Revolving Credit Facility and Commercial Paper Programs (Details) € in Millions	3 Months Ended
	Mar. 31, 2024 USD ($) currency extension	Mar. 31, 2023	Dec. 31, 2023 USD ($)	Dec. 31, 2023 EUR (€)
Credit facility
Credit facility origination costs	$ 11,030,000		$ 12,264,000
Commercial paper borrowings outstanding	$ 216,000,000		764,400,000	€ 583.0
Weighted average interest rate at the end of the period (as a percent)	4.20%
Unsecured term loans: | U.S. Dollar-Denominated Unsecured Commercial Paper Program
Credit facility
Maximum aggregate capacity of commercial paper program	$ 1,500,000,000
Unsecured term loans: | Euro-Denominated Unsecured Commercial Paper Program
Credit facility
Maximum aggregate capacity of commercial paper program	$ 1,500,000,000
Revolving credit facility
Credit facility
Weighted average interest rate at the end of the period (as a percent)	5.90%
Revolving credit facility | Unsecured term loans:
Credit facility
Current borrowing capacity	$ 3,440,000,000
Outstanding balance	$ 800,000,000		0
Weighted average borrowing rate during the period (as a percent)	6.20%	3.70%
Credit facility origination costs	$ 11,000,000		$ 12,300,000
Revolving credit facility | Unsecured term loans: | Multicurrency Credit Facility
Credit facility
Maximum borrowing capacity	$ 4,250,000,000
Number of extensions | extension	2
Term of extension option	6 months
Number of currencies allowable per facility | currency	14
Credit facility expansion option	$ 1,000,000,000
Revolving credit facility | Unsecured term loans: | Secured Overnight Financing Rate (SOFR) | Multicurrency Credit Facility
Credit facility
Basis spread on variable rate (as a percent)	0.725%
Basis spread on variable rate, adjustment share (as a percent)	0.10%
Commitment fee (as a percent)	0.125%
All-in drawn variable interest rate (as a percent)	0.95%
Revolving credit facility | Unsecured term loans: | Sterling Overnight Indexed Average (SONIA) | Multicurrency Credit Facility
Credit facility
Basis spread on variable rate (as a percent)	0.725%
Basis spread on variable rate, adjustment share (as a percent)	0.0326%
Commitment fee (as a percent)	0.125%
All-in drawn variable interest rate (as a percent)	0.8826%
Revolving credit facility | Unsecured term loans: | Euro Interbank Offered Rate (EURIBOR) | Multicurrency Credit Facility
Credit facility
Basis spread on variable rate (as a percent)	0.725%
Commitment fee (as a percent)	0.125%
All-in drawn variable interest rate (as a percent)	0.85%
Commercial paper
Credit facility
Weighted average borrowing rate during the period (as a percent)	4.50%	3.50%