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Debt - Schedule of Current Portion of Debt (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Debt Instrument [Line Items] |  |
Current portion of debt | $ 2,009 | $ 4,049
$3.5 billion credit facility due August 20, 2027 |  |
Debt Instrument [Line Items] |  |
Current portion of debt | 0 | 0
Maximum borrowing capacity | 3,500 |
Commercial paper notes |  |
Debt Instrument [Line Items] |  |
Current portion of debt | 331 | $ 1,989
Maximum borrowing capacity | 3,500 |
4.15%, due February 2024 | Senior Notes |  |
Debt Instrument [Line Items] |  |
Interest rate, stated percentage |  | 4.15%
Current portion of debt | 0 | $ 650
4.30%, due May 2024 | Senior Notes |  |
Debt Instrument [Line Items] |  |
Interest rate, stated percentage |  | 4.30%
Current portion of debt | 0 | $ 600
4.25%, due September 2024 | Senior Notes |  |
Debt Instrument [Line Items] |  |
Interest rate, stated percentage |  | 4.25%
Current portion of debt | $ 0 | $ 650
4.30%, due June 2025 | Senior Notes |  |
Debt Instrument [Line Items] |  |
Interest rate, stated percentage | 4.30% |
Current portion of debt | $ 1,500 | 0
Trust I Preferred Securities, 4.75%, due March 2028(d) | Capital Trust I |  |
Debt Instrument [Line Items] |  |
Interest rate, stated percentage | 4.75% |
Current portion of debt | $ 111 | 111
Current portion of other debt |  |
Debt Instrument [Line Items] |  |
Current portion of debt | $ 67 | $ 49

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