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Debt and Letters of Credit - Narrative (Details)
€ in Millions, $ in Millions
1 Months Ended 6 Months Ended
Jan. 31, 2023
EUR (€)
Jun. 30, 2023
USD ($)
Jun. 30, 2023
EUR (€)
2023 Notes      
Financing Arrangements      
Repayments of debt | € € 140    
Repayments of debt expected in next fiscal period | € € 129    
Lines of Credit      
Financing Arrangements      
Amount outstanding under credit facilities   $ 451  
Lines of Credit | Committed Line of Credit      
Financing Arrangements      
Current borrowing capacity   776  
Lines of Credit | Committed Line of Credit | Revolving Loan And Letter Of Credit Facility Agreement      
Financing Arrangements      
Maximum borrowing capacity   1,800  
Lines of Credit | Committed Line of Credit | Revolving Loan And Letter Of Credit Facility Agreement | Subsidiaries      
Financing Arrangements      
Covenant minimum liquidity   1,100  
Covenant minimum liquidity, after repayments of debt   $ 1,000  
Lines of Credit | Committed Line of Credit | Revolving Loan And Letter Of Credit Facility Agreement | Minimum      
Financing Arrangements      
Ratio of consolidated debt to tangible net worth (as a percent)   60.00%  
Lines of Credit | Committed Line of Credit | Revolving Loan And Letter Of Credit Facility Agreement | Maximum      
Financing Arrangements      
Ratio of consolidated debt to tangible net worth (as a percent)   100.00%  
Lines of Credit | Committed Line of Credit | Revolving Loan And Letter Of Credit Facility Agreement | Maximum | Subsidiaries      
Financing Arrangements      
Aggregate amount of debt   $ 750 € 750
Lines of Credit | Uncommitted Line of Credit      
Financing Arrangements      
Amount outstanding under credit facilities   $ 930