AON · XBRL financial data

Aon financial statements, every fiscal year

The same tables from 6 filings, lined up. Matched by XBRL tag: renamed lines keep their history.

How these numbers work

Every number comes from the company's XBRL financial data filed with the SEC, and each one links to its filing.
Lines are matched by XBRL tag, so a line renamed between filings keeps its history.
* marks a quarter worked out from the filing totals: the 10-K year minus the first three quarters, or a year-to-date total minus the earlier one. Fourth-quarter earnings per share is fourth-quarter net income over the fourth-quarter weighted shares.
0 means a filing states zero; a dash (—) means no filing states that number.
“year only” means the 10-K gives the full year but not the quarters needed to work out the fourth. A worked-out quarter of revenue, cost of revenue or operating cash flow more than twice the company's largest quarter of the two years before is shown this way too.
Gross profit is shown as the company reports it; a worked-out quarter must equal revenue less cost of revenue for that quarter, or it is a dash.
Operating income can be above gross profit when the company books other operating income between the two, shown on its own line.
Shares outstanding come from each filing's cover page, as of the date printed there.
Quarters are fiscal: Q2 FY27 is the second quarter of the company's fiscal 2027.

Income statement

Fiscal years (AON's year ends in late December)

In millions of dollars	FY 2020Dec 31, 2020	FY 2021Dec 31, 2021	FY 2022Dec 31, 2022	FY 2023Dec 31, 2023	FY 2024Dec 31, 2024	FY 2025Dec 31, 2025
Revenue from contracts with customers	11,066	12,193	12,479	13,376	15,698	17,181
Operating income (loss)	2,781	2,090	3,669	3,785	3,835	4,344
Interest expense	334	322	406	484	788	815
Other income (expense)	12	152	(125)	(163)	348	1,211
Income tax expense (benefit)	448	623	510	541	742	1,009
Net income (loss)	1,969	1,255	2,589	2,564	2,654	3,695
Earnings per share, basic USD per share	8.49	5.59	12.23	12.60	12.55	17.11
Earnings per share, diluted USD per share	8.45	5.55	12.14	12.51	12.49	17.02
Weighted average shares, basic millions of shares	232	225	212	204	211	216
Weighted average shares, diluted millions of shares	233	226	213	205	213	217

Fiscal years (AON's year ends in late December)

In millions of dollars	FY 2020Dec 31, 2020	FY 2021Dec 31, 2021	FY 2022Dec 31, 2022	FY 2023Dec 31, 2023	FY 2024Dec 31, 2024	FY 2025Dec 31, 2025
Cash and cash equivalents	884	544	690	778	1,085	1,195
Short-term investments	308	292	452	369	219	1,603
Accounts receivable	3,070	3,094	3,035	3,254	3,803	4,209
Total current assets	18,684	19,032	20,723	21,704	23,432	25,774
Property and equipment, net	599	529	558	638	637	702
Right-of-use asset	911	786	699	650	711	677
Goodwill	8,666	8,434	8,292	8,414	15,234	15,797
Total assets	32,114	31,917	32,704	33,959	48,965	50,784
Total current liabilities	17,433	19,073	20,306	21,651	22,995	23,226
Long-term debt	7,281	8,228	9,825	9,995	16,265	14,660
Lease liability, non-current	897	772	693	641	685	641
Total liabilities	28,531	30,759	33,133	34,701	42,535	41,236
Retained earnings (accumulated deficit)	1,042	(1,694)	(2,772)	(3,399)	(2,309)	(245)
Total stockholders' equity	3,495	1,061	(529)	(826)	6,121	9,352
Total liabilities and equity	32,114	31,917	32,704	33,959	48,965	50,784
Common shares outstanding (cover page) millions of shares	226	214	205	198	216	214

Fiscal years (AON's year ends in late December)

In millions of dollars	FY 2020Dec 31, 2020	FY 2021Dec 31, 2021	FY 2022Dec 31, 2022	FY 2023Dec 31, 2023	FY 2024Dec 31, 2024	FY 2025Dec 31, 2025
Net income (loss)	1,969	1,255	2,589	2,564	2,654	3,695
Stock-based compensation	312	449	397	438	474	432
Net cash from operating activities	2,783	2,182	3,219	3,435	3,035	3,481
Purchases of property and equipment	141	137	196	252	218	263
Net cash from investing activities	(679)	49	(449)	(188)	(2,833)	286
Proceeds from issuing common stock	44	55	58	72	79	70
Dividends paid	412	447	463	489	562	629
Proceeds from long-term debt	4,153	5,973	1,967	744	7,926	0
Repayments of long-term debt	3,882	4,220	500	350	4,928	1,850
Net cash from financing activities	(2,088)	(1,924)	(1,790)	(2,865)	796	(4,205)
Net change in cash	94	72	431	646	611	240

SIC 6411 and related industry codes, similar size. Each row is the latest quarter reported.

How peers are chosen

SIC 6411 and related industry codes with public float (or, where float is missing, quarterly revenue) between 0.2x and 5x the company's.
Each row is the latest quarter the company has reported, named in the Quarter column; when that filing is a 10-K, it is the fourth quarter, never the full year.
* marks a quarter worked out from the filing totals: for a 10-Q, the year-to-date total less the earlier one.

Company	Cash ($M)	Revenue, quarter ($M)	Operating cash flow, quarter ($M)	Shares outstanding	Quarter
Aon	2,017	4,101	1,191*	212.2M	Q3 FY26 10-QSep 30, 2026
Arthur J. Gallagher	1,386	4,003	10*	256.3M	Q2 FY26 10-QJun 30, 2026
Marsh & McLennan Companies	1,842	6,863	1,478*	475.5M	Q3 FY26 10-QSep 30, 2026
Brown & Brown	1,099	1,725	532*	331.7M	Q3 FY26 10-QSep 30, 2026
Willis Towers Watson	1,946	2,404	739*	92.2M	Q3 FY26 10-QSep 30, 2026
Equitable Holdings	17,183	1,658	643*	273.0M	Q2 FY26 10-QJun 30, 2026

Not investment advice. Not affiliated with the U.S. SEC.