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Long-Term Debt and Short-Term Borrowings - Long-Term Debt (Details) € in Millions | Dec. 31, 2024 USD ($) | Dec. 31, 2024 EUR (€) | Dec. 31, 2023 USD ($) | Dec. 31, 2021 USD ($)
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Long-Term Debt |  |  |  |
Effective Interest Rate |  |  |  |
Total long-term debt | $ 13,044,000,000 |  | $ 14,240,000,000 |
Less: current portion of long-term debt | 1,919,000,000 |  | 1,152,000,000 |
Long-term debt (excluding current portion) | $ 11,125,000,000 |  | 13,088,000,000 |
Fixed rate medium term notes due 2024 |  |  |  |
Long-Term Debt |  |  |  |
Effective Interest Rate | 0.00% | 0.00% |  |
Total long-term debt | $ 0 |  | 300,000,000 |
Fixed rate medium term notes due 2024 |  |  |  |
Long-Term Debt |  |  |  |
Effective Interest Rate | 0.00% | 0.00% |  |
Total long-term debt | $ 0 |  | 500,000,000 |
Floating rate medium term notes due 2024 |  |  |  |
Long-Term Debt |  |  |  |
Effective Interest Rate | 0.00% | 0.00% |  |
Total long-term debt | $ 0 |  | 300,000,000 |
Fixed rate registered note due 2025 |  |  |  |
Long-Term Debt |  |  |  |
Principal amount | $ 750,000,000 |  |  |
Effective Interest Rate | 2.02% | 2.02% |  |
Total long-term debt | $ 750,000,000 |  | 748,000,000 |
Fixed rate registered note due 2025 |  |  |  |
Long-Term Debt |  |  |  |
Principal amount | $ 500,000,000 |  |  |
Effective Interest Rate | 2.66% | 2.66% |  |
Total long-term debt | $ 500,000,000 |  | 499,000,000 |
Fixed rate medium term note due 2025 |  |  |  |
Long-Term Debt |  |  |  |
Principal amount | $ 550,000,000 |  |  |
Effective Interest Rate | 3.03% | 3.03% |  |
Total long-term debt | $ 550,000,000 |  | 549,000,000 |
Fixed rate medium term note due 2026 |  |  |  |
Long-Term Debt |  |  |  |
Principal amount | $ 650,000,000 |  |  |
Effective Interest Rate | 2.29% | 2.29% |  |
Total long-term debt | $ 648,000,000 |  | 647,000,000 |
Fixed rate Euro medium term note due 2026 |  |  |  |
Long-Term Debt |  |  |  |
Principal amount | € |  | € 750 |  |
Effective Interest Rate | 1.53% | 1.53% |  |
Total long-term debt | $ 778,000,000 |  | 821,000,000 |
Floating rate note due 2027 |  |  |  |
Long-Term Debt |  |  |  |
Principal amount | $ 19,000,000 |  |  |
Effective Interest Rate | 5.15% | 5.15% |  |
Total long-term debt | $ 18,000,000 |  | 18,000,000 |
Fixed rate medium term notes due 2027 |  |  |  |
Long-Term Debt |  |  |  |
Principal amount | $ 850,000,000 |  |  |
Effective Interest Rate | 2.91% | 2.91% |  |
Total long-term debt | $ 847,000,000 |  | 846,000,000 |
Fixed rate 30-year debenture due 2028 |  |  |  |
Long-Term Debt |  |  |  |
Principal amount | $ 220,000,000 |  |  |
Effective Interest Rate | 6.38% | 6.38% |  |
Total long-term debt | $ 222,000,000 |  | 223,000,000 |
Floating rate note due 2028 |  |  |  |
Long-Term Debt |  |  |  |
Principal amount | $ 150,000,000 |  |  |
Effective Interest Rate | 7.93% | 7.93% |  |
Total long-term debt | $ 133,000,000 |  | 131,000,000 |
Floating rate note due 2028 |  |  |  |
Long-Term Debt |  |  |  |
Principal amount | $ 150,000,000 |  |  |
Effective Interest Rate | 7.88% | 7.88% |  |
Total long-term debt | $ 133,000,000 |  | 132,000,000 |
Floating rate note due 2028 |  |  |  |
Long-Term Debt |  |  |  |
Principal amount | $ 250,000,000 |  |  |
Effective Interest Rate | 7.22% | 7.22% |  |
Total long-term debt | $ 218,000,000 |  | 216,000,000 |
Floating rate note due 2028 |  |  |  |
Long-Term Debt |  |  |  |
Principal amount | $ 150,000,000 |  |  |
Effective Interest Rate | 7.16% | 7.16% |  |
Total long-term debt | $ 131,000,000 |  | 130,000,000 |
Floating rate note due 2028 |  |  |  |
Long-Term Debt |  |  |  |
Principal amount | $ 100,000,000 |  |  |
Effective Interest Rate | 7.25% | 7.25% |  |
Total long-term debt | $ 87,000,000 |  | 86,000,000 |
Fixed rate medium term note due 2028 |  |  |  |
