XML 39 R29.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Share-Based Compensation Plans (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Share-based compensation expense recognized in continuing operations | The following table summarizes share-based compensation expense recognized in the Condensed Consolidated Statements of Income in Compensation and benefits (in millions):
| Three months ended March 31,
| 2015 |  | 2014
Restricted share units ("RSUs") | $ | 65 |  |  | $ | 60 |
Performance share awards ("PSAs") | 21 |  |  | 39 |
Share options | — |  |  | — |
Employee share purchase plans | 4 |  |  | 3 |
Total share-based compensation expense | $ | 90 |  |  | $ | 102 |
Restricted share unit activity | A summary of the status of the Company's RSUs is as follows (shares in thousands):
| Three months ended March 31,
| 2015 |  | 2014
| Shares |  | Fair Value (1) |  | Shares |  | Fair Value (1)
Non-vested at beginning of period | 8,381 |  |  | $ | 63 |  |  | 9,759 |  |  | $ | 51 |
Granted | 957 |  |  | 97 |  |  | 1,146 |  |  | 83 |
Vested | (1,714 | ) |  | 59 |  |  | (1,950 | ) |  | 51 |
Forfeited | (49 | ) |  | 64 |  |  | (125 | ) |  | 50 |
Non-vested at end of period | 7,575 |  |  | 69 |  |  | 8,830 |  |  | 56 |
______________________________________________
(1) | Represents per share weighted average fair value of award at date of grant.
Performance-based plans | Information as of March 31, 2015 regarding the Company's target PSAs granted and shares that would be issued at current performance levels for PSAs granted during the three months ended March 31, 2015 and the years ended December 31, 2014 and 2013, respectively, is as follows (shares in thousands, dollars in millions, except fair value):
| 2015 |  | 2014 |  | 2013
Target PSAs granted during period | 978 |  |  | 816 |  |  | 1,135 |
Weighted average fair value per share at date of grant | $ | 96 |  |  | $ | 81 |  |  | $ | 58 |
Number of shares that would be issued based on current performance levels | 978 |  |  | 1,201 |  |  | 2,197 |
Unamortized expense, based on current performance levels | $ | 93 |  |  | $ | 61 |  |  | $ | 34 |
Share options and related information | A summary of the status of the Company's share options and related information is as follows (shares in thousands):
| Three months ended March 31,
| 2015 |  | 2014
| Shares |  | Weighted- Average Exercise Price |  | Shares |  | Weighted- Average Exercise Price
Beginning outstanding | 2,300 |  |  | $ | 32 |  |  | 3,462 |  |  | $ | 32 |
Granted | — |  |  | — |  |  | — |  |  | — |
Exercised | (1,293 | ) |  | 26 |  |  | (416 | ) |  | 33 |
Forfeited and expired | (9 | ) |  | 36 |  |  | (2 | ) |  | 36 |
Outstanding at end of period | 998 |  |  | 39 |  |  | 3,044 |  |  | 32 |
Exercisable at end of period | 998 |  |  | 39 |  |  | 2,928 |  |  | 32 |
Other information related to the company's share options | Other information related to the Company's share options is as follows (in millions):
| Three months ended March 31,
| 2015 |  | 2014
Aggregate intrinsic value of stock options exercised | $ | 94 |  |  | $ | 21 |
Cash received from the exercise of stock options | 34 |  |  | 14 |
Tax benefit realized from the exercise of stock options | 34 |  |  | 6 |

X
- Definition This text block may be used to capture information pertaining to performance based plans. + References No definition available. + Details
Name: | aon_ScheduleofPerformanceBasedPlansTableTextBlock
Namespace Prefix: | aon_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of other information related to the company's stock options. + References No definition available. + Details
Name: | aon_ScheduleOfShareBasedCompensationStockOptionsOtherInformationTableTextBlock
Namespace Prefix: | aon_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the amount of total share-based compensation cost, including the amounts attributable to each share-based compensation plan and any related tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfCompensationCostForShareBasedPaymentArrangementsAllocationOfShareBasedCompensationCostsByPlanTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the changes in outstanding nonvested shares. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfNonvestedShareActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration