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Debt and Credit Agreements - Activity Related to Long-Term Debt (Details) - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2024 | Mar. 31, 2023
Movement, Debt Instruments [Roll Forward] |  |
Long-term Debt as of December 31, 2023, Current Portion | $ 558 |
Long-term Debt as of December 31, 2023, Long-term Portion | 17,975 |
Long-term Debt as of December 31, 2023, Total | 18,533 |
Long-term Debt Repaid | (2) | $ (142)
Reclassifications | 0 |
Hedging, Discount, Premium and Other Activity | (30) |
Long-term Debt as of March 31, 2024, Current Portion | 557 |
Long-term Debt as of March 31, 2024, Long-term Portion | 17,944 |
Long-term Debt as of March 31, 2024, Total | 18,501 |
Current Portion |  |
Movement, Debt Instruments [Roll Forward] |  |
Long-term Debt as of December 31, 2023, Current Portion | 558 |
Long-term Debt Repaid | (2) |
Reclassifications | 1 |
Hedging, Discount, Premium and Other Activity | 0 |
Long-term Debt as of March 31, 2024, Current Portion | 557 |
Long-term Portion |  |
Movement, Debt Instruments [Roll Forward] |  |
Long-term Debt as of December 31, 2023, Long-term Portion | 17,975 |
Long-term Debt Repaid | 0 |
Reclassifications | (1) |
Hedging, Discount, Premium and Other Activity | (30) |
Long-term Debt as of March 31, 2024, Long-term Portion | $ 17,944 |

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- Definition Long-term Debt, Increase (Decrease) Due To Reclassifications + References No definition available. + Details
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- Definition Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1F -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1F Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -Publisher FASB -URI https://asc.fasb.org//1943274/2147482925/835-30-45-1A Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.8) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483621/220-10-S99-2 + Details
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