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Note 11 - Stock-Based Plans Restricted Stock Units (Details) (Restricted Stock Units (RSUs) [Member], USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013
Restricted Stock Units (RSUs) [Member]
Restricted Stock Unit Activity
Restricted stock units outstanding, beginning of period	39
Awarded and assumed	1
Vested	(9)
Forfeited	(1)
Restricted stock units outstanding, end of period	30
Weighted average grant date fair value for restricted stock units awarded, during period	$ 54.83

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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