Notes Payable - General (Details) - Notes and bonds payable		1 Months Ended
	Nov. 30, 2021 USD ($)	Nov. 30, 2021 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2022 GBP (£)	Oct. 31, 2022 USD ($)	Jan. 31, 2022 GBP (£)	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 ($)	Dec. 31, 2019 USD ($)
Debt
Total principal amount			$ 14,114,000,000				$ 12,257,000,000
Unamortized net premiums and deferred financing costs			164,000,000				243,000,000
Net payable amount			$ 14,278,000,000				12,500,000,000
4.600% notes, $500 issued February 2014, of which $485 was exchanged in November 2021, both due in February 2024
Debt
Interest rate (as a percent)	4.60%	4.60%	4.60%	4.60%
Principal amount			$ 500,000,000
Amount exchanged	$ 485,000,000	$ 485,000,000
Total principal amount			$ 500,000,000				500,000,000
3.875% notes, issued in June 2014 and due in July 2024
Debt
Interest rate (as a percent)			3.875%	3.875%
Principal amount			$ 350,000,000
Total principal amount			$ 350,000,000				350,000,000
3.875% notes, issued in April 2018 and due in April 2025
Debt
Interest rate (as a percent)			3.875%	3.875%
Principal amount			$ 500,000,000
Total principal amount			$ 500,000,000				500,000,000
4.625% notes, $550 issued October 2018, of which $544 was exchanged in November 2021, both due in November 2025
Debt
Interest rate (as a percent)	4.625%	4.625%	4.625%	4.625%
Principal amount			$ 550,000,000
Amount exchanged	$ 544,000,000	$ 544,000,000
Total principal amount			$ 550,000,000				$ 550,000,000
0.750% notes, issued December 2020 and due in March 2026
Debt
Interest rate (as a percent)			0.75%	0.75%			0.75%	0.75%
Principal amount			$ 325,000,000				$ 325,000,000				$ 325,000,000
Total principal amount			$ 325,000,000				325,000,000
4.875% notes, $600 issued June 2016, of which $596 was exchanged in November 2021, both due in June 2026
Debt
Interest rate (as a percent)	4.875%	4.875%	4.875%	4.875%
Principal amount			$ 600,000,000
Amount exchanged	$ 596,000,000	$ 596,000,000
Total principal amount			$ 600,000,000				600,000,000
4.125% notes, $250 issued in September 2014 and $400 issued in March 2017, both due in October 2026
Debt
Interest rate (as a percent)			4.125%	4.125%
Principal amount			$ 650,000,000
Total principal amount			650,000,000				650,000,000
4.125% notes, issued in September 2014 and due in October 2026
Debt
Principal amount			250,000,000
4.125% notes, issued in March 2017 and due in October 2026
Debt
Principal amount			$ 400,000,000
1.875% notes, issued in January 2022 and due in January 2027
Debt
Interest rate (as a percent)			1.875%	1.875%		0.01875%
Principal amount | £				£ 250,000,000		£ 250,000,000
Total principal amount			$ 301,000,000				0
3.000% notes, issued in October 2016 and due in January 2027
Debt
Interest rate (as a percent)			3.00%	3.00%
Principal amount			$ 600,000,000
Total principal amount			$ 600,000,000				$ 600,000,000
1.125% notes, issued in July 2021 and due in July 2027
Debt
Interest rate (as a percent)			1.125%	1.125%			1.125%	1.125%		0.01125%
Principal amount | £				£ 400,000,000				£ 400,000,000		£ 400,000,000
Total principal amount			$ 482,000,000				$ 541,000,000
3.950% notes, $600 issued August 2017, of which $594 was exchanged in November 2021, both due in August 2027
Debt
Interest rate (as a percent)	3.95%	3.95%	3.95%	3.95%
Principal amount			$ 600,000,000
Amount exchanged	$ 594,000,000	$ 594,000,000
Total principal amount			$ 600,000,000				600,000,000
3.650% notes, issued in December 2017 and due in January 2028
Debt
Interest rate (as a percent)			3.65%	3.65%
Principal amount			$ 550,000,000
Total principal amount			$ 550,000,000				550,000,000
3.400% notes, $600 issued June 2020, of which $598 was exchanged in November 2021, both due in January 2028
Debt
Interest rate (as a percent)	3.40%	3.40%	3.40%	3.40%
Principal amount			$ 600,000,000
Amount exchanged	$ 598,000,000	$ 598,000,000
Total principal amount			$ 600,000,000				600,000,000
2.200% notes, $500 issued November 2020, of which $497 was exchanged in November 2021, both due in June 2028
Debt
