Condensed Consolidated Statements of Financial Position - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Current assets
Cash and cash equivalents	$ 595	$ 544
Short-term investments	455	292
Receivables, net	3,625	3,094
Fiduciary assets	15,277	14,386
Other current assets	593	716
Total current assets	20,545	19,032
Goodwill	8,496	8,434
Intangible assets, net	530	492
Fixed assets, net	515	529
Operating lease right-of-use assets	754	786
Deferred tax assets	770	766
Prepaid pension	1,361	1,366
Other non-current assets	520	512
Total assets	33,491	31,917
Current liabilities
Accounts payable and accrued liabilities	1,728	2,192
Short-term debt and current portion of long-term debt	599	1,164
Fiduciary liabilities	15,277	14,386
Other current liabilities	1,585	1,331
Total current liabilities	19,189	19,073
Long-term debt	9,685	8,228
Non-current operating lease liabilities	736	772
Deferred tax liabilities	399	401
Pension, other postretirement, and postemployment liabilities	1,320	1,375
Other non-current liabilities	871	910
Total liabilities	32,200	30,759
Equity
Ordinary shares - $0.01 nominal value Authorized: 500.0 shares (issued: 2022 - 212.9; 2021 - 214.8)	2	2
Additional paid-in capital	6,627	6,624
Accumulated deficit	(1,609)	(1,694)
Accumulated other comprehensive loss	(3,843)	(3,871)
Total Aon shareholders' equity	1,177	1,061
Noncontrolling interests	114	97
Total equity	1,291	1,158
Total liabilities and equity	$ 33,491	$ 31,917