Note 20 - Financial Instruments (Details) - Financial Instruments Not Recorded at Fair Value (USD $) In Millions, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Marketable securities
Long-term held-to-maturity	$ 23	$ 23
	23	23
Debt
Short-term debt	871	699
	895	686
Long-term debt	370	740
	383	606
Debt subject to compromise	2,471	2,708
	80	72
Debt Subject to Compromise [Member] | Fair Value, Inputs, Level 2 [Member]
Debt
Debt subject to compromise	683	683
Debt Subject to Compromise [Member]
Debt
Debt subject to compromise	683	683
Fair Value, Inputs, Level 1 [Member]
Marketable securities
Long-term held-to-maturity	23	23
	23	23
Fair Value, Inputs, Level 2 [Member]
Debt
Short-term debt	871	699
	895	686
Long-term debt	370	740
	383	606
	$ 80	$ 72