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Long-term Corporate Debt and Borrowing Arrangements (Narrative) (Details) - USD ($)	Jun. 30, 2025	May 31, 2025	Feb. 28, 2025	Dec. 31, 2024
Debt Instrument [Line Items]
Line of credit balance	$ 21,678,000,000
Line of Credit \| SBLC Facility
Debt Instrument [Line Items]
Line of credit balance	463,000,000
Letters of credit issued	463,000,000
Floating Rate Term Loan \| Loans Payable
Debt Instrument [Line Items]
Long-term debt			$ 500,000,000
8.375% Senior Notes \| Senior Notes
Debt Instrument [Line Items]
Long-term debt	600,000,000			$ 0
Debt issued		$ 600,000,000
5.750% Senior Notes \| Senior Notes
Debt Instrument [Line Items]
Long-term debt	643,000,000			$ 740,000,000
Debt repurchased	$ 100,000,000