Employee Incentive, Deferred Compensation, and Retirement Plans (Schedule Of Unvested Restricted Stock Award Roll Forward) (Details) - Restricted Stock Units and Restricted Stock Awards [Member] shares in Thousands	12 Months Ended
	Dec. 31, 2023 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested, Beginning balance | shares	14,845
Granted | shares	3,101
Vested | shares	(4,017)
Cancelled | shares	(400)
Unvested, Ending balance | shares	13,529
Unvested, Weighted-average grant date fair value, Beginning balance | $ / shares	$ 46.83
Granted, Weighted-average grant date fair value | $ / shares	62.14
Vested, Weighted-average grant date fair value | $ / shares	40.49
Cancelled, Weighted-average grant date fair value | $ / shares	50.38
Unvested, Weighted-average grant date fair value, Ending balance | $ / shares	$ 52.12