Parent Company Only Financial Statements Parent Company Only Financial Statements (Tables)

12 Months Ended

Dec. 31, 2019

Condensed Financial Information Disclosure [Abstract]

Condensed Balance Sheet [Table Text Block]

Balance Sheets

(In thousands)

	December 31,
	2019			2018
Assets
Cash and cash equivalents	$	214,779		$	167,093
Loan to bank subsidiary	65,220			65,228
Investment in bank subsidiaries	4,602,977			4,236,654
Investment in non-bank subsidiaries	216,542			218,007
Other assets	38,082			32,999
Total assets	$	5,137,600		$	4,719,981
Liabilities and Shareholders’ Equity
Liabilities:
Other liabilities	$	5,882		$	11,959
Subordinated debentures	275,923			275,913
Total liabilities	281,805			287,872
Shareholders’ equity:
Common stock	5			5
Capital surplus	1,350,995			1,334,030
Retained earnings	3,729,778			3,369,654
Treasury stock	(329,906		)	(198,995		)
Accumulated other comprehensive income (loss)	104,923			(72,585		)
Total shareholders’ equity	4,855,795			4,432,109
Total liabilities and shareholders’ equity	$	5,137,600		$	4,719,981

Condensed Income Statement [Table Text Block]

Statements of Earnings

(In thousands)

	Year Ended December 31,
	2019			2018			2017
Dividends, interest and fees received from bank subsidiaries	$	344,007		$	426,071		$	150,149
Dividends, interest and fees received from non-bank subsidiaries	9,325			12,800			17,500
Other revenue	1,036			954			936
Total revenue	354,368			439,825			168,585
Interest expense	15,113			9,827			8,239
Other operating expense	2,352			12,110			2,014
Total expense	17,465			21,937			10,253
Net income before taxes, other losses, net, and equity in undistributed income of subsidiaries	336,903			417,888			158,332
Other gains (losses), net	3,310			(3,921		)	—
Net income before taxes and equity in undistributed income of subsidiaries	340,213			413,967			158,332
Federal and state income taxes	(4,516		)	(7,078		)	(4,305		)
Net income before equity in undistributed income of subsidiaries	344,729			421,045			162,637
Equity in undistributed income of bank subsidiaries	166,797			37,515			181,552
Equity in undistributed income of non-bank subsidiaries	(10,768		)	(12,914		)	(9,545		)
Net income attributable to BOK Financial Corp. shareholders	$	500,758		$	445,646		$	334,644

Condensed Cash Flow Statement [Table Text Block]

Statements of Cash Flows

(In thousands)

	Year Ended December 31,
	2019			2018			2017
Cash Flows From Operating Activities:
Net income	$	500,758		$	445,646		$	334,644
Adjustments to reconcile net income to net cash provided by operating activities:
Equity in undistributed income of bank subsidiaries	(166,797		)	(37,515		)	(181,552		)
Equity in undistributed income of non-bank subsidiaries	10,768			12,914			9,545
Change in other assets	(5,075		)	(1,072		)	12
Change in other liabilities	855			(13,434		)	7,457
Net cash provided by operating activities	340,509			406,539			170,106
Cash Flows From Investing Activities:
Proceeds from sales of available for sale securities	—			—			3,000
Investment in subsidiaries	(19,837		)	(31,901		)	(4,355		)
Acquisitions, net of cash acquired	—			(232,680		)	—
Net cash used in investing activities	(19,837		)	(264,581		)	(1,355		)
Cash Flows From Financing Activities:
Net change in other borrowed funds	—			—			(7,217		)
Issuance of common and treasury stock, net	(7		)	(88		)	4,368
Dividends paid	(143,496		)	(127,188		)	(116,041		)
Repurchase of common stock	(129,483		)	(53,465		)	(7,403		)
Net cash used in financing activities	(272,986		)	(180,741		)	(126,293		)
Net increase (decrease) in cash and cash equivalents	47,686			(38,783		)	42,458
Cash and cash equivalents at beginning of period	167,093			205,876			163,418
Cash and cash equivalents at end of period	$	214,779		$	167,093		$	205,876
Cash paid for interest	$	15,099		$	11,457		$	6,211