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IDEA: XBRL DOCUMENT
v3.22.4
Shareholders' Equity (Deficit) - Distributable Profits (Details) - USD ($)
$ in Billions
Dec. 31, 2022
Dec. 31, 2021
Equity [Abstract]
Distributable reserves available amount
$ 29.0
$ 32.7
X
- Definition
Represents the amount of distributable reserves maintained by the entity.
+ References
No definition available.
+ Details
Name:
aon_DistributableReservesAvailableAmount
Namespace Prefix:
aon_
Data Type:
xbrli:monetaryItemType
Balance Type:
credit
Period Type:
instant
X
- References
No definition available.
+ Details
Name:
us-gaap_EquityAbstract
Namespace Prefix:
us-gaap_
Data Type:
xbrli:stringItemType
Balance Type:
na
Period Type:
duration