Stockholders' Equity (Schedule Of Changes In Equity) (Details) - USD ($)		3 Months Ended
	Jun. 18, 2021	Feb. 28, 2022		Feb. 28, 2021	Mar. 31, 2022	Oct. 31, 2021
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning		$ 20,996,282,000	[1]	$ 18,099,401,000
Net earnings (including net earnings attributable to noncontrolling interests)		509,315,000		1,016,909,000
Employee stock and directors plans		(54,886,000)		(26,279,000)
Purchases of treasury stock		(526,361,000)		(43,110,000)
Amortization of restricted stock		81,457,000		48,818,000
Cash dividends		(110,122,000)		(77,843,000)
Receipts related to noncontrolling interests		6,984,000		8,896,000
Payments related to noncontrolling interests		(59,388,000)		(11,397,000)
Non-cash purchase or activity of noncontrolling interests, net		1,124,000		2,998,000
Total other comprehensive income, net of tax		3,027,000		(942,000)
Balance, ending		20,847,432,000	[1]	$ 19,017,451,000
Cash dividends (in dollars per share)	$ 0.375			$ 0.250
Stock repurchase program, authorized value						$ 1,000,000,000
Stock repurchase program, authorized shares (in shares)						25,000,000
Additional Paid - in Capital
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning		8,807,891,000		$ 8,676,056,000
Employee stock and directors plans		(140,000)		(59,000)
Amortization of restricted stock		81,457,000		48,818,000
Non-cash purchase or activity of noncontrolling interests, net		(34,057,000)		(623,000)
Balance, ending		8,855,151,000		8,724,192,000
Treasury Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning		(2,709,448,000)		(1,279,227,000)
Employee stock and directors plans		(54,939,000)		(26,373,000)
Purchases of treasury stock		(526,361,000)		(43,110,000)
Balance, ending		(3,290,748,000)		(1,348,710,000)
Accumulated Other Comprehensive Income (loss)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning		(1,341,000)		(805,000)
Total other comprehensive income, net of tax		3,027,000		(942,000)
Balance, ending		1,686,000		(1,747,000)
Retained Earnings
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning		14,685,329,000		10,564,994,000
Net earnings (including net earnings attributable to noncontrolling interests)		503,581,000		1,001,369,000
Cash dividends		(110,122,000)		(77,843,000)
Balance, ending		15,078,788,000		11,488,520,000
Noncontrolling Interests
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning		179,857,000		104,545,000
Net earnings (including net earnings attributable to noncontrolling interests)		5,734,000		15,540,000
Receipts related to noncontrolling interests		6,984,000		8,896,000
Payments related to noncontrolling interests		(59,388,000)		(11,397,000)
Non-cash purchase or activity of noncontrolling interests, net		35,181,000		3,621,000
Balance, ending		$ 168,368,000		$ 121,205,000
Common Class A
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares repurchased during period (in shares)		4,616,000		510,000
Total purchase price		$ 472,924,000		$ 43,100,000
Average share price of shares repurchased (in dollars per share)		$ 102.45		$ 84.51
Common Class A | Common Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning		$ 30,050,000		$ 29,894,000
Employee stock and directors plans		193,000		153,000
Balance, ending		$ 30,243,000		$ 30,047,000
Common Class B
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares repurchased during period (in shares)		652,000		0
Total purchase price		$ 53,331,000		$ 0
Average share price of shares repurchased (in dollars per share)		$ 81.80		$ 0
Common Class B | Common Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning		$ 3,944,000		$ 3,944,000
Balance, ending		$ 3,944,000		$ 3,944,000
Subsequent Event
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock repurchase program, authorized value					$ 2,000,000,000
Stock repurchase program, authorized shares (in shares)					30,000,000

[1] As of February 28, 2022, total liabilities include $236.4 million related to consolidated VIEs as to which there was no recourse against the Company, of which $23.8 million is included in Homebuilding accounts payable, $182.7 million in Homebuilding liabilities related to consolidated inventory not owned, $18.4 million in Homebuilding senior notes and other debts payable, $7.8 million in Homebuilding other liabilities and $3.8 million in Multifamily liabilities.As of November 30, 2021, total liabilities include $258.5 million related to consolidated VIEs as to which there was no recourse against the Company, of which $26.6 million is included in Homebuilding accounts payable, $196.6 million in Homebuilding liabilities related to consolidated inventory not owned, $20.1 million in Homebuilding senior notes and other debt payable, $12.3 million in Homebuilding other liabilities and $2.8 million in Multifamily liabilities.