Consolidated Statements of Financial Position - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
CURRENT ASSETS
Cash and cash equivalents	$ 384	$ 374
Short-term investments	356	394
Receivables, net	2,734	2,815
Fiduciary assets	9,932	11,638
Other current assets	566	602
Total Current Assets	13,972	15,823
Goodwill	8,448	8,860
Intangible assets, net	2,180	2,520
Fixed assets, net	765	765
Non-current deferred tax assets	141	144
Prepaid pension	1,033	933
Other non-current assets	625	727
TOTAL ASSETS	27,164	29,772
CURRENT LIABILITIES
Fiduciary liabilities	9,932	11,638
Short-term debt and current portion of long-term debt	562	783
Accounts payable and accrued liabilities	1,772	1,805
Other current liabilities	820	788
Total Current Liabilities	13,086	15,014
Long-term debt	5,175	4,799
Non-current deferred tax liabilities	176	313
Pension, other post retirement, and post employment liabilities	1,795	2,141
Other non-current liabilities	769	874
TOTAL LIABILITIES	21,001	23,141
EQUITY
Ordinary shares - $0.01 nominal value Authorized: 750 shares (issued: 2015 - 269.8; 2014 - 280.0)	3	3
Additional paid-in capital	5,409	5,097
Retained earnings	4,117	4,605
Accumulated other comprehensive loss	(3,423)	(3,134)
TOTAL AON SHAREHOLDERS' EQUITY	6,106	6,571
Noncontrolling interests	57	60
TOTAL EQUITY	6,163	6,631
TOTAL LIABILITIES AND EQUITY	$ 27,164	$ 29,772