Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Jan. 31, 2014	Jan. 31, 2013
Statement of Cash Flows [Abstract]
Proceeds from Collection of Notes Receivable	$ 64,865	$ 0
NET CASH USED IN OPERATING ACTIVITIES	(1,120,322)	(1,311,926)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of available-for-sale securities	(45,158)	(108,351)
Maturities of and payments received on available-for-sale securities	72,502	86,808
Principal payments on mortgage loans held for investment, net	35,320	31,205
Purchases of property and equipment	(125,654)	(96,063)
Payments to Acquire Businesses, Net of Cash Acquired	37,865	20,662
Franchise loans:
Loans funded	(62,039)	(68,874)
Payments received	17,893	9,594
Other, net	12,227	(13,973)
Net cash provided by (used in) investing activities	(67,909)	(180,316)
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayments of Commercial Paper	80,930	789,271
Proceeds from Issuance of Commercial Paper	275,914	1,214,238
Repayments of Long-term Debt	0	(636,621)
Proceeds from Issuance of Long-term Debt	0	497,185
Customer banking deposits, net	(124,947)	208,753
Dividends paid	(164,134)	(162,692)
Repurchase of common stock, including shares surrendered	(6,047)	(340,298)
Proceeds from exercise of stock options	28,083	11,529
Other, net	(29,872)	(36,113)
Net cash used in financing activities	(101,933)	(33,290)
Effects of exchange rates on cash	(20,016)	(417)
Net decrease in cash and cash equivalents	(1,310,180)	(1,525,949)
Cash and cash equivalents at beginning of the period	1,747,584	1,944,334
Cash and cash equivalents at end of the period	437,404	418,385
SUPPLEMENTARY CASH FLOW DATA:
Income taxes paid, net of refunds received	87,672	104,986
Interest paid on borrowings	43,297	62,160
Interest paid on deposits	1,696	4,377
Transfers of foreclosed loans to other assets	6,389	7,208
Accrued additions to property and equipment	4,113	1,001
Transfer of mortgage loans held for investment to held for sale	$ 7,608	$ 0