CONSOLIDATED STATEMENTS OF EQUITY (USD $) In Thousands, unless otherwise specified	3 Months Ended				12 Months Ended
	Dec. 31, 2011		Dec. 31, 2010		Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008
Net Income (Loss) Attributable to Parent	$ 174,088	[1]	$ 157,889	[2]	$ 598,810	$ 479,630	$ 123,512
Total equity	3,675,260		3,251,195		3,675,260	3,251,195	2,917,297	2,677,050
Consolidated net income (loss)					599,316	479,625	123,505
Translation adjustments					(49,384)	(21,110)	56,483
Unrealized gain on investment securities, net					(11,886)	5,501	22,844
Unrealized gain on interest rate swaps designated as cash flow hedges, net					(1,855)		1,132
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest					521,709	466,760	207,485
Other employee benefit plan, items, net					(14,482)	2,744	3,521
Amortization of stock-based compensation					39,225	34,613	33,017
Shares issued for stock-based compensation awards					46,665	8,057	4,234
Tax benefits related to stock-based compensation awards					7,548	1,178	(2,011)
Repurchases of common stock					(197,044)	(173,650)	(2,478)
Purchase of subsidiary shares from noncontrolling interest						(3,060)
Acquisition of noncontrolling interests					5,962
Common Stock [Member]
Total equity	125,382		125,337		125,382	125,337	125,287	125,048
Consolidated net income (loss)					0	0	0
Translation adjustments					0	0	0
Unrealized gain on investment securities, net					0	0	0
Unrealized gain on interest rate swaps designated as cash flow hedges, net					0		0
Other employee benefit plan, items, net					0	0	0
Amortization of stock-based compensation					0	0	0
Shares issued for stock-based compensation awards					45	50	239
Tax benefits related to stock-based compensation awards					0	0	0
Repurchases of common stock					0	0	0
Purchase of subsidiary shares from noncontrolling interest						0
Acquisition of noncontrolling interests					0
Additional Paid-in Capital [Member]
Total equity	1,076,275		1,063,461		1,076,275	1,063,461	1,056,704	1,035,302
Consolidated net income (loss)					0	0	0
Translation adjustments					0	0	0
Unrealized gain on investment securities, net					0	0	0
Unrealized gain on interest rate swaps designated as cash flow hedges, net					0		0
Other employee benefit plan, items, net					0	0	0
Amortization of stock-based compensation					39,225	34,613	33,017
Shares issued for stock-based compensation awards					(33,959)	(26,301)	(9,604)
Tax benefits related to stock-based compensation awards					7,548	1,178	(2,011)
Repurchases of common stock					0	0	0
Purchase of subsidiary shares from noncontrolling interest						(2,733)
Acquisition of noncontrolling interests					0
Treasury Stock [Member]
Total equity	(434,959)		(318,494)		(434,959)	(318,494)	(179,152)	(190,273)
Consolidated net income (loss)					0	0	0
Translation adjustments					0	0	0
Unrealized gain on investment securities, net					0	0	0
Unrealized gain on interest rate swaps designated as cash flow hedges, net					0		0
Other employee benefit plan, items, net					0	0	0
Amortization of stock-based compensation					0	0	0
Shares issued for stock-based compensation awards					80,579	34,308	13,599
Tax benefits related to stock-based compensation awards					0	0	0
Repurchases of common stock					(197,044)	(173,650)	(2,478)
Purchase of subsidiary shares from noncontrolling interest						0
Acquisition of noncontrolling interests					0
Retained Earnings [Member]
Net Income (Loss) Attributable to Parent							123,512
Total equity	2,772,957		2,174,147		2,772,957	2,174,147	1,694,517	1,571,005
Consolidated net income (loss)					598,810	479,630
Translation adjustments					0	0	0
Unrealized gain on investment securities, net					0	0	0
Unrealized gain on interest rate swaps designated as cash flow hedges, net					0		0
Other employee benefit plan, items, net					0	0	0
Amortization of stock-based compensation					0	0	0
Shares issued for stock-based compensation awards					0	0	0
Tax benefits related to stock-based compensation awards					0	0	0
Repurchases of common stock					0	0	0
Purchase of subsidiary shares from noncontrolling interest						0
Acquisition of noncontrolling interests					0
Accumulated Translation Adjustment [Member]
Total equity	158,550		207,914		158,550	207,914	229,019	172,528
Consolidated net income (loss)					0	0	0
Translation adjustments					(49,364)	(21,105)	56,491
Unrealized gain on investment securities, net					0	0	0
Unrealized gain on interest rate swaps designated as cash flow hedges, net					0		0
Other employee benefit plan, items, net					0	0	0
Amortization of stock-based compensation					0	0	0
Shares issued for stock-based compensation awards					0	0	0
Tax benefits related to stock-based compensation awards					0	0	0
Repurchases of common stock					0	0	0
Purchase of subsidiary shares from noncontrolling interest						0
Acquisition of noncontrolling interests					0
Other Comprehensive Income (Loss) [Member]
Total equity	(29,393)		(1,170)		(29,393)	(1,170)	(9,415)	(36,912)
Consolidated net income (loss)					0	0	0
Translation adjustments					0	0	0
Unrealized gain on investment securities, net					(11,886)	5,501	22,844
Unrealized gain on interest rate swaps designated as cash flow hedges, net					(1,855)		1,132
Other employee benefit plan, items, net					(14,482)	2,744	3,521
Amortization of stock-based compensation					0	0	0
Shares issued for stock-based compensation awards					0	0	0
Tax benefits related to stock-based compensation awards					0	0	0
Repurchases of common stock					0	0	0
Purchase of subsidiary shares from noncontrolling interest						0
Acquisition of noncontrolling interests					0
Noncontrolling Interest [Member]
Total equity	6,448		0		6,448	0	337	352
Consolidated net income (loss)					506	(5)	(7)
Translation adjustments					(20)	(5)	(8)
Unrealized gain on investment securities, net					0	0	0
Unrealized gain on interest rate swaps designated as cash flow hedges, net					0		0
Other employee benefit plan, items, net					0	0	0
Amortization of stock-based compensation					0	0	0
Shares issued for stock-based compensation awards					0	0	0
Tax benefits related to stock-based compensation awards					0	0	0
Repurchases of common stock					0	0	0
Purchase of subsidiary shares from noncontrolling interest						(327)
Acquisition of noncontrolling interests					$ 5,962

[1] Includes restructuring, integration, and other charges ($11,223 net of related taxes or $.10 per share on both a basic and diluted basis), an adjustment to the gain on bargain purchase recorded in the first quarter of 2011 ($410 net of related taxes), a loss on prepayment of debt ($549 net of related taxes), and a net reduction in the provision for income taxes ($28,928 net of related taxes or $.26 and $.25 per share on a basic and diluted basis, respectively) principally due to a reversal of valuation allowance on certain international deferred tax assets.

[2] Includes restructuring, integration, and other charges ($5,459 net of related taxes or $.05 per share on both a basic and diluted basis), as well as a net reduction of the provision for income taxes ($9,404 net of related taxes or $.08 per share on both a basic and diluted basis) and a reduction of interest expense ($2,312 net of related taxes or $.02 per share on both a basic and diluted basis) primarily related to the settlement of certain income tax matters covering multiple years.