Condensed Financial Statements Of Parent Company Condensed Balance Sheets (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Investments
Fair value of fixed maturities	$ 12,132	$ 13,022
Fair value of equity securities	9,841	11,315
Other invested assets	452	329
Total investments	22,425	24,666
Investment income receivable	160	144
Land, building and equipment, net, for company use (accumulated depreciation: 2022—$156; 2021—$147)	202	205
Other assets	646	570
Total assets	29,736	31,387
Liabilities
Deferred federal income tax	1,367	2,029
Long-term debt	789	789
Other liabilities	1,229	1,092
Total liabilities	19,205	18,282
Shareholders' Equity
Common stock	397	397
Paid-in capital	1,392	1,356
Retained earnings	11,702	12,625
Accumulated other comprehensive income	(636)	648
Treasury stock at cost	(2,324)	(1,921)
Total shareholders' equity	10,531	13,105	$ 10,789
Total liabilities and shareholders' equity	29,736	31,387
Cincinnati Financial Corporation
Investments
Fair value of fixed maturities	78	64
Fair value of equity securities	3,978	4,778
Other invested assets	53	46
Total investments	4,109	4,888
Cash and cash equivalents	121	211	$ 16	$ 197
Equity in net assets of subsidiaries	7,396	9,292
Investment income receivable	11	9
Land, building and equipment, net, for company use (accumulated depreciation: 2022—$156; 2021—$147)	136	140
Income tax receivable	5	0
Other assets	116	108
Due from subsidiaries	102	106
Total assets	11,996	14,754
Liabilities
Dividends declared but unpaid	108	101
Deferred federal income tax	480	664
Long-term debt	789	789
Other liabilities	88	95
Total liabilities	1,465	1,649
Shareholders' Equity
Common stock	397	397
Paid-in capital	1,392	1,356
Retained earnings	11,702	12,625
Accumulated other comprehensive income	(636)	648
Treasury stock at cost	(2,324)	(1,921)
Total shareholders' equity	10,531	13,105
Total liabilities and shareholders' equity	$ 11,996	$ 14,754