumulated Other Comprehensive Income (Loss) (effective portion)	($149,916)	$206,693	($278,285)	$80,020

Derivative_Financial_Instrumen6

Derivative Financial Instruments (Additional Information Related To Outstanding Contracts Not Designated As Hedging Instruments) (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'	'
Notional value of contracts outstanding	$227,528	$208,571

Derivative_Financial_Instrumen7

Derivative Financial Instruments (Location And Amounts Of Pre-Tax Gains (Losses) On Derivative Financial Instruments Not Designated As Hedges) (Details) (Not Designated as Hedging Instrument [Member], Foreign Exchange Forward Contracts [Member], Other Income (Expense), Net [Member], USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Not Designated as Hedging Instrument [Member] | Foreign Exchange Forward Contracts [Member] | Other Income (Expense), Net [Member]	'	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'
Amount of net gains (losses) on derivative instruments	$7,126	($12,535)	$22,096	($12,271)

Commitments_And_Contingencies_

Commitments And Contingencies (Narrative) (Details) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013
	sqft
Commitments and Contingencies Disclosure [Abstract]	'
Square footage of real estate development program	10,500,000
Land acquisition, facilities construction and furnishings	$700,000
Outstanding fixed capital commitments related to our India development center expansion program	$93,111

Accumulated_Other_Comprehensiv2

Accumulated Other Comprehensive Income (Loss) (Schedule Of Changes In Accumulated Other Comprehensive Income (Loss) By Component) (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Foreign Currency Translation Adjustment, Before Taxes [Roll Forward]	'	'	'	'
Foreign currency translation adjustments, beginning balance, before tax	($8,591)	($1,307)	$11,572	($3,561)
Change in foreign currency translation, before tax	25,346	6,669	5,183	8,923
Foreign currency translation adjustments, ending balance, before tax	16,755	5,362	16,755	5,362
Foreign Currency Translation Adjustment, Tax [Roll Forward]	'	'	'	'
Foreign currency translation adustment, beginning balance, tax	0	0	0	0
Change in foreign currency translation, tax	0	0	0	0
Foreign currency translation adustment, ending balance, tax	0	0	0	0
Foreign Currency Translation Adjustment, Net of Tax [Roll Forward]	'	'	'	'
Foreign currency translation adjustments, beginning balance, net of tax	-8,591	-1,307	11,572	-3,561
Change in foreign currency translation, net of tax	25,346	6,669	5,183	8,923
Foreign currency translation adjustments, ending balance, net of tax	16,755	5,362	16,755	5,362
Available-for-sale Securities Adjustment, Before Taxes [Roll Forward]	'	'	'	'
Unrealized gains (losses) on available-for-sale investment securities, beginning balance, before tax	-1,717	2,118	2,440	1,986
Unrealized (losses) gains arising on available-for-sale investment securities during the period, before tax	2,080	2,432	-1,396	3,047
Reclassification of (gains) to other, net on available-for-sale investment securities, before tax	-144	-698	-825	-1,181
Net change on available-for-sale investment securities, before tax	1,936	1,734	-2,221	1,866
Unrealized gains (losses) on available-for-sale investment securities, ending balance, before tax	219	3,852	219	3,852
Available-for-sale Securities Adjustment, Tax [Roll Forward]	'	'	'	'
Unrealized gains (losses) on available-for-sale investment securities, beginning balance, tax	605	-827	-885	-780
Unrealized (losses) gains arising on available-for-sale investment securities during the period, tax	-757	-558	488	-789
Reclassification of (gains) to other, net on available-for-sale investment securities, tax	55	304	300	488
Net change on available-for-sale investment securities, tax	-702	-254	788	-301
Unrealized gains (losses) on available-for-sale investment securities, ending balance, tax	-97	-1,081	-97	-1,081
Available-for-sale Securities Adjustment, Net of Tax [Roll Forward]	'	'	'	'
Unrealized gains (losses) on available-for-sale investment securities, beginning balance, net of tax	-1,112	1,291	1,555	1,206
Unrealized (losses) gains arising on available-for-sale investment securities during the period, net of tax	1,323	1,874	-908	2,258
