Consolidated Statements of Financial Position - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
CURRENT ASSETS
Cash and cash equivalents	$ 431	$ 384
Short-term investments	290	356
Receivables, net	2,589	2,564
Fiduciary assets	9,485	9,932
Other current assets	351	329
Total Current Assets	13,146	13,565
Goodwill	8,747	8,448
Intangible assets, net	2,223	2,180
Fixed assets, net	765	765
Deferred tax assets	322	300
Prepaid pension	858	1,033
Other non-current assets	554	592
TOTAL ASSETS	26,615	26,883
CURRENT LIABILITIES
Accounts payable and accrued liabilities	1,801	1,772
Short-term debt and current portion of long-term debt	336	562
Fiduciary liabilities	9,485	9,932
Other current liabilities	873	819
Total Current Liabilities	12,495	13,085
Long-term debt	5,869	5,138
Deferred tax liabilities	101	37
Pension, other post retirement, and post employment liabilities	1,774	1,795
Other non-current liabilities	844	769
TOTAL LIABILITIES	21,083	20,824
EQUITY
Ordinary shares - $0.01 nominal value Authorized: 750 shares (issued: 2016 - 262.0; 2015 - 269.8)	3	3
Additional paid-in capital	5,577	5,409
Retained earnings	3,807	4,013
Accumulated other comprehensive loss	(3,912)	(3,423)
TOTAL AON SHAREHOLDERS' EQUITY	5,475	6,002
Noncontrolling interests	57	57
TOTAL EQUITY	5,532	6,059
TOTAL LIABILITIES AND EQUITY	$ 26,615	$ 26,883