Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
ASSETS
Loans	$ 17,205,479	$ 16,303,131
Loans and Leases Receivable, Allowance	(162,395)	(150,136)
Net loans	17,043,084	16,152,995
Loans held for sale	4,177	4,964
Investment securities:
Debt Securities, Available-for-sale	9,684,760	12,238,316
Trading	28,830	43,523
Equity Securities, FV-NI and without Readily Determinable Fair Value	12,701	12,304
Other Securities	222,473	225,034
Total investment securities	9,948,764	12,519,177
Federal funds sold	5,025	49,505
Securities Purchased under Agreements to Resell	450,000	825,000
Interest-bearing Deposits in Banks and Other Financial Institutions	2,239,010	389,140
Cash and due from banks	443,147	452,496
Premises and equipment – net	469,059	418,909
Goodwill	146,539	138,921
Other intangible assets – net	14,179	15,234
Other assets	938,077	909,590
Total assets	31,701,061	31,875,931
Deposits [Abstract]
Non-interest bearing	7,975,935	10,066,356
Savings, interest checking and money market	14,512,273	15,126,981
Time open and C.D.’s of less than $100,000	930,432	387,336
Time open and C.D.'s of $100,000 and over	1,945,258	606,767
Total deposits	25,363,898	26,187,440
Federal funds purchased and securities sold under agreements to repurchase	2,908,815	2,841,734
Other borrowings	1,404	9,672
Other liabilities	462,714	355,508
Total liabilities	28,736,831	29,394,354
Commerce Bancshares, Inc. stockholders’ equity:
Common stock, $5 par value	655,322	629,319
Capital surplus	3,162,622	2,932,959
Retained earnings	53,183	31,620
Treasury Stock, Value	(35,599)	(41,743)
Accumulated Other Comprehensive Income (Loss), Net of Tax	(891,412)	(1,086,864)
Equity, Attributable to Parent, Total	2,944,116	2,465,291
Non-controlling interest	20,114	16,286
Total equity	2,964,230	2,481,577
Total liabilities and equity	$ 31,701,061	$ 31,875,931