Fair Value of Financial Assets and Liabilities (Tables)

12 Months Ended

Dec. 31, 2011

		December 31, 2011
	Amortized Cost		Unrealized Gains		Unrealized (Losses)		Aggregate Fair Value
U.S. government and agency obligations	$	2,474,029	$	12,420	$	(1,488)	$	2,484,961
U.S. corporate debt securities		1,400,373		9,953		(2,573)		1,407,753
High yield corporate debt securities		442,723		12,498		(7,742)		447,479
Asset-backed securities		29,101		72		(25)		29,148
Municipal obligations		814,657		2,021		(597)		816,081
Auction rate securities		82,900		0		(8,304)		74,596
Foreign debt securities		984,696		5,185		(2,807)		987,074
Total fixed income securities		6,228,479		42,149		(23,536)		6,247,092
Publicly traded equity securities		58,199		6,802		0		65,001
Total	$	6,286,678	$	48,951	$	(23,536)	$	6,312,093

	December 31, 2010
	Amortized Cost		Unrealized Gains		Unrealized (Losses)		Aggregate Fair Value
U.S. government and agency obligations	$	1,737,782	$	11,286	$	(2,674)	$	1,746,394
U.S. corporate debt securities		1,239,325		13,608		(1,307)		1,251,626
High yield corporate debt securities		421,469		18,306		(1,943)		437,832
Asset-backed securities		34,730		152		(1)		34,881
Municipal obligations		1,095,338		3,829		(3,266)		1,095,901
Auction rate securities		155,950		-		(9,906)		146,044
Foreign debt securities		653,251		6,878		(714)		659,415
Total fixed income securities		5,337,845		54,059		(19,811)		5,372,093
Publicly traded equity securities		22,376		32,448		-		54,824
Total	$	5,360,221	$	86,507	$	(19,811)	$	5,426,917

Fair Value Hierarchy For Financial Assets And Liabilities Measured At Fair Value

		December 31, 2011
	Level 1		Level 2		Level 3		Total
Cash	$	3,096,275	$	-	$	-	$	3,096,275
Cash equivalents		1,424,761		10,000		-		1,434,761
U.S. government and agency obligations		1,179,280		1,305,681		-		2,484,961
U.S. corporate debt securities		-		1,407,753		-		1,407,753
High yield corporate debt securities		-		447,479		-		447,479
Asset-backed securities		-		29,148		-		29,148
Municipal obligations		-		816,081		-		816,081
Auction rate securities		-		-		74,596		74,596
Foreign debt securities		-		987,074		-		987,074
Publicly traded equity securities		65,001		-		-		65,001
Total cash and investments	$	5,765,317	$	5,003,216	$	74,596	$	10,843,129
Other items:
Foreign exchange derivative assets	$	-	$	23,372	$	-	$	23,372
Foreign exchange derivative liabilities		-		(27,741)		-		(27,741)
Commodity derivative liabilities		-		(3,093)		-		(3,093)
Interest rate swap contracts		-		(19,872)		-		(19,872)

		December 31, 2010
	Level 1		Level 2		Level 3		Total
Cash	$	1,534,786	$	-	$	-	$	1,534,786
Cash equivalents		2,522,172		62,180		-		2,584,352
U.S. government and agency obligations		993,165		753,229		-		1,746,394
U.S. corporate debt securities		-		1,251,626		-		1,251,626
High yield corporate debt securities		-		437,832		-		437,832
Asset-backed securities		-		34,881		-		34,881
Municipal obligations		-		1,095,901		-		1,095,901
Auction rate securities		-		-		146,044		146,044
Foreign debt securities		-		659,415		-		659,415
Publicly traded equity securities		54,824		-		-		54,824
Total cash and investments	$	5,104,947	$	4,295,064	$	146,044	$	9,546,055
Other items:
Foreign exchange derivative assets	$	-	$	19,655	$	-	$	19,655
Foreign exchange derivative liabilities		-		(21,975)		-		(21,975)
Commodity derivative liabilities		-		(647)		-		(647)
Interest rate swap contracts		-		(7,762)		-		(7,762)

Changes in Fair Value of Level 3 Financial Assets

	2011		2010
Balance, beginning of the year	$	146,044	$	234,452
Sales		0		(56,755)
Calls, at par value		(73,050)		(40,912)
(Increase) decrease in previously recognized unrealized losses included in other
comprehensive loss		1,602		9,259
Balance, end of the year	$	74,596	$	146,044

