CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands		Total	Preferred stock	Common stock	Additional paid-in capital	Accumulated other comprehensive income (loss)	Accumulated deficit	Accumulated deficit Cumulative effect of change in accounting principle for credit losses	Accumulated deficit Beginning of period - adjusted	Total stockholder’s equity	Noncontrolling interests
Beginning of period at Dec. 31, 2019			$ 1,982,026	$ 3,575	$ 19,977,649	$ 2,138,191	$ (8,309,424)	$ (39,641)	$ (8,349,065)		$ 4,327
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance				0	(93)
Buyback of common stock				(80)	(209,338)
Stock-based award activity				0	6,452
Redemption of preferred stock			(445,457)		(14,543)
Direct purchase and dividend reinvestment				1	1,177
Unrealized gains (losses) on available-for-sale securities		$ 2,012,878				2,012,878
Reclassification adjustment for net gains (losses) included in net income (loss)		(776,734)				(776,734)
Net income (loss) attributable to Annaly		(891,163)					(891,163)
Dividends declared on preferred stock	[1]						(142,036)
Dividends and dividend equivalents declared on common stock and stock-based awards	[1]						(1,285,124)
Net income (loss) attributable to noncontrolling interests		(1,391)									1,391
Equity contributions from (distributions to) noncontrolling interests											7,762
End of period at Dec. 31, 2020		14,021,796	1,536,569	3,496	19,761,304	3,374,335	(10,667,388)	0	(10,667,388)	$ 14,008,316	13,480
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance				152	552,063
Buyback of common stock				0	0
Stock-based award activity				1	11,413
Redemption of preferred stock			0		0
Direct purchase and dividend reinvestment				0	0
Unrealized gains (losses) on available-for-sale securities		(2,419,618)				(2,419,618)
Reclassification adjustment for net gains (losses) included in net income (loss)		3,693				3,693
Net income (loss) attributable to Annaly		2,389,896					2,389,896
Dividends declared on preferred stock	[1]						(107,532)
Dividends and dividend equivalents declared on common stock and stock-based awards	[1]	(1,268,558)					(1,268,558)
Net income (loss) attributable to noncontrolling interests		(6,384)									6,384
Equity contributions from (distributions to) noncontrolling interests											5,635
End of period at Dec. 31, 2021		13,195,325	1,536,569	3,649	20,324,780	958,410	(9,653,582)	$ 0	$ (9,653,582)	13,169,826	25,499
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance				1,031	2,634,969
Buyback of common stock				0	0
Stock-based award activity				3	21,571
Redemption of preferred stock			0		0
Direct purchase and dividend reinvestment				0	0
Unrealized gains (losses) on available-for-sale securities		(8,204,542)				(8,204,542)
Reclassification adjustment for net gains (losses) included in net income (loss)		3,537,236				3,537,236
Net income (loss) attributable to Annaly		1,725,325					1,725,325
Dividends declared on preferred stock	[1]						(110,623)
Dividends and dividend equivalents declared on common stock and stock-based awards	[1]	(1,504,353)					(1,504,353)
Net income (loss) attributable to noncontrolling interests		(1,095)									1,095
Equity contributions from (distributions to) noncontrolling interests											72,389
End of period at Dec. 31, 2022		$ 11,369,426	$ 1,536,569	$ 4,683	$ 22,981,320	$ (3,708,896)	$ (9,543,233)			$ 11,270,443	$ 98,983

[1] (1) Refer to the “Capital Stock” Note for dividends per share for each class of shares.