Reclassification of (gains) to other, net on available-for-sale investment securities, net of tax	-89	-394	-525	-693
Net change on available-for-sale investment securities, net of tax	1,234	1,480	-1,433	1,565
Unrealized gains (losses) on available-for-sale investment securities, ending balance, net of tax	122	2,771	122	2,771
Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Before Taxes [Roll Forward]	'	'	'	'
Unrealized (losses) on cash flow hedges, beginning balance, before tax	-372,509	-474,175	-296,595	-385,640
Unrealized (losses) arising on cash flow hedges during the period, before tax	-149,916	206,693	-278,285	80,020
Net change on cash flow hedges, before tax	-91,166	237,310	-167,080	148,775
Unrealized (losses) on cash flow hedges, ending balance, before tax	-463,675	-236,865	-463,675	-236,865
Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Tax [Roll Forward]	'	'	'	'
Unrealized (losses) on cash flow hedges, beginning balance, tax	57,610	77,450	43,785	62,601
Unrealized (losses) arising on cash flow hedges during the period, tax	23,185	-33,760	45,064	-12,682
Net change on cash flow hedges, tax	14,099	-38,761	27,924	-23,912
Unrealized (losses) on cash flow hedges, ending balance, tax	71,709	38,689	71,709	38,689
Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax [Roll Forward]	'	'	'	'
Unrealized (losses) on cash flow hedges, beginning balance, net of tax	-314,899	-396,725	-252,810	-323,039
Unrealized (losses) arising on cash flow hedges during the period, net of tax	-126,731	172,933	-233,221	67,338
Net change on cash flow hedges, net of tax	-77,067	198,549	-139,156	124,863
Unrealized (losses) on cash flow hedges, ending balance, net of tax	-391,966	-198,176	-391,966	-198,176
Accumulated Other Comprehensive Income (Loss), Before Taxes [Roll Forward]	'	'	'	'
Accumulated other comprehensive income (loss), beginning balance, before tax	-382,817	-473,364	-282,583	-387,215
Other comprehensive income loss, before tax	-63,884	245,713	-164,118	159,564
Accumulated other comprehensive income (loss), ending balance, before tax	-446,701	-227,651	-446,701	-227,651
Accumulated Other Comprehensive Income (Loss), Tax [Roll Forward]	'	'	'	'
Accumulated other comprehensive income (loss), beginning balance, tax	58,215	76,623	42,900	61,821
Other comprehensive income loss, tax	13,397	-39,015	28,712	-24,213
Accumulated other comprehensive income (loss), ending balance, tax	71,612	37,608	71,612	37,608
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]	'	'	'	'
Accumulated other comprehensive income (loss), beginning balance, net of tax	-324,602	-396,741	-239,683	-325,394
Other comprehensive income (loss)	-50,487	206,698	-135,406	135,351
Accumulated other comprehensive income (loss), ending balance, net of tax	-375,089	-190,043	-375,089	-190,043
Cost Of Revenues [Member]	'	'	'	'
Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Before Taxes [Roll Forward]	'	'	'	'
Reclassifications of losses on cash flow hedges, before tax	48,755	25,124	91,848	56,621
Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Tax [Roll Forward]	'	'	'	'
Reclassification of losses on cash flow hedges, tax	-7,540	-4,104	-14,158	-9,248
Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax [Roll Forward]	'	'	'	'
Reclassification of losses on cash flow hedges, net of tax	41,215	21,020	77,690	47,373
Selling, General and Administrative Expenses [Member]	'	'	'	'
Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Before Taxes [Roll Forward]	'	'	'	'
Reclassifications of losses on cash flow hedges, before tax	9,995	5,493	19,357	12,134
Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Tax [Roll Forward]	'	'	'	'
Reclassification of losses on cash flow hedges, tax	-1,546	-897	-2,982	-1,982
Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax [Roll Forward]	'	'	'	'
Reclassification of losses on cash flow hedges, net of tax	$8,449	$4,596	$16,375	$10,152

Segment_Information_Narrative_

Segment Information (Narrative) (Details)	9 Months Ended
	Sep. 30, 2013
Segment Reporting Information, Revenue for Reportable Segment [Abstract]	'
Percentage of consolidated revenues and segment operating profit, maximum	10.00%

