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Segment Information - Reconciliation of Segments Operating Income to Consolidated Income (Detail) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Segment Reporting Information [Line Items] |  |
Operating income | $ 7,521 | $ 7,584
Other components of net periodic benefit charges | (8) | (62)
Legacy legal matter | (106) | 0
Equity in earnings (losses) of unconsolidated businesses | (9) | 9
Other income, net | 198 | 114
Interest expense | (1,635) | (1,207)
Income Before Provision For Income Taxes | 6,075 | 6,500
Operating Segments |  |
Segment Reporting Information [Line Items] |  |
Operating income | 7,771 | 7,650
Corporate and other |  |
Segment Reporting Information [Line Items] |  |
Operating income | $ (136) | $ (4)

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