Rendering

Component: (Network and Table)
Network
2407402 - Disclosure - Goodwill and Other Intangible Assets Schedule of changes in the net carrying amount of goodwill by operating segment (Details)
(http://www.aon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfChangesInNetCarryingAmountOfGoodwillByOperatingSegmentDetails)
TableSchedule of Goodwill [Table]
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0000315293 (http://www.sec.gov/CIK)
Goodwill.Period [Axis]
2013-01-01 - 2013-12-31
2012-01-01 - 2012-12-31
Segments [Axis]Segments [Axis]
Risk and Insurance Brokerage Services [Member]Consulting [Member]Segments [Domain]Risk and Insurance Brokerage Services [Member]Consulting [Member]Segments [Domain]
Changes in the net carrying amount of goodwill by operating segment (in millions)
 
 
 
 
 
 
Balance at the beginning of the period
5,982,000,000  
2,961,000,000  
8,943,000,000  
5,557,000,000  
3,213,000,000  
8,770,000,000  
Goodwill related to acquisitions
36,000,000  
2,000,000  
38,000,000  
49,000,000  
47,000,000  
96,000,000  
Goodwill related to disposals
(9,000,000) 
(3,000,000) 
(12,000,000) 
(1,000,000) 
0  
(1,000,000) 
Goodwill related to other prior year acquisitions
(2,000,000) 
17,000,000  
15,000,000  
(6,000,000) 
0  
(6,000,000) 
Transfers
 
 
 
313,000,000 1
(313,000,000)1
0 1
Foreign currency translation
13,000,000  
0  
13,000,000  
70,000,000  
14,000,000  
84,000,000  
Balance at the end of the period
6,020,000,000  
 
2,977,000,000  
 
8,997,000,000  
 
5,982,000,000  
 
2,961,000,000  
 
8,943,000,000  
 
1: Effective January 1, 2012, the Health and Benefits Consulting business was transferred from the HR Solutions segment to the Risk Solutions segment.