Note 8 - Derivative Instruments (Details) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Fair Value of Derivative Contracts:
Notional amount of foreign currency derivatives	$ 6,600,000,000	$ 4,200,000,000
Notional amount of foreign currency cash flow hedge derivatives	2,300,000,000	2,000,000,000
Net derivative loss reclassified into earnings within next 12 months	45,000,000
Other Current Assets [Member] | Foreign Exchange Contract [Member]
Fair Value of Derivative Contracts:
Derivative Assets	55,000,000	112,000,000
Other Current Assets [Member] | Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member]
Fair Value of Derivative Contracts:
Derivative Assets	1,000,000	75,000,000
Other Current Assets [Member] | Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member]
Fair Value of Derivative Contracts:
Derivative Assets	43,000,000	29,000,000
Other Current Assets [Member] | Not Designated as Hedging Instrument [Member] | Embedded Derivative Financial Instruments [Member]
Fair Value of Derivative Contracts:
Derivative Assets	11,000,000	8,000,000
Other Current Liabilities [Member] | Foreign Exchange Contract [Member]
Fair Value of Derivative Contracts:
Derivative Liabilities	86,000,000	60,000,000
Other Current Liabilities [Member] | Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member]
Fair Value of Derivative Contracts:
Derivative Liabilities	56,000,000	3,000,000
Other Current Liabilities [Member] | Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member]
Fair Value of Derivative Contracts:
Derivative Liabilities	30,000,000	57,000,000
Other Current Liabilities [Member] | Not Designated as Hedging Instrument [Member] | Embedded Derivative Financial Instruments [Member]
Fair Value of Derivative Contracts:
Derivative Liabilities	$ 0	$ 0