Note 10 - Non-Wholly Owned Entities (Detail) - Variable Interest Entities (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2010
Purchase of additional 15% ownership interest	$ (58)
Additional Paid-in Capital [Member]
Purchase of additional 15% ownership interest	(51)
Accumulated Other Comprehensive Income (Loss) [Member]
Purchase of additional 15% ownership interest	(1)
Attributable to Parent [Member]
Purchase of additional 15% ownership interest	$ (52)