Consolidated Statements of Financial Position - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Current assets
Cash and cash equivalents	$ 690	$ 544
Short-term investments	452	292
Receivables, net	3,035	3,094
Fiduciary assets	15,900	14,386
Other current assets	646	716
Total current assets	20,723	19,032
Goodwill	8,292	8,434
Intangible assets, net	447	492
Fixed assets, net	558	529
Operating lease right-of-use assets	699	786
Deferred tax assets	824	766
Prepaid pension	652	1,366
Other non-current assets	509	512
Total assets	32,704	31,917
Current liabilities
Accounts payable and accrued liabilities	2,114	2,192
Short-term debt and current portion of long-term debt	945	1,164
Fiduciary liabilities	15,900	14,386
Other current liabilities	1,347	1,331
Total current liabilities	20,306	19,073
Long-term debt	9,825	8,228
Non-current operating lease liabilities	693	772
Deferred tax liabilities	99	401
Pension, other postretirement, and postemployment liabilities	1,186	1,375
Other non-current liabilities	1,024	910
Total liabilities	33,133	30,759
Equity (deficit)
Ordinary shares - $0.01 nominal value Authorized: 500.0 shares (issued: 2022 - 205.4; 2021 - 214.8)	2	2
Additional paid-in capital	6,864	6,624
Accumulated deficit	(2,772)	(1,694)
Accumulated other comprehensive loss	(4,623)	(3,871)
Total Aon shareholders' equity (deficit)	(529)	1,061
Noncontrolling interests	100	97
Total equity (deficit)	(429)	1,158
Total liabilities and equity (deficit)	$ 32,704	$ 31,917