Note 15 - Accumulated Other Comprehensive Income (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Accumulated Other Comprehensive Income (Loss), Tax [Roll Forward]
Accumulated other comprehensive income (loss) tax provision (benefit), beginning balance	$ (225)
Other comprehensive income before reclassifications, tax	(57)
Amounts reclassified from accumulated other comprehensive income, tax	0
Net current period other comprehensive income, tax	57
Accumulated other comprehensive income (loss) tax provision (benefit), ending balance	(282)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated other comprehensive income (loss), net of tax, beginning balance	856
Other comprehensive income before reclassifications	(135)
Amounts reclassified from other comprehensive income	(3)
Other comprehensive income (loss), net tax	(132)	315
Accumulated other comprehensive income (loss), net of tax, ending balance	724
Unrealized Gains (Losses) on Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss), Before Tax [Roll Forward]
Accumulated other comprehensive income (loss), before tax, beginning balance	(55)
Other comprehensive income, before reclassifications, before tax	82
Amounts reclassified from accumulated other comprehensive income, before tax	(4)
Net current period other comprehensive income , before tax	86
Accumulated other comprehensive income (loss), before tax, ending balance	31
Unrealized Gains on Investments
Accumulated Other Comprehensive Income (Loss), Before Tax [Roll Forward]
Accumulated other comprehensive income (loss), before tax, beginning balance	687
Other comprehensive income, before reclassifications, before tax	141
Amounts reclassified from accumulated other comprehensive income, before tax	1
Net current period other comprehensive income , before tax	140
Accumulated other comprehensive income (loss), before tax, ending balance	827
Foreign Currency Translation
Accumulated Other Comprehensive Income (Loss), Before Tax [Roll Forward]
Accumulated other comprehensive income (loss), before tax, beginning balance	449
Other comprehensive income, before reclassifications, before tax	(301)
Amounts reclassified from accumulated other comprehensive income, before tax	0
Net current period other comprehensive income , before tax	(301)
Accumulated other comprehensive income (loss), before tax, ending balance	$ 148