Share Capital

6 Months Ended

Jun. 30, 2012

Stockholders Equity Note Abstract

Shareholders Equity And Share Based Payments Text Block

7. Share Capital

(a) Authorized and Issued

Ordinary Share Buybacks

On February 27, 2012, the Company announced that its Board of Directors approved a share buyback program, authorizing the Company to purchase up to $750 million of its ordinary shares.This authorization replaced the approximately $190 million remaining under the share buyback program that was authorized in November 2010 as described in further detail in Item 8, Note 18, “Share Capital,” to the Consolidated Financial Statements included in the Company's Annual Report on Form 10-K for the year ended December 31, 2011. During the three months ended March 31, 2012 and the three months ended June 30, 2012, the Company purchased and canceled 4.7 million and6.1 million ordinary sharesunder the new program for $100.0 million and $125.0 million, respectively. All share buybacks were carried out by way of redemption in accordance with Irish law and the Company's constitutional documents. All shares so redeemed were canceled upon redemption. At June 30, 2012, $525.0 million remained available for purchase under the new program.

(b) Stock Plans

The Company's performance incentive programs provide for grants of stock options, restricted stock, restricted stock units and performance units and stock appreciation rights. Share based compensation granted by the Company generally contains a vesting period of three or four years, and certain awards also contain performance conditions. The Company records compensation expense related to each award over its vesting period incorporating the best estimate of the expected outcome of performance conditions where applicable. Compensation expense is generally recorded on a straight line basis over the vesting period of an award. See Item 8, Note 18, “Share Capital,” to the Consolidated Financial Statements included in the Company's Annual Report on Form 10-K for the year ended December 31, 2011 for further information on the Company's performance incentive programs and associated accounting.

During the six months endedJune 30, 2012, the Company granted approximately 1.2 million stock options with a weighted-average grant date fair value of $7.62 per option. The fair value of the options issued was estimated on the date of grant using the Black-Scholes option pricing model using the following weighted average assumptions:

Dividend yield	1.90	%
Risk free interest rate	1.16	%
Volatility	46.0	%
Expected lives	6.0	years

During the six months endedJune 30, 2012, the Company granted approximately 0.3 million restricted stock awards to certain employees and directors of the Company and its subsidiaries with an aggregate grant date fair value of approximately $6.8 million. The award recipients generally have the rights and privileges of a shareholder as to the restricted stock, including the right to receive dividends and the right to vote such restricted stock.The recipients are not entitled to receive delivery of a stock certificate prior to vesting nor may any restricted stock be sold, transferred, pledged, or otherwise disposed of prior to the satisfaction of all vesting requirements.

During the six months endedJune 30, 2012, the Company granted approximately 1.3 million restricted stock units to certain employees of the Company and its subsidiaries with an aggregate grant date fair value of approximately $26.2 million. Each restricted stock unit represents the Company's obligation to deliver to the holder one ordinary share upon satisfaction of the three year vesting term. Restricted stock units are granted at the closing market price on the day of grant and entitle the holder to receive dividends declared and paid in the form of additional ordinary shares contingent upon vesting.

During the six months endedJune 30, 2012, the Company granted approximately 1.5 million performance units (representing a potential maximum share payout of approximately 3.0million ordinary shares) to certain employees with an aggregate grant date fair value of approximately $29.2 million. The performance units vest after three years, subject to the achievement of stated performance metrics, and entitle the holder to ordinary shares of the Company. There are no dividend rights associated with the performance units. Each grant of performance units has a target number of shares, with final payouts ranging from 0% to 200% of the grant amount depending upon a combination of corporate and business segment performance along with each employee's continued service through the vest date. Performance targets are based on relative and absolute financial performance metrics.