Note 14 - Fair Value Measurements - Major Categories of Financial Assets and Liabilities Measured on a Recurring Basis (Details) - USD ($) $ in Millions		Jun. 30, 2016		Dec. 31, 2015
Current Assets [Member] | Fair Value, Inputs, Level 2 [Member]
Other current assets		$ 103	[1]	$ 522	[2]
Short-term investments
Current Assets [Member] | Fair Value, Inputs, Level 1 [Member]
Other current assets	[2]
Short-term investments				100
Current Assets [Member] | Fair Value, Inputs, Level 3 [Member]
Other current assets			[1]		[2]
Short-term investments
Current Assets [Member]
Other current assets			[1]	522	[2]
Short-term investments				100
Non Current Assets [Member] | Fair Value, Inputs, Level 2 [Member]
Other assets		107	[1],[3]	506	[2],[4]
Non Current Assets [Member] | Fair Value, Inputs, Level 1 [Member]
Other assets	[2],[4]
Non Current Assets [Member] | Fair Value, Inputs, Level 3 [Member]
Other assets		237	[1],[3]	246	[2],[4]
Non Current Assets [Member]
Other assets			[1],[3]	752	[2],[4]
Current Liabilities [Member] | Fair Value, Inputs, Level 2 [Member]
Other accrued liabilities (Note 3 and Note 12)	[1]	211
Other accrued liabilities	[2]			55
Current Liabilities [Member] | Fair Value, Inputs, Level 1 [Member]
Other accrued liabilities	[2]
Current Liabilities [Member] | Fair Value, Inputs, Level 3 [Member]
Other accrued liabilities (Note 3 and Note 12)	[1]
Other accrued liabilities	[2]
Current Liabilities [Member]
Other accrued liabilities (Note 3 and Note 12)	[1]
Other accrued liabilities	[2]			55
Non Current Liabilities [Member] | Fair Value, Inputs, Level 2 [Member]
Other liabilities (Note 3 and Note 12)	[1],[3]	1,400
Other accrued liabilities	[2],[4]			88
Non Current Liabilities [Member] | Fair Value, Inputs, Level 1 [Member]
Other accrued liabilities	[2],[4]
Non Current Liabilities [Member] | Fair Value, Inputs, Level 3 [Member]
Other liabilities (Note 3 and Note 12)	[1],[3]	8
Other accrued liabilities	[2],[4]			10
Non Current Liabilities [Member]
Other liabilities (Note 3 and Note 12)	[1],[3]
Other accrued liabilities	[2],[4]			98
Other assets		1,187		1,493
Other accrued liabilities (Note 3 and Note 12)		1,231		1,308
Other liabilities (Note 3 and Note 12)		$ 3,905		$ 2,242

[1] Derivative assets and liabilities include foreign exchange forward and zero-cost collar contracts, and interest rate swaps which are measured using observable quoted prices for similar assets and liabilities.

[2] Derivative assets and liabilities include foreign exchange contracts which are measured using observable quoted prices for similar assets and liabilities.

[3] Other assets include asset-backed securities which are measured using observable quoted prices for similar assets and contingent consideration assets or liabilities which are measured by applying an option pricing model using projected future revenue and forecasted foreign exchange rates.

[4] Other assets include asset-backed securities which are measured using observable quoted prices for similar assets and contingent consideration assets or liabilities which are measured by applying an option pricing model using projected future revenues.