Operating and Reporting Segments (Homebuilding Financial Information) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	May 31, 2020	May 31, 2019	May 31, 2020	May 31, 2019
Segment Reporting Information [Line Items]
Revenues	$ 5,287,373	$ 5,562,890	$ 9,792,710	$ 9,430,972
Operating earnings (loss)	760,028	635,512	1,270,427	1,033,979
Homebuilding
Segment Reporting Information [Line Items]
Revenues	4,949,484	5,195,599	9,121,600	8,819,320
Operating Segments | East
Segment Reporting Information [Line Items]
Revenues	1,577,716	1,737,342	2,984,582	2,964,155
Operating earnings (loss)	229,726	210,464	404,731	345,847
Operating Segments | Central
Segment Reporting Information [Line Items]
Revenues	685,999	613,785	1,220,975	1,048,852
Operating earnings (loss)	67,065	55,344	96,537	86,270
Operating Segments | Texas
Segment Reporting Information [Line Items]
Revenues	712,756	693,212	1,185,984	1,111,729
Operating earnings (loss)	99,887	75,374	152,960	107,652
Operating Segments | West
Segment Reporting Information [Line Items]
Revenues	1,959,823	2,143,023	3,708,592	3,683,920
Operating earnings (loss)	280,094	272,904	505,001	463,565
Operating Segments | Other
Segment Reporting Information [Line Items]
Revenues	13,190	8,237	21,467	10,664
Operating earnings (loss)	(45,411)	(32,297)	(67,470)	(51,950)
Operating Segments | Homebuilding
Segment Reporting Information [Line Items]
Revenues	4,949,484	5,195,599	9,121,600	8,819,320
Operating earnings (loss)	631,361	581,789	1,091,759	951,384
Operating Segments And Corporate | Homebuilding
Segment Reporting Information [Line Items]
Revenues	4,949,484	5,195,599	9,121,600	8,819,320
Operating earnings (loss)	$ 631,361	$ 581,789	$ 1,091,759	$ 951,384