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Fair Value Measurements - Narrative (Details) - USD ($)
1 Months Ended 3 Months Ended
Apr. 30, 2022
Mar. 31, 2023
Mar. 31, 2022
Dec. 31, 2022
Revolving Credit Facility | Variable-Rate Revolving Credit Facilities Due March 2023 | Line of Credit | Lending Joint Ventures        
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]        
Line of credit facility, borrowing capacity increase $ 75,000,000      
Carrying value        
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]        
Total debt   $ 21,600,000,000   $ 20,600,000,000
Level 2 | Fair value        
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]        
Total debt   20,600,000,000   19,200,000,000
Financial Guarantee        
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]        
Carrying value of non-contingent liability   520,000,000    
Financial Guarantee | Lending Joint Ventures        
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]        
Carrying value of non-contingent liability   38,000,000   $ 40,000,000
Other (expense) income   $ 2,000,000 $ 3,000,000