Segment Reporting - Schedule of Financial Results by Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Revenues:
Total revenues	$ 1,943,444	$ 2,094,666	$ 5,996,997	$ 6,442,127
Expenses:
Total expenses	916,934	1,035,895	2,796,816	3,045,946
(Loss) Income from unconsolidated entities	(149,792)	(74,839)	(887,816)	(137,195)
Income from investments in real estate debt	142,396	184,849	408,928	610,117
Change in net assets of consolidated securitization vehicles	18,613	44,170	89,005	160,596
Income from investments in equity securities				61,482
GAAP segment income (loss)	1,037,727	1,212,951	2,810,298	4,091,181
Depreciation and amortization	(788,475)	(848,214)	(2,424,225)	(2,650,756)
General and administrative	(17,958)	(15,368)	(50,958)	(49,668)
Management fee	(166,757)	(174,252)	(502,074)	(542,028)
Performance participation allocation	(124,029)	0	(355,028)	0
Impairment of investments in real estate	(27,386)	(48,571)	(368,757)	(232,329)
Loss from interest rate derivatives	(159,269)	(815,212)	(758,028)	(552,650)
Net gain on dispositions of real estate	332,883	988,970	933,186	1,271,414
Interest expense, net	(768,735)	(853,014)	(2,312,297)	(2,542,584)
Loss on extinguishment of debt	(17,186)	(19,608)	(54,060)	(71,660)
Other expense	(14,332)	(35,408)	(40,341)	(80,723)
Net loss	(713,517)	(607,726)	(3,122,284)	(1,359,803)
Net loss (income) attributable to non-controlling interests in third party joint ventures	18,164	(37,374)	78,416	31,685
Net loss attributable to non-controlling interests in BREIT OP	56,671	39,041	220,071	70,547
Net loss attributable to BREIT stockholders	(638,682)	(606,059)	(2,823,797)	(1,257,571)
Net realized and unrealized gain (loss) on equity securities				58,800
Rental Housing
Revenues:
Total revenues	1,213,527	1,316,822	3,765,851	4,076,164
Expenses:
Total expenses	665,652	772,232	2,027,514	2,245,347
(Loss) Income from unconsolidated entities	(12,990)	77,308	(40,433)	63,184
Income from investments in real estate debt	0	1,300	0	1,299
Change in net assets of consolidated securitization vehicles	0	0	0	0
Income from investments in equity securities				61,482
GAAP segment income (loss)	534,885	623,198	1,697,904	1,956,782
Depreciation and amortization	(504,176)	(537,343)	(1,558,932)	(1,694,465)
Industrial
Revenues:
Total revenues	323,816	359,288	990,124	1,092,008
Expenses:
Total expenses	113,878	117,137	343,604	358,739
(Loss) Income from unconsolidated entities	(54,950)	85,242	157,976	31,967
Income from investments in real estate debt	0	0	0	0
Change in net assets of consolidated securitization vehicles	0	0	0	0
Income from investments in equity securities				0
GAAP segment income (loss)	154,988	327,393	804,496	765,236
Depreciation and amortization	(159,828)	(178,348)	(488,020)	(550,116)
Net Lease
Revenues:
Total revenues	150,384	150,384	451,153	451,153
Expenses:
Total expenses	552	673	1,895	2,000
(Loss) Income from unconsolidated entities	(123)	0	(520)	0
Income from investments in real estate debt	0	0	0	0
Change in net assets of consolidated securitization vehicles	0	0	0	0
Income from investments in equity securities				0
GAAP segment income (loss)	149,709	149,711	448,738	449,153
Depreciation and amortization	(49,555)	(51,878)	(148,666)	(155,635)
Office
Revenues:
Total revenues	47,963	43,026	137,801	134,006
Expenses:
Total expenses	14,964	13,637	46,924	43,842
(Loss) Income from unconsolidated entities	8,629	(6,535)	16,519	7,052
Income from investments in real estate debt	0	0	0	0
Change in net assets of consolidated securitization vehicles	0	0	0	0
Income from investments in equity securities				0
GAAP segment income (loss)	41,628	22,854	107,396	97,216
Depreciation and amortization	(21,401)	(23,005)	(64,342)	(70,753)
Hospitality
Revenues:
Total revenues	123,399	137,847	396,973	421,153
Expenses:
Total expenses	89,125	97,870	281,232	291,754
(Loss) Income from unconsolidated entities	(2,643)	(1,701)	(7,709)	(6,806)
Income from investments in real estate debt	0	0	0	0
Change in net assets of consolidated securitization vehicles	0	0	0	0
Income from investments in equity securities				0
GAAP segment income (loss)	31,631	38,276	108,032	122,593
Depreciation and amortization	(22,247)	(22,811)	(68,200)	(68,477)
Retail
Revenues:
Total revenues	51,327	54,529	156,807	170,302
Expenses:
Total expenses	20,468	22,959	60,491	70,560
(Loss) Income from unconsolidated entities	(393)	(1,159)	(2,947)	(2,887)
Income from investments in real estate debt	0	0	0	0
Change in net assets of consolidated securitization vehicles	0	0	0	0
Income from investments in equity securities				0