Interest rate (as a percent)	2.20%	2.20%	2.20%	2.20%
Principal amount			$ 500,000,000
Amount exchanged	$ 497,000,000	$ 497,000,000
Total principal amount			$ 500,000,000				500,000,000
3.250% notes, issued in June 2019 and due in June 2029
Debt
Interest rate (as a percent)			3.25%	3.25%
Principal amount			$ 500,000,000
Total principal amount			$ 500,000,000				500,000,000
3.100% notes, $600 issued December 2019, of which $596 was exchanged in November 2021, both due in December 2029
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
Amount exchanged	$ 596,000,000	$ 596,000,000
Total principal amount			$ 599,000,000				599,000,000
Early participation premium per $1000 of principal									$ 30
3.160% notes, issued in June 2022 and due in June 2030
Debt
Interest rate (as a percent)			3.16%	3.16%
Principal amount | £				£ 140,000,000
Total principal amount			$ 169,000,000				0
1.625% Notes due 2030
Debt
Interest rate (as a percent)			1.625%	1.625%							1.625%	0.01625%
Principal amount | £				£ 400,000,000								£ 400,000,000
Total principal amount			$ 482,000,000				541,000,000
3.250% notes, $600 issued in May 2020 and $350 issued in July 2020, both due in January 2031
Debt
Interest rate (as a percent)			3.25%	3.25%
Principal amount			$ 950,000,000
Total principal amount			950,000,000				950,000,000
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
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
3.180% notes, issued in June 2022 and due in June 2032
Debt
Interest rate (as a percent)			3.18%	3.18%
Principal amount | £				£ 345,000,000
Total principal amount			$ 416,000,000				0
5.625% notes, issued in October 2022 and due in October 2032
Debt
Interest rate (as a percent)			5.625%	5.625%	5.625%
Principal amount			$ 750,000,000		$ 750,000,000
Total principal amount			$ 750,000,000				0
2.850% notes, $700 issued November 2020, of which $699 was exchanged in November 2021, both due in December 2032
Debt
Interest rate (as a percent)	2.85%	2.85%	2.85%	2.85%
Principal amount			$ 700,000,000
Amount exchanged	$ 699,000,000	$ 699,000,000
Total principal amount			$ 700,000,000				$ 700,000,000
1.800% notes, issued in December 2020 and due in March 2033
Debt
Interest rate (as a percent)			1.80%	1.80%			1.80%	1.80%
Principal amount			$ 400,000,000				$ 400,000,000				$ 400,000,000
Total principal amount			$ 400,000,000				$ 400,000,000
1.750% notes, issued in July 2021 and due in July 2033
Debt
Interest rate (as a percent)			1.75%	1.75%			1.75%	1.75%		0.0175%
Principal amount | £				£ 350,000,000				£ 350,000,000		£ 350,000,000
Total principal amount			$ 422,000,000				$ 474,000,000
2.730% notes, issued in May 2019 and due in May 2034
Debt
Interest rate (as a percent)			2.73%	2.73%
Principal amount | £				£ 315,000,000
Total principal amount			$ 379,000,000				427,000,000
5.875% bonds, $100 issued in March 2005 and $150 issued in June 2011, both due in March 2035
Debt
Interest rate (as a percent)			5.875%	5.875%
Principal amount			$ 250,000,000
Total principal amount			250,000,000				250,000,000
5.875% bonds, issued in March 2005 and due in March 2035
Debt
Principal amount			100,000,000
5.875% bonds, issued in June 2011 and due in March 2035
Debt
Principal amount			$ 150,000,000
3.390% notes due 2037
Debt
Interest rate (as a percent)			3.39%	3.39%
Principal amount | £				£ 115,000,000
Total principal amount			$ 138,000,000				0
2.500% notes, issued in January 2022 and due in January 2042
Debt
Interest rate (as a percent)			2.50%	2.50%		0.025%
Principal amount | £				£ 250,000,000		£ 250,000,000
Total principal amount			$ 301,000,000				0
4.650% notes, $300 issued in March 2017 and $250 issued in December 2017, both due in March 2047
Debt
Interest rate (as a percent)			4.65%	4.65%
Principal amount			$ 550,000,000
Total principal amount			550,000,000				550,000,000
4.650% notes, issued in March 2017 and due in March 2047
Debt
Principal amount			300,000,000
4.650% notes, issued in December 2017 and due in March 2047
Debt
Principal amount			250,000,000
VEREIT OP notes not exchanged
Debt
Total principal amount			$ 39,100,000				$ 39,100,000