Discontinued operation, equity method investment retained after disposal, ownership interest after disposal shares.

No definition available.

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- Definition

Disposal group including discontinued operation, land.

+ References

No definition available.

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- Definition

Disposal group percentage of ownership interest sold.

+ References

No definition available.

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- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
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- Definition

Aggregate dividends declared during the period for each share of common stock outstanding.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
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- Definition

Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

Percent, after disposal, of ownership interest of a discontinued operation in which an equity method investment is retained.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 205
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483499/205-20-50-4B

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- Definition

Amount classified as cash and cash equivalents attributable to disposal group held for sale or disposed of.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
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-Name Accounting Standards Codification
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- Definition

The number of real estate properties owned as of the balance sheet date.

+ References

No definition available.

+ Details

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 805
-SubTopic 30
-Name Accounting Standards Codification
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-URI https://asc.fasb.org/1943274/2147482740/230-10-45-13

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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 830
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-Section 50
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Subsequent Events - Additional Information (Details) $ / shares in Units, $ in Millions	Mar. 17, 2025 $ / shares	Feb. 10, 2025 USD ($) PROPERTY	Feb. 07, 2025 USD ($) shares
Common Class A [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Dividends declared \| $ / shares	$ 0.38
Common Class A [Member] \| Subsequent Event [Member] \| PREDECESSOR MILLROSE BUSINESS [Member]
Subsequent Event [Line Items]
Dividends declared \| $ / shares	0.38
Common Class B [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Dividends declared \| $ / shares	0.38
Common Class B [Member] \| Subsequent Event [Member] \| PREDECESSOR MILLROSE BUSINESS [Member]
Subsequent Event [Line Items]
Dividends declared \| $ / shares	$ 0.38
Rausch Coleman Homes [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Number of homesites \| PROPERTY		24,000
Percentage of interest acquired		100.00%
Cash payment received from acquisition		$ 876
Rausch Coleman Homes [Member] \| Subsequent Event [Member] \| PREDECESSOR MILLROSE BUSINESS [Member]
Subsequent Event [Line Items]
Number of homesites \| PROPERTY		24,000
Percentage of interest acquired		100.00%
Cash payment received from acquisition		$ 876
Lennar Corporation [Member] \| Common Stock [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Percentage of ownership interest after disposal			20.00%
Lennar Corporation [Member] \| Common Stock [Member] \| Subsequent Event [Member] \| PREDECESSOR MILLROSE BUSINESS [Member]
Subsequent Event [Line Items]
Percentage of ownership interest after disposal			20.00%
Lennar Corporation [Member] \| Disposal Group, Disposed of by Means Other than Sale, Not Discontinued Operations, Spinoff [Member] \| PREDECESSOR MILLROSE BUSINESS [Member]
Subsequent Event [Line Items]
Percentage of ownership interest sold			80.00%
Lennar Corporation [Member] \| Disposal Group, Disposed of by Means Other than Sale, Not Discontinued Operations, Spinoff [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Percentage of ownership interest sold			80.00%
Land assets			$ 5,500
Cash			1,000
Lennar Corporation [Member] \| Disposal Group, Disposed of by Means Other than Sale, Not Discontinued Operations, Spinoff [Member] \| Subsequent Event [Member] \| PREDECESSOR MILLROSE BUSINESS [Member]
Subsequent Event [Line Items]
Land assets			5,500
Cash			$ 1,000
Lennar Corporation [Member] \| Disposal Group, Disposed of by Means Other than Sale, Not Discontinued Operations, Spinoff [Member] \| Common Class A [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Retained shares \| shares			33,200,053
Lennar Corporation [Member] \| Disposal Group, Disposed of by Means Other than Sale, Not Discontinued Operations, Spinoff [Member] \| Common Class A [Member] \| Subsequent Event [Member] \| PREDECESSOR MILLROSE BUSINESS [Member]
Subsequent Event [Line Items]
Retained shares \| shares			33,200,053
Lennar Corporation [Member] \| February 7, 2028 \| Disposal Group, Disposed of by Means Other than Sale, Not Discontinued Operations, Spinoff [Member] \| Revolving Credit Facility [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Commitment amount			$ 1,335
Maturity date			Feb. 07, 2028
Lennar Corporation [Member] \| February 7, 2028 \| Disposal Group, Disposed of by Means Other than Sale, Not Discontinued Operations, Spinoff [Member] \| Revolving Credit Facility [Member] \| Subsequent Event [Member] \| PREDECESSOR MILLROSE BUSINESS [Member]
Subsequent Event [Line Items]
Commitment amount			$ 1,335
Maturity date			Feb. 07, 2028
Lennar Corporation [Member] \| March 25, 2025 \| Disposal Group, Disposed of by Means Other than Sale, Not Discontinued Operations, Spinoff [Member] \| Revolving Credit Facility [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Commitment amount			$ 450
Maturity date			Mar. 25, 2025
Lennar Corporation [Member] \| March 25, 2025 \| Disposal Group, Disposed of by Means Other than Sale, Not Discontinued Operations, Spinoff [Member] \| Revolving Credit Facility [Member] \| Subsequent Event [Member] \| PREDECESSOR MILLROSE BUSINESS [Member]
Subsequent Event [Line Items]
Commitment amount			$ 450
Maturity date			Mar. 25, 2025