Unrealized Losses on Investments by Investment Category and Length of Time in Continuous Unrealized Loss Position

December 31, 2011	Less Than 12 Months		12 Months or Greater		Total
	Fair Value	Gross Unrealized Losses	Fair Value	Gross Unrealized Losses	Fair Value	Gross Unrealized Losses
U.S. government and agency obligations	$ 618,510	$ (1,434)	$ 2,107	$ (54)	$ 620,617	$ (1,488)
U.S. corporate debt securities	449,404	(2,573)	-	-	449,404	(2,573)
High yield corporate debt securities	131,112	(7,211)	840	(531)	131,952	(7,742)
Asset-backed securities	20,016	(24)	5	(1)	20,021	(25)
Municipal obligations	303,988	(566)	8,054	(31)	312,042	(597)
Auction rate securities	-	-	74,596	(8,304)	74,596	(8,304)
Foreign debt securities	372,531	(2,807)	-	-	372,531	(2,807)
Total	$ 1,895,561	$ (14,615)	$ 85,602	$ (8,921)	$ 1,981,163	$ (23,536)

December 31, 2010	Less Than 12 Months		12 Months or Greater		Total
	Fair Value	Gross Unrealized Losses	Fair Value	Gross Unrealized Losses	Fair Value	Gross Unrealized Losses
U.S. government and agency obligations	$ 491,897	$ (2,569)	$ 5,474	$ (105)	$ 497,371	$ (2,674)
U.S. corporate debt securities	291,157	(1,307)	-	-	291,157	(1,307)
High yield corporate debt securities	66,537	(1,943)	-	-	66,537	(1,943)
Asset-backed securities	6,998	-	5	(1)	7,003	(1)
Municipal obligations	599,814	(3,266)	-	-	599,814	(3,266)
Auction rate securities	-	-	146,044	(9,906)	146,044	(9,906)
Foreign debt securities	104,934	(714)	-	-	104,934	(714)
Total	$ 1,561,337	$ (9,799)	$ 151,523	$ (10,012)	$ 1,712,860	$ (19,811)

Contractual Maturities of Investments

	December 31, 2011
	Amortized		Aggregate
	Cost Basis		Fair Value
Due within one year	$	1,777,170	$	1,780,391
Due after 1 year through 5 years		3,697,240		3,714,177
Due after 5 years through 10 years		443,037		448,203
Due after 10 years		311,032		304,321
Total	$	6,228,479	$	6,247,092

- Definition

Tabular disclosure of the fair value measurement of assets using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets) and gains or losses recognized in other comprehensive income, and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issuances, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs), by class of asset.

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- Definition

Tabular disclosure of the fair value measurement of assets and liabilities which includes [financial] instruments measured at fair value that are classified in stockholders' equity. Such assets and liabilities may be measured on a recurring or nonrecurring basis. The disclosures which may be required or desired include: (1) for assets and liabilities measured on a recurring basis, disclosure may include: (a) the fair value measurements at the reporting date; (b) the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets or liabilities (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3); (c) for fair value measurements using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (i) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (ii) purchases, sales, issuances, and settlements (net); (iii) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs); (d) the amount of the total gains or losses for the period in subparagraph (c) (i) above included in earnings (or changes in net assets) that are attributable to the change in unrealized gains or losses relating to those assets and liabilities still held at the reporting date and a description of where those unrealized gains or losses are reported in the statement of income (or activities); (e) the valuation technique(s) used to measure fair value and a discussion of changes in valuation techniques, if any, during the period and (2) for assets and liabilities that are measured at fair value on a nonrecurring basis (for example, impaired assets) disclosure may include, in addition to (a) above: (a) the reasons for the fair value measurements recorded; (b) the same as (b) above; (c) for fair value measurements using significant unobservable inputs (Level 3), a description of the inputs and the information used to develop the inputs; and (d) the valuation technique(s) used to measure fair value and a discussion of changes, if any, in the valuation technique(s) used to measure similar assets and/or liabilities in prior periods. Where the quoted price in an active market for the identical liability is not available, the Level 1 input is the quoted price of an identical liability when traded as an asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19279-110258

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 157

-Paragraph 32

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 157

-Paragraph 33

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 107

-Paragraph 10

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19296-110258

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19207-110258

Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 157

-Paragraph 6

-Footnote 4

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19190-110258

+ Details