Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
OPERATING ACTIVITIES
Net income	$ 641.1	$ 539.7
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation and amortization	34.1	33.1
Amortization of discounts and fees	5.1	2.4
Stock-based compensation expense	35.9	31.0
Equity in earnings of unconsolidated entities	(0.5)	(2.7)
Distributions of earnings of unconsolidated entities	0.5	0.2
Deferred income taxes	12.6	145.0
Inventory and land option charges	21.8	33.8
Gain on sale of assets	(31.3)	(14.5)
Changes in operating assets and liabilities:
Increase in construction in progress and finished homes	(755.2)	(514.5)
Increase in residential land and lots – developed, under development, held for development and held for sale	(445.6)	(271.5)
(Increase) decrease in other assets	(39.9)	4.4
Increase in mortgage loans held for sale	0.0	(70.7)
Increase (decrease) in accounts payable, accrued expenses and other liabilities	59.7	(14.5)
Net cash (used in) provided by operating activities	(461.7)	(98.8)
INVESTING ACTIVITIES
Expenditures for property and equipment	(69.8)	(39.5)
Proceeds from sale of assets	83.8	253.4
Expenditures related to multi-family rental properties	(28.3)	(39.5)
Return of investment in unconsolidated entities	4.4	15.1
Net principal increase of other mortgage loans and real estate owned	(1.6)	0.0
Payments related to business acquisitions	(309.6)	(158.1)
Net cash (used in) provided by investing activities	(321.1)	31.4
FINANCING ACTIVITIES
Proceeds from notes payable	1,815.0	1,913.6
Repayment of notes payable	(1,531.0)	(1,752.5)
Advances on mortgage repurchase facility, net	53.0	69.8
Proceeds from stock associated with certain employee benefit plans	22.3	32.7
Cash paid for shares withheld for taxes	(19.5)	(10.3)
Cash dividends paid	(111.9)	(94.1)
Repurchases of common stock	(216.2)	(47.9)
Distributions to noncontrolling interests, net	(3.7)	(2.0)
Net cash (used in) provided by financing activities	8.0	109.3
Net (decrease) increase in cash, cash equivalents and restricted cash	(774.8)	41.9
Cash, cash equivalents and restricted cash at beginning of period	1,506.0	1,024.3
Cash, cash equivalents and restricted cash at end of period	731.2	1,066.2
SUPPLEMENTAL DISCLOSURES OF NON-CASH ACTIVITIES:
Notes Issued	80.8	0.0
Stock issued under employee incentive plans	49.0	63.4
Accrual for holdback payment related to acquisition	$ 16.3	$ 0.0