Note 14 - Fair Value Measurements (Details) - Major Categories of Financial Assets and Liabilities Measured on a Recurring Basis - USD ($) $ / shares in Units, $ in Millions		12 Months Ended
		Dec. 31, 2015	Mar. 31, 2016
Non-current assets:
Other assets (1)(2)		$ 1,493	$ 1,342
Current liabilities:
Other accrued liabilities (1)		1,308	1,201
Non-current liabilities:
Other liabilities (1)		$ 2,242	2,767
(in Dollars per share)		$ (3)
Current Assets [Member]
Current assets:
Short-term investments		$ 100
Other current assets (1)	[1]	522	336
Non Current Assets [Member]
Non-current assets:
Other assets (1)(2)	[1],[2]	752	540
Current Liabilities [Member]
Current liabilities:
Other accrued liabilities (1)	[1]	55	112	[3]
Non Current Liabilities [Member]
Non-current liabilities:
Other liabilities (1)	[1]	98	620	[3]
Fair Value, Inputs, Level 2 [Member] | Current Assets [Member]
Current assets:
Other current assets (1)	[1]	522	336
Fair Value, Inputs, Level 2 [Member] | Non Current Assets [Member]
Non-current assets:
Other assets (1)(2)	[1],[2]	506	288
Fair Value, Inputs, Level 2 [Member] | Current Liabilities [Member]
Current liabilities:
Other accrued liabilities (1)	[1]	55	112	[3]
Fair Value, Inputs, Level 2 [Member] | Non Current Liabilities [Member]
Non-current liabilities:
Other liabilities (1)	[1]	88	612	[3]
Fair Value, Inputs, Level 3 [Member] | Non Current Assets [Member]
Non-current assets:
Other assets (1)(2)	[1],[2]	246	252
Fair Value, Inputs, Level 3 [Member] | Non Current Liabilities [Member]
Non-current liabilities:
Other liabilities (1)	[1]	10	$ 8	[3]
Fair Value, Inputs, Level 1 [Member] | Current Assets [Member]
Current assets:
Short-term investments		$ 100

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

[2] Other assets include asset-backed securities which are measured using observable quoted prices for similar assets and contingent considerationassets which are measured by applying an option pricing model using projected future revenue.

[3] Other liabilities include Level 3 contingent consideration payables which are measured by applying an option pricing model using projectedfuture revenues.