Debt - Debt Summary (Parenthetical) (Detail) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Weighted Average Interest Rate	2.60%	2.50%
Debt	$ 25,153,342	$ 23,875,961
Percentage of outstanding debt	100.00%	100.00%
GBP
Debt Instrument [Line Items]
Weighted Average Interest Rate	2.10%	2.10%
Debt	$ 1,263,807	$ 1,228,483
Percentage of outstanding debt	5.00%	5.10%
CAD
Debt Instrument [Line Items]
Weighted Average Interest Rate	4.90%	4.50%
Debt	$ 813,415	$ 814,491
Percentage of outstanding debt	3.20%	3.40%
EUR
Debt Instrument [Line Items]
Weighted Average Interest Rate	1.70%	1.30%
Debt	$ 9,100,801	$ 7,991,301
Percentage of outstanding debt	36.20%	33.50%
JPY
Debt Instrument [Line Items]
Weighted Average Interest Rate	1.00%	1.00%
Debt	$ 3,367,643	$ 3,308,009
Percentage of outstanding debt	13.40%	13.90%
USD
Debt Instrument [Line Items]
Weighted Average Interest Rate	3.60%	3.60%
Debt	$ 10,607,676	$ 10,533,677
Percentage of outstanding debt	42.20%	44.10%