Notes Payable - Note Issuances (Details) - Notes payable			1 Months Ended
	Nov. 30, 2021 USD ($)	Nov. 09, 2021 USD ($)	Nov. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2021 GBP (£)	Nov. 01, 2021 USD ($)	Jul. 31, 2021 GBP (£)	Dec. 31, 2020 USD ($)	Oct. 31, 2020 GBP (£)	Jul. 31, 2020 USD ($)	May 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Jun. 30, 2019 USD ($)	May 31, 2019 GBP (£)
1.125% notes, issued in July 2021 and due in July 2027
Debt
Interest rate (as a percent)				1.125%	1.125%		1.125%
Principal amount | £					£ 400,000,000		£ 400,000,000
Price of par value (as a percent)							99.31%
Effective yield (as a percent)							1.24%
1.750% notes, issued in July 2021 and due in July 2033
Debt
Interest rate (as a percent)				1.75%	1.75%		1.75%
Principal amount | £					£ 350,000,000		£ 350,000,000
Price of par value (as a percent)							99.84%
Effective yield (as a percent)							1.76%
4.600% notes, $500 issued February 2014, of which $485 was exchanged in November 2021, both due in February 2024 (3)
Debt
Interest rate (as a percent)	4.60%		4.60%	4.60%	4.60%
Principal amount				$ 500,000,000
Principal amounts used	$ 485,000,000		$ 485,000,000
Price of par value (as a percent)	100.00%		100.00%
Effective yield (as a percent)	4.60%		4.60%
4.625% notes, $550 issued October 2018, of which $544 was exchanged in November 2021, both due in November 2025 (3)
Debt
Interest rate (as a percent)	4.625%		4.625%	4.625%	4.625%
Principal amount				$ 550,000,000
Principal amounts used	$ 544,000,000		$ 544,000,000
Price of par value (as a percent)	100.00%		100.00%
Effective yield (as a percent)	4.63%		4.63%
4.875% notes, $600 issued June 2016, of which $596 was exchanged in November 2021, both due in June 2026 (3)
Debt
Interest rate (as a percent)	4.875%		4.875%	4.875%	4.875%
Principal amount				$ 600,000,000
Principal amounts used	$ 596,000,000		$ 596,000,000
Price of par value (as a percent)	100.00%		100.00%
Effective yield (as a percent)	4.88%		4.88%
3.950% notes, $600 issued August 2017, of which $594 was exchanged in November 2021, both due in August 2027 (3)
Debt
Interest rate (as a percent)	3.95%		3.95%	3.95%	3.95%
Principal amount				$ 600,000,000
Principal amounts used	$ 594,000,000		$ 594,000,000
Price of par value (as a percent)	100.00%		100.00%
Effective yield (as a percent)	3.95%		3.95%
3.400% notes, $600 issued June 2020, of which $598 was exchanged in November 2021, both due in January 2028 (3)
Debt
Interest rate (as a percent)	3.40%		3.40%	3.40%	3.40%
Principal amount				$ 600,000,000
Principal amounts used	$ 598,000,000		$ 598,000,000
Price of par value (as a percent)	100.00%		100.00%
Effective yield (as a percent)	3.40%		3.40%
2.200% notes, $500 issued November 2020, of which $497 was exchanged in November 2021, both due in June 2028 (3)
Debt
Interest rate (as a percent)	2.20%		2.20%	2.20%	2.20%
Principal amount				$ 500,000,000
Principal amounts used	$ 497,000,000		$ 497,000,000
Price of par value (as a percent)	100.00%		100.00%
Effective yield (as a percent)	2.20%		2.20%
3.100% notes, $600 issued December 2019, of which $596 was exchanged in November 2021, both due in December 2029 (3) (4)
Debt
Interest rate (as a percent)	3.10%		3.10%	3.10%	3.10%
Principal amount				$ 599,000,000		$ 599,000,000						$ 600,000,000
Principal amounts used	$ 596,000,000		$ 596,000,000
Price of par value (as a percent)	100.00%		100.00%
Effective yield (as a percent)	3.10%		3.10%
2.850% notes, $700 issued November 2020, of which $699 was exchanged in November 2021, both due in December 2032 (3)
Debt
Interest rate (as a percent)	2.85%		2.85%	2.85%	2.85%
Principal amount				$ 700,000,000
Principal amounts used	$ 699,000,000		$ 699,000,000
Price of par value (as a percent)	100.00%		100.00%
Effective yield (as a percent)	2.85%		2.85%
3.250% notes, issued in May 2020 and due in January 2031
Debt
Interest rate (as a percent)											3.25%
Principal amount				600,000,000							$ 600,000,000
Price of par value (as a percent)											98.99%
Effective yield (as a percent)											3.36%
3.250% notes, issued in July 2020 and due in January 2031
Debt
Interest rate (as a percent)										3.25%
Principal amount				$ 350,000,000						$ 350,000,000
Price of par value (as a percent)										108.24%
Effective yield (as a percent)										2.34%
1.625% notes, issued in October 2020 and due December 2030
Debt
Interest rate (as a percent)				1.625%	1.625%				1.625%
Principal amount | £					£ 400,000,000				£ 400,000,000
Price of par value (as a percent)									99.19%
Effective yield (as a percent)									1.71%
0.750% notes, issued December 2020 and due in March 2026
Debt
Interest rate (as a percent)				0.75%	0.75%			0.75%
Principal amount				$ 325,000,000				$ 325,000,000
Price of par value (as a percent)								99.19%
Effective yield (as a percent)								0.91%
1.800% notes, issued in December 2020 and due in March 2033
Debt
Interest rate (as a percent)				1.80%	1.80%			1.80%
Principal amount				$ 400,000,000				$ 400,000,000
Price of par value (as a percent)								98.47%
Effective yield (as a percent)								1.94%
2.730% notes, issued in May 2019 and due in May 2034
Debt
Interest rate (as a percent)				2.73%	2.73%									2.73%
Principal amount | £					£ 315,000,000									£ 315,000,000
Price of par value (as a percent)														100.00%
Effective yield (as a percent)														2.73%
3.250% notes, issued in June 2019 and due in June 2029
Debt
Interest rate (as a percent)				3.25%	3.25%								3.25%
Principal amount				$ 500,000,000									$ 500,000,000
Price of par value (as a percent)													99.36%
Effective yield (as a percent)													3.33%
Debt exchange notes
Debt
Price of par value (as a percent)		100.00%
Percentage of original VEREIT OP Notes exchanged		99.20%
Principal issued on exchanged notes		$ 1,000
Principal of original notes exchanged		$ 1,000