GAAP segment income (loss)	30,466	30,411	93,369	96,855
Depreciation and amortization	(18,897)	(22,653)	(59,196)	(74,791)
Data Centers
Revenues:
Total revenues	13,300	13,215	40,566	39,650
Expenses:
Total expenses	2,796	2,367	8,873	7,369
(Loss) Income from unconsolidated entities	(87,322)	(227,994)	(1,010,702)	(229,705)
Income from investments in real estate debt	0	0	0	0
Change in net assets of consolidated securitization vehicles	0	0	0	0
Income from investments in equity securities				0
GAAP segment income (loss)	(76,818)	(217,146)	(979,009)	(197,424)
Depreciation and amortization	(5,546)	(5,541)	(16,638)	(16,624)
Self Storage
Revenues:
Total revenues	19,728	19,555	57,722	57,691
Expenses:
Total expenses	9,499	9,020	26,283	26,335
(Loss) Income from unconsolidated entities	0	0	0	0
Income from investments in real estate debt	0	0	0	0
Change in net assets of consolidated securitization vehicles	0	0	0	0
Income from investments in equity securities				0
GAAP segment income (loss)	10,229	10,535	31,439	31,356
Depreciation and amortization	(6,825)	(6,635)	(20,231)	(19,895)
Investments in Real Estate Debt
Revenues:
Total revenues	0	0	0	0
Expenses:
Total expenses	0	0	0	0
(Loss) Income from unconsolidated entities	0	0	0	0
Income from investments in real estate debt	142,396	183,549	408,928	608,818
Change in net assets of consolidated securitization vehicles	18,613	44,170	89,005	160,596
Income from investments in equity securities				0
GAAP segment income (loss)	161,009	227,719	497,933	769,414
Depreciation and amortization	0	0	0	0
Rental revenue
Revenues:
Total revenues	1,719,143	1,854,256	5,322,192	5,729,865
Expenses:
Total expenses	827,809	938,025	2,515,584	2,754,192
Rental revenue | Rental Housing
Revenues:
Total revenues	1,122,936	1,225,267	3,515,163	3,815,805
Expenses:
Total expenses	665,652	772,232	2,027,514	2,245,347
Rental revenue | Industrial
Revenues:
Total revenues	321,059	352,796	979,205	1,076,474
Expenses:
Total expenses	113,878	117,137	343,604	358,739
Rental revenue | Net Lease
Revenues:
Total revenues	150,384	150,384	451,153	451,153
Expenses:
Total expenses	552	673	1,895	2,000
Rental revenue | Office
Revenues:
Total revenues	42,741	40,818	128,677	126,660
Expenses:
Total expenses	14,964	13,637	46,924	43,842
Rental revenue | Hospitality
Revenues:
Total revenues	0	0	0	0
Expenses:
Total expenses	0	0	0	0
Rental revenue | Retail
Revenues:
Total revenues	50,338	53,636	153,687	166,719
Expenses:
Total expenses	20,468	22,959	60,491	70,560
Rental revenue | Data Centers
Revenues:
Total revenues	13,300	13,215	40,547	39,650
Expenses:
Total expenses	2,796	2,367	8,873	7,369
Rental revenue | Self Storage
Revenues:
Total revenues	18,385	18,140	53,760	53,404
Expenses:
Total expenses	9,499	9,020	26,283	26,335
Rental revenue | Investments in Real Estate Debt
Revenues:
Total revenues	0	0	0	0
Expenses:
Total expenses	0	0	0	0
Hospitality
Revenues:
Total revenues	123,399	137,847	396,714	421,153
Expenses:
Total expenses	89,125	97,870	281,232	291,754
Hospitality | Rental Housing
Revenues:
Total revenues	0	0	0	0
Expenses:
Total expenses	0	0	0	0
Hospitality | Industrial
Revenues:
Total revenues	0	0	0	0
Expenses:
Total expenses	0	0	0	0
Hospitality | Net Lease
Revenues:
Total revenues	0	0	0	0
Expenses:
Total expenses	0	0	0	0
Hospitality | Office
Revenues:
Total revenues	0	0	0	0
Expenses:
Total expenses	0	0	0	0
Hospitality | Hospitality
Revenues:
Total revenues	123,399	137,847	396,714	421,153
Expenses:
Total expenses	89,125	97,870	281,232	291,754
Hospitality | Retail
Revenues:
Total revenues	0	0	0	0
Expenses:
Total expenses	0	0	0	0
Hospitality | Data Centers
Revenues:
Total revenues	0	0	0	0
Expenses:
Total expenses	0	0	0	0
Hospitality | Self Storage
Revenues:
Total revenues	0	0	0	0
Expenses:
Total expenses	0	0	0	0
Hospitality | Investments in Real Estate Debt
Revenues:
Total revenues	0	0	0	0
Expenses:
Total expenses	0	0	0	0
Other revenue
Revenues:
Total revenues	100,902	102,563	278,091	291,109
Other revenue | Rental Housing
Revenues:
Total revenues	90,591	91,555	250,688	260,359
Other revenue | Industrial
Revenues:
Total revenues	2,757	6,492	10,919	15,534
Other revenue | Net Lease
Revenues:
Total revenues	0	0	0	0
Other revenue | Office
Revenues:
Total revenues	5,222	2,208	9,124	7,346
Other revenue | Hospitality
Revenues:
Total revenues	0	0	259	0
Other revenue | Retail
Revenues:
Total revenues	989	893	3,120	3,583
Other revenue | Data Centers
Revenues:
Total revenues	0	0	19	0
Other revenue | Self Storage
Revenues:
Total revenues	1,343	1,415	3,962	4,287
Other revenue | Investments in Real Estate Debt
Revenues:
Total revenues	$ 0	$ 0	$ 0	$ 0