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Long-Term Debt (Summary of Long-Term Debt) (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Debt Instrument [Line Items] |  |
Long-term debt | $ 24,926 | $ 26,233
Less current portion of long-term debt | 1,527 | 1,121
Long-term debt excluding current portion | 23,399 | 25,112
Notes 2.350% To 10.20%, interest payable semi-annually, due through 2061 [Member] | Notes [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt | $ 21,784 | $ 22,888
Notes 2.350% To 10.20%, interest payable semi-annually, due through 2061 [Member] | Notes [Member] | Minimum [Member] |  |
Debt Instrument [Line Items] |  |
Interest Rate | 2.35% |
Notes 2.350% To 10.20%, interest payable semi-annually, due through 2061 [Member] | Notes [Member] | Maximum [Member] |  |
Debt Instrument [Line Items] |  |
Interest Rate | 10.20% |
Notes 2.350% To 10.20%, interest payable semi-annually, due through 2061 [Member] | Notes [Member] | Weighted Average [Member] |  |
Debt Instrument [Line Items] |  |
Weighted average interest rate | 4.60% | 4.50%
USD Debenture, 7.750%, Maturing January 2027 [Member] | Debenture [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt | $ 42 | $ 42
Interest Rate | 7.75% |
Euro notes, 1.000% to 3.125%, interest payable annually, due through 2031 [Member] | Notes Payable, Other Payables [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt | $ 3,100 | $ 3,303
Euro notes, 1.000% to 3.125%, interest payable annually, due through 2031 [Member] | Notes Payable, Other Payables [Member] | Minimum [Member] |  |
Debt Instrument [Line Items] |  |
Interest Rate | 1.70% |
Euro notes, 1.000% to 3.125%, interest payable annually, due through 2031 [Member] | Notes Payable, Other Payables [Member] | Maximum [Member] |  |
Debt Instrument [Line Items] |  |
Interest Rate | 3.125% |
Euro notes, 1.000% to 3.125%, interest payable annually, due through 2031 [Member] | Notes Payable, Other Payables [Member] | Weighted Average [Member] |  |
Debt Instrument [Line Items] |  |
Weighted average interest rate | 2.50% | 2.50%

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