Share-Based Compensation (Details 2) (USD $) In Thousands, except Share data, unless otherwise specified	6 Months Ended
Jun. 30, 2012 Y
Stock Options
Stock option activity
Outstanding at the beginning of the Period (in shares)	44,526,748
Changes during the period
Granted (in shares)	4,804,055
Exercised/Released (in shares)	(5,407,630)
Forfeited (in shares)	(687,456)
Expired (in shares)	(46,016)
Outstanding at the end of the period (in shares)	43,189,701
Compensation cost and expected weighted-average period related to nonvested awards
Unrecognized compensation cost	$ 285,062
Expected weighted-average period in years of compensation cost to be recognized	2.3
Restricted Stock Units
Restricted and Performance-Based Restricted Stock Units
Nonvested at the beginning of the period, Share Equivalent	3,019,943
Granted, Share Equivalent	1,534,372
Exercised, Share Equivalent	(389,874)
Forfeited, Share Equivalent	(85,975)
Nonvested at the end of the period, Share Equivalent	4,078,466
Compensation cost and expected weighted-average period related to nonvested awards
Unrecognized compensation cost	180,670
Expected weighted-average period in years of compensation cost to be recognized	2.1
Performance-Based Restricted Stock Units
Restricted and Performance-Based Restricted Stock Units
Nonvested at the beginning of the period, Share Equivalent	28,500
Forfeited, Share Equivalent	(1,500)
Nonvested at the end of the period, Share Equivalent	27,000
Compensation cost and expected weighted-average period related to nonvested awards
Unrecognized compensation cost	$ 1,004
Expected weighted-average period in years of compensation cost to be recognized	1.5

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As of the balance sheet date, the aggregate unrecognized cost of equity-based awards made to employees under equity-based compensation awards that have yet to vest.

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The weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, using a decimal to express in number of years.

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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The number of grants made 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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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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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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The decrease in the number of shares that could be issued attributable to the lapse of rights to exercise previously issued stock options under the terms of the option agreements under the plan during the reporting period.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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Net number of share options (or share units) granted during the period.

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The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

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Number of share options (or share units) exercised during the current period.

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