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Accumulated Other Comprehensive Income (Loss) - Schedule of Changes in Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |  |  |
Balance, beginning of period |  |  | $ 13,876 |
Net current period other comprehensive income (loss) | $ 708 | $ (124) | 1,112 | $ (419)
Balance, end of period | 14,404 |  | 14,404 |
Foreign Currency Translation Adjustments |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |  |  |
Balance, beginning of period | (2,022) | (1,945) | (2,426) | (1,652)
OCI before reclassifications | 710 | (132) | 1,114 | (425)
Reclassifications due to business divestitures | 48 | 4 | 48 | 4
Amounts reclassified from AOCI | 0 | 0 | 0 | 0
Net current period other comprehensive income (loss) | 758 | (128) | 1,162 | (421)
Balance, end of period | (1,264) | (2,073) | (1,264) | (2,073)
Gains (Losses) on Derivatives Qualifying as Hedges |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |  |  |
Balance, beginning of period | (3) | (6) | (2) | 1
OCI before reclassifications | 0 | 1 | (1) | (6)
Reclassifications due to business divestitures | 0 | 0 | 0 | 0
Amounts reclassified from AOCI | 0 | 0 | 0 | 0
Net current period other comprehensive income (loss) | 0 | 1 | (1) | (6)
Balance, end of period | (3) | (5) | (3) | (5)
Pension and Postretirement Liability Adjustment |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |  |  |
Balance, beginning of period | (98) | (240) | (99) | (245)
OCI before reclassifications | (1) | 1 | (1) | 4
Reclassifications due to business divestitures | (50) | 0 | (50) | 0
Amounts reclassified from AOCI | (1) | (2) | (2) | (4)
Net current period other comprehensive income (loss) | (50) | 3 | (49) | 8
Balance, end of period | (148) | (237) | (148) | (237)
AOCI Attributable to Parent |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |  |  |
Balance, beginning of period | (2,123) | (2,191) | (2,527) | (1,896)
OCI before reclassifications | 709 | (130) | 1,112 