Segment_Information_Revenues_F

Segment Information (Revenues From External Customers And Segment Operating Profit) (Details) (USD $)	3 Months Ended				9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012
Segment Reporting Information [Line Items]	'		'		'		'
Revenues	$2,305,723	[1]	$1,891,688	[1]	$6,487,701	[1]	$5,398,257	[1]
Income from operations	437,359		355,386		1,230,069		1,005,243
Stock-based compensation expense	27,023		22,261		86,353		79,911
Financial Services [Member]	'		'		'		'
Segment Reporting Information [Line Items]	'		'		'		'
Revenues	954,379		788,439		2,720,427		2,220,048
Income from operations	324,450		263,866		895,079		752,550
Healthcare [Member]	'		'		'		'
Segment Reporting Information [Line Items]	'		'		'		'
Revenues	599,947		483,109		1,651,540		1,434,808
Income from operations	230,145		171,365		612,210		543,215
Manufacturing/Retail/Logistics [Member]	'		'		'		'
Segment Reporting Information [Line Items]	'		'		'		'
Revenues	490,622		396,557		1,378,062		1,089,962
Income from operations	177,075		140,142		466,485		394,053
Other Business Segments [Member]	'		'		'		'
Segment Reporting Information [Line Items]	'		'		'		'
Revenues	260,775		223,583		737,672		653,439
Income from operations	86,959		77,156		238,611		219,036
Operating Segments [Member]	'		'		'		'
Segment Reporting Information [Line Items]	'		'		'		'
Income from operations	818,629		652,529		2,212,385		1,908,854
Unallocated Amount To Segment [Member]	'		'		'		'
Segment Reporting Information [Line Items]	'		'		'		'
Less: unallocated costs	$381,270	[2]	$297,143	[2]	$982,316	[2]	$903,611	[2]
[1]	Revenues are attributed to regions based upon customer location.
[2]	Includes $27,023 and $86,353 of stock-based compensation expense for the three and nine months ended SeptemberB 30, 2013, respectively, and $22,261 and $79,911 of stock-based compensation expense for the three and nine months ended SeptemberB 30, 2012, respectively.

Segment_Information_Revenues_A

Segment Information (Revenues And Long-Lived Assets By Geographic Area) (Details) (USD $)	3 Months Ended				9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012		Dec. 31, 2012
Geographic Areas, Revenues	'		'		'		'		'
North America, Revenues	$1,783,081	[1],[2]	$1,504,706	[1],[2]	$5,042,666	[1],[2]	$4,300,399	[1],[2]	'
Total	2,305,723	[1]	1,891,688	[1]	6,487,701	[1]	5,398,257	[1]	'
Geographic Areas, Long-Lived Assets	'		'		'		'		'
North America, Long-lived Assets	53,402	[3]	'		53,402	[3]	'		52,149	[3]
Total	1,011,803	[3]	'		1,011,803	[3]	'		971,486	[3]
Europe [Member]	'		'		'		'		'
Geographic Areas, Revenues	'		'		'		'		'
Revenues	414,656	[1],[4]	302,648	[1],[4]	1,150,140	[1],[4]	869,254	[1],[4]	'
Geographic Areas, Long-Lived Assets	'		'		'		'		'
Long-lived Assets	15,826	[2],[3]	'		15,826	[2],[3]	'		8,696	[2],[3]
Other Regions [Member]	'		'		'		'		'
Geographic Areas, Revenues	'		'		'		'		'
Revenues	107,986	[1],[5]	84,334	[1],[5]	294,895	[1],[5]	228,604	[1],[5]	'
Geographic Areas, Long-Lived Assets	'		'		'		'		'
Long-lived Assets	942,575	[3],[5],[6]	'		942,575	[3],[5],[6]	'		910,641	[3],[5],[6]
United Kingdom [Member]	'		'		'		'		'
Geographic Areas, Revenues	'		'		'		'		'
Revenues	$246,397		$195,538		$696,650		$558,854		'
[1]	Revenues are attributed to regions based upon customer location.
[2]	Substantially all relates to operations in the United States.
[3]	Long-lived assets include property and equipment, net of accumulated depreciation and amortization.
[4]	Includes revenue from operations in the United Kingdom of $246,397 and $195,538 for the three months and $696,650 and $558,854 for the nine months ended SeptemberB 30, 2013 and 2012, respectively.
[5]	Includes our operations in Asia Pacific, the Middle East and Latin America.
[6]	Substantially all of these long-lived assets relate to our operations in India.