Long-Term Debt |  |  |  |
Principal amount | $ 600,000,000 |  |  |
Effective Interest Rate | 3.65% | 3.65% |  |
Total long-term debt | $ 599,000,000 |  | 598,000,000 |
Fixed rate medium term note due 2029 |  |  |  |
Long-Term Debt |  |  |  |
Principal amount | $ 800,000,000 |  |  |
Effective Interest Rate | 3.39% | 3.39% |  |
Total long-term debt | $ 798,000,000 |  | 798,000,000 |
Fixed rate registered note due 2029 |  |  |  |
Long-Term Debt |  |  |  |
Principal amount | $ 1,000,000,000 |  |  |
Effective Interest Rate | 2.41% | 2.41% |  |
Total long-term debt | $ 992,000,000 |  | 991,000,000 |
Fixed rate registered note due 2030 |  |  |  |
Long-Term Debt |  |  |  |
Principal amount | $ 600,000,000 |  |  |
Effective Interest Rate | 3.08% | 3.08% |  |
Total long-term debt | $ 597,000,000 |  | 597,000,000 |
Fixed rate Euro medium term note due 2030 |  |  |  |
Long-Term Debt |  |  |  |
Principal amount | $ 500,000,000 |  |  |
Effective Interest Rate | 1.79% | 1.79% |  |
Total long-term debt | $ 515,000,000 |  | 546,000,000 |
Fixed rate Euro medium term notes due 2031 |  |  |  |
Long-Term Debt |  |  |  |
Principal amount | € |  | € 500 |  |
Effective Interest Rate | 1.52% | 1.52% |  |
Total long-term debt | $ 518,000,000 |  | 549,000,000 |
Fixed rate 30-year bond due 2037 |  |  |  |
Long-Term Debt |  |  |  |
Principal amount | $ 555,000,000 |  |  |
Effective Interest Rate | 5.70% | 5.70% |  |
Total long-term debt | $ 552,000,000 |  | 552,000,000 |
Floating rate note due 2040 |  |  |  |
Long-Term Debt |  |  |  |
Principal amount | $ 52,000,000 |  |  |
Effective Interest Rate | 5.20% | 5.20% |  |
Total long-term debt | $ 52,000,000 |  | 52,000,000 |
Floating rate note due 2041 |  |  |  |
Long-Term Debt |  |  |  |
Principal amount | $ 95,000,000 |  |  |
Effective Interest Rate | 5.20% | 5.20% |  |
Total long-term debt | $ 94,000,000 |  | 94,000,000 |
Fixed rate medium term note due 2044 |  |  |  |
Long-Term Debt |  |  |  |
Principal amount | $ 325,000,000 |  |  |
Effective Interest Rate | 4.04% | 4.04% |  |
Total long-term debt | $ 315,000,000 |  | 316,000,000 |
Floating rate note due 2044 |  |  |  |
Long-Term Debt |  |  |  |
Principal amount | $ 49,000,000 |  |  |
Effective Interest Rate | 5.25% | 5.25% |  |
Total long-term debt | $ 49,000,000 |  | 53,000,000 |
Fixed rate medium term note due 2046 |  |  |  |
Long-Term Debt |  |  |  |
Principal amount | $ 500,000,000 |  |  |
Effective Interest Rate | 3.31% | 3.31% |  |
Total long-term debt | $ 478,000,000 |  | 479,000,000 |
Fixed rate medium term note due 2047 |  |  |  |
Long-Term Debt |  |  |  |
Principal amount | $ 500,000,000 |  |  |
Effective Interest Rate | 3.69% | 3.69% |  |
Total long-term debt | $ 493,000,000 |  | 493,000,000 |
Fixed rate medium term note due 2048 |  |  |  |
Long-Term Debt |  |  |  |
Principal amount | $ 650,000,000 |  |  |
Effective Interest Rate | 4.09% | 4.09% |  |
Total long-term debt | $ 638,000,000 |  | 639,000,000 |
Fixed rate medium term note due 2048 |  |  |  |
Long-Term Debt |  |  |  |
Principal amount | $ 500,000,000 |  |  |
Effective Interest Rate | 3.95% | 3.95% |  |
Total long-term debt | $ 506,000,000 |  | 504,000,000 |
Fixed rate registered note due 2049 |  |  |  |
Long-Term Debt |  |  |  |
Principal amount | $ 500,000,000 |  |  | $ 1,000,000,000.0
Effective Interest Rate | 3.36% | 3.36% |  |
Total long-term debt | $ 486,000,000 |  | 486,000,000 |
Fixed rate registered note due 2050 |  |  |  |
Long-Term Debt |  |  |  |
Principal amount | $ 350,000,000 |  |  | $ 650,000,000
Effective Interest Rate | 3.75% | 3.75% |  |
Total long-term debt | $ 346,000,000 |  | 346,000,000 |
Other borrowings |  |  |  |
Long-Term Debt |  |  |  |
Effective Interest Rate | 0.06% | 0.06% |  |
Total long-term debt | $ 1,000,000 |  | $ 1,000,000 |

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