Note 6 - Fair Value Measurement of Assets and Liabilities (Details) (USD $)		0 Months Ended
	Sep. 30, 2011	Oct. 13, 2011 Sale [Member]	Sep. 30, 2011 Estimate of Fair Value, Fair Value Disclosure [Member] Fair Value, Measurements, Recurring [Member]	Dec. 31, 2010 Estimate of Fair Value, Fair Value Disclosure [Member] Fair Value, Measurements, Recurring [Member]	Sep. 30, 2011 Estimate of Fair Value, Fair Value Disclosure [Member] Fair Value, Measurements, Recurring [Member] Restricted Cash [Member] Short-term Investments [Member]	Dec. 31, 2010 Estimate of Fair Value, Fair Value Disclosure [Member] Fair Value, Measurements, Recurring [Member] Restricted Cash [Member] Short-term Investments [Member]	Sep. 30, 2011 Estimate of Fair Value, Fair Value Disclosure [Member] Fair Value, Measurements, Recurring [Member] Restricted Cash [Member] Long-Term Investment [Member]	Dec. 31, 2010 Estimate of Fair Value, Fair Value Disclosure [Member] Fair Value, Measurements, Recurring [Member] Restricted Cash [Member] Long-Term Investment [Member]	Sep. 30, 2011 Estimate of Fair Value, Fair Value Disclosure [Member] Fair Value, Measurements, Recurring [Member] Corporate Debt Securities [Member] Short-term Investments [Member]	Dec. 31, 2010 Estimate of Fair Value, Fair Value Disclosure [Member] Fair Value, Measurements, Recurring [Member] Corporate Debt Securities [Member] Short-term Investments [Member]	Sep. 30, 2011 Estimate of Fair Value, Fair Value Disclosure [Member] Fair Value, Measurements, Recurring [Member] Corporate Debt Securities [Member] Long-Term Investment [Member]	Dec. 31, 2010 Estimate of Fair Value, Fair Value Disclosure [Member] Fair Value, Measurements, Recurring [Member] Corporate Debt Securities [Member] Long-Term Investment [Member]	Sep. 30, 2011 Estimate of Fair Value, Fair Value Disclosure [Member] Fair Value, Measurements, Recurring [Member] US Treasury and Government [Member] Short-term Investments [Member]	Dec. 31, 2010 Estimate of Fair Value, Fair Value Disclosure [Member] Fair Value, Measurements, Recurring [Member] US Treasury and Government [Member] Short-term Investments [Member]	Sep. 30, 2011 Estimate of Fair Value, Fair Value Disclosure [Member] Fair Value, Measurements, Recurring [Member] US Treasury and Government [Member] Long-Term Investment [Member]	Dec. 31, 2010 Estimate of Fair Value, Fair Value Disclosure [Member] Fair Value, Measurements, Recurring [Member] US Treasury and Government [Member] Long-Term Investment [Member]	Sep. 30, 2011 Estimate of Fair Value, Fair Value Disclosure [Member] Fair Value, Measurements, Recurring [Member] Bank Time Deposits [Member] Short-term Investments [Member]	Dec. 31, 2010 Estimate of Fair Value, Fair Value Disclosure [Member] Fair Value, Measurements, Recurring [Member] Bank Time Deposits [Member] Short-term Investments [Member]	Sep. 30, 2011 Estimate of Fair Value, Fair Value Disclosure [Member] Fair Value, Measurements, Recurring [Member] Time Deposits and Other [Member] Long-Term Investment [Member]	Dec. 31, 2010 Estimate of Fair Value, Fair Value Disclosure [Member] Fair Value, Measurements, Recurring [Member] Time Deposits and Other [Member] Long-Term Investment [Member]	Sep. 30, 2011 Estimate of Fair Value, Fair Value Disclosure [Member] Fair Value, Measurements, Recurring [Member] Equity Securities [Member] Short-term Investments [Member]	Dec. 31, 2010 Estimate of Fair Value, Fair Value Disclosure [Member] Fair Value, Measurements, Recurring [Member] Equity Securities [Member] Short-term Investments [Member]	Sep. 30, 2011 Estimate of Fair Value, Fair Value Disclosure [Member] Fair Value, Measurements, Recurring [Member] Short-term Investments [Member]	Dec. 31, 2010 Estimate of Fair Value, Fair Value Disclosure [Member] Fair Value, Measurements, Recurring [Member] Short-term Investments [Member]	Sep. 30, 2011 Estimate of Fair Value, Fair Value Disclosure [Member] Fair Value, Measurements, Recurring [Member] Long-Term Investment [Member]	Dec. 31, 2010 Estimate of Fair Value, Fair Value Disclosure [Member] Fair Value, Measurements, Recurring [Member] Long-Term Investment [Member]	Sep. 30, 2011 Estimate of Fair Value, Fair Value Disclosure [Member] Fair Value, Measurements, Recurring [Member] Other Current Assets [Member]	Dec. 31, 2010 Estimate of Fair Value, Fair Value Disclosure [Member] Fair Value, Measurements, Recurring [Member] Other Current Assets [Member]	Sep. 30, 2011 Estimate of Fair Value, Fair Value Disclosure [Member] Fair Value, Measurements, Recurring [Member] Other Current Liabilities [Member]	Dec. 31, 2010 Estimate of Fair Value, Fair Value Disclosure [Member] Fair Value, Measurements, Recurring [Member] Other Current Liabilities [Member]	Sep. 30, 2011 Fair Value, Inputs, Level 1 [Member] Fair Value, Measurements, Recurring [Member]	Dec. 31, 2010 Fair Value, Inputs, Level 1 [Member] Fair Value, Measurements, Recurring [Member]	Sep. 30, 2011 Fair Value, Inputs, Level 1 [Member] Fair Value, Measurements, Recurring [Member] Restricted Cash [Member] Short-term Investments [Member]	Dec. 31, 2010 Fair Value, Inputs, Level 1 [Member] Fair Value, Measurements, Recurring [Member] Restricted Cash [Member] Short-term Investments [Member]	Sep. 30, 2011 Fair Value, Inputs, Level 1 [Member] Fair Value, Measurements, Recurring [Member] Restricted Cash [Member] Long-Term Investment [Member]	Dec. 31, 2010 Fair Value, Inputs, Level 1 [Member] Fair Value, Measurements, Recurring [Member] Restricted Cash [Member] Long-Term Investment [Member]	Sep. 30, 2011 Fair Value, Inputs, Level 1 [Member] Fair Value, Measurements, Recurring [Member] Corporate Debt Securities [Member] Short-term Investments [Member]	Dec. 31, 2010 Fair Value, Inputs, Level 1 [Member] Fair Value, Measurements, Recurring [Member] Corporate Debt Securities [Member] Short-term Investments [Member]	Sep. 30, 2011 Fair Value, Inputs, Level 1 [Member] Fair Value, Measurements, Recurring [Member] Corporate Debt Securities [Member] Long-Term Investment [Member]	Dec. 31, 2010 Fair Value, Inputs, Level 1 [Member] Fair Value, Measurements, Recurring [Member] Corporate Debt Securities [Member] Long-Term Investment [Member]	Sep. 30, 2011 Fair Value, Inputs, Level 1 [Member] Fair Value, Measurements, Recurring [Member] US Treasury and Government [Member] Short-term Investments [Member]	Dec. 31, 2010 Fair Value, Inputs, Level 1 [Member] Fair Value, Measurements, Recurring [Member] US Treasury and Government [Member] Short-term Investments [Member]	Sep. 30, 2011 Fair Value, Inputs, Level 1 [Member] Fair Value, Measurements, Recurring [Member] US Treasury and Government [Member] Long-Term Investment [Member]	Dec. 31, 2010 Fair Value, Inputs, Level 1 [Member] Fair Value, Measurements, Recurring [Member] US Treasury and Government [Member] Long-Term Investment [Member]	Sep. 30, 2011 Fair Value, Inputs, Level 1 [Member] Fair Value, Measurements, Recurring [Member] Bank Time Deposits [Member] Short-term Investments [Member]	Dec. 31, 2010 Fair Value, Inputs, Level 1 [Member] Fair Value, Measurements, Recurring [Member] Bank Time Deposits [Member] Short-term Investments [Member]	Sep. 30, 2011 Fair Value, Inputs, Level 1 [Member] Fair Value, Measurements, Recurring [Member] Time Deposits and Other [Member] Long-Term Investment [Member]	Dec. 31, 2010 Fair Value, Inputs, Level 1 [Member] Fair Value, Measurements, Recurring [Member] Time Deposits and Other [Member] Long-Term Investment [Member]	Sep. 30, 2011 Fair Value, Inputs, Level 1 [Member] Fair Value, Measurements, Recurring [Member] Equity Securities [Member] Short-term Investments [Member]	Dec. 31, 2010 Fair Value, Inputs, Level 1 [Member] Fair Value, Measurements, Recurring [Member] Equity Securities [Member] Short-term Investments [Member]	Sep. 30, 2011 Fair Value, Inputs, Level 1 [Member] Fair Value, Measurements, Recurring [Member] Short-term Investments [Member]	Dec. 31, 2010 Fair Value, Inputs, Level 1 [Member] Fair Value, Measurements, Recurring [Member] Short-term Investments [Member]	Sep. 30, 2011 Fair Value, Inputs, Level 1 [Member] Fair Value, Measurements, Recurring [Member] Long-Term Investment [Member]	Dec. 31, 2010 Fair Value, Inputs, Level 1 [Member] Fair Value, Measurements, Recurring [Member] Long-Term Investment [Member]	Sep. 30, 2011 Fair Value, Inputs, Level 1 [Member] Fair Value, Measurements, Recurring [Member] Other Current Assets [Member]	Dec. 31, 2010 Fair Value, Inputs, Level 1 [Member] Fair Value, Measurements, Recurring [Member] Other Current Assets [Member]	Sep. 30, 2011 Fair Value, Inputs, Level 1 [Member] Fair Value, Measurements, Recurring [Member] Other Current Liabilities [Member]	Dec. 31, 2010 Fair Value, Inputs, Level 1 [Member] Fair Value, Measurements, Recurring [Member] Other Current Liabilities [Member]	Sep. 30, 2011 Fair Value, Inputs, Level 2 [Member] Fair Value, Measurements, Recurring [Member]	Dec. 31, 2010 Fair Value, Inputs, Level 2 [Member] Fair Value, Measurements, Recurring [Member]	Sep. 30, 2011 Fair Value, Inputs, Level 2 [Member] Fair Value, Measurements, Recurring [Member] Restricted Cash [Member] Short-term Investments [Member]	Dec. 31, 2010 Fair Value, Inputs, Level 2 [Member] Fair Value, Measurements, Recurring [Member] Restricted Cash [Member] Short-term Investments [Member]	Sep. 30, 2011 Fair Value, Inputs, Level 2 [Member] Fair Value, Measurements, Recurring [Member] Restricted Cash [Member] Long-Term Investment [Member]	Dec. 31, 2010 Fair Value, Inputs, Level 2 [Member] Fair Value, Measurements, Recurring [Member] Restricted Cash [Member] Long-Term Investment [Member]	Sep. 30, 2011 Fair Value, Inputs, Level 2 [Member] Fair Value, Measurements, Recurring [Member] Corporate Debt Securities [Member] Short-term Investments [Member]	Dec. 31, 2010 Fair Value, Inputs, Level 2 [Member] Fair Value, Measurements, Recurring [Member] Corporate Debt Securities [Member] Short-term Investments [Member]	Sep. 30, 2011 Fair Value, Inputs, Level 2 [Member] Fair Value, Measurements, Recurring [Member] Corporate Debt Securities [Member] Long-Term Investment [Member]	Dec. 31, 2010 Fair Value, Inputs, Level 2 [Member] Fair Value, Measurements, Recurring [Member] Corporate Debt Securities [Member] Long-Term Investment [Member]	Sep. 30, 2011 Fair Value, Inputs, Level 2 [Member] Fair Value, Measurements, Recurring [Member] US Treasury and Government [Member] Short-term Investments [Member]	Dec. 31, 2010 Fair Value, Inputs, Level 2 [Member] Fair Value, Measurements, Recurring [Member] US Treasury and Government [Member] Short-term Investments [Member]	Sep. 30, 2011 Fair Value, Inputs, Level 2 [Member] Fair Value, Measurements, Recurring [Member] US Treasury and Government [Member] Long-Term Investment [Member]	Dec. 31, 2010 Fair Value, Inputs, Level 2 [Member] Fair Value, Measurements, Recurring [Member] US Treasury and Government [Member] Long-Term Investment [Member]	Sep. 30, 2011 Fair Value, Inputs, Level 2 [Member] Fair Value, Measurements, Recurring [Member] Bank Time Deposits [Member] Short-term Investments [Member]	Dec. 31, 2010 Fair Value, Inputs, Level 2 [Member] Fair Value, Measurements, Recurring [Member] Bank Time Deposits [Member] Short-term Investments [Member]	Sep. 30, 2011 Fair Value, Inputs, Level 2 [Member] Fair Value, Measurements, Recurring [Member] Time Deposits and Other [Member] Long-Term Investment [Member]	Dec. 31, 2010 Fair Value, Inputs, Level 2 [Member] Fair Value, Measurements, Recurring [Member] Time Deposits and Other [Member] Long-Term Investment [Member]	Sep. 30, 2011 Fair Value, Inputs, Level 2 [Member] Fair Value, Measurements, Recurring [Member] Equity Securities [Member] Short-term Investments [Member]	Dec. 31, 2010 Fair Value, Inputs, Level 2 [Member] Fair Value, Measurements, Recurring [Member] Equity Securities [Member] Short-term Investments [Member]	Sep. 30, 2011 Fair Value, Inputs, Level 2 [Member] Fair Value, Measurements, Recurring [Member] Short-term Investments [Member]	Dec. 31, 2010 Fair Value, Inputs, Level 2 [Member] Fair Value, Measurements, Recurring [Member] Short-term Investments [Member]	Sep. 30, 2011 Fair Value, Inputs, Level 2 [Member] Fair Value, Measurements, Recurring [Member] Long-Term Investment [Member]	Dec. 31, 2010 Fair Value, Inputs, Level 2 [Member] Fair Value, Measurements, Recurring [Member] Long-Term Investment [Member]	Sep. 30, 2011 Fair Value, Inputs, Level 2 [Member] Fair Value, Measurements, Recurring [Member] Other Current Assets [Member]	Dec. 31, 2010 Fair Value, Inputs, Level 2 [Member] Fair Value, Measurements, Recurring [Member] Other Current Assets [Member]	Sep. 30, 2011 Fair Value, Inputs, Level 2 [Member] Fair Value, Measurements, Recurring [Member] Other Current Liabilities [Member]	Dec. 31, 2010 Fair Value, Inputs, Level 2 [Member] Fair Value, Measurements, Recurring [Member] Other Current Liabilities [Member]	Sep. 30, 2011 Cost and Equity Securities [Member] Long-Term Investment [Member]	Dec. 31, 2010 Cost and Equity Securities [Member] Long-Term Investment [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Cash and cash equivalents			$ 2,998,950,000	$ 5,577,411,000																											$ 2,998,950,000	$ 5,577,411,000																											$ 0	$ 0
Investments					21,619,000	20,351,000	2,423,000	1,332,000	428,895,000	372,225,000	2,126,273,000	1,605,770,000	44,342,000	66,534,000	82,465,000	150,966,000	82,292,000	44,772,000	5,112,000	4,541,000	436,776,000	541,521,000	1,013,924,000	1,045,403,000	2,216,273,000	1,762,609,000							21,619,000	20,351,000	2,423,000	1,332,000	0	0	0	0	0	0	0	0	0	0	0	0	436,776,000	541,521,000	458,395,000	561,872,000	2,423,000	1,332,000							0	0	0	0	428,895,000	372,225,000	2,126,273,000	1,605,770,000	44,342,000	66,534,000	82,465,000	150,966,000	82,292,000	44,772,000	5,112,000	4,541,000	0	0	555,529,000	483,531,000	2,213,850,000	1,761,277,000
Derivative assets																											70,780,000	37,196,000																											0	0																											70,780,000	37,196,000
Total financial assets			6,299,927,000	8,422,619,000																											3,459,768,000	6,140,615,000																											2,840,159,000	2,282,004,000
Derivatives liabilities																													32,906,000	4,963,000																											0	0																											32,906,000	4,963,000
Fair Value Disclosure, additional details
Cost and equity method investments included in long-term investments																																																																																							802,300,000	729,400,000
Equity method investment ownership percentage	30.00%
Proceeds from sale of equity method investment		2,300,000,000
Projected pre-tax gain on disposal		1,700,000,000
Pooling arrangement, cash withdrawals	3,500,000,000
Pooling arrangement, aggregate cash deposits	3,500,000,000
Promotional credit product receivables	$ 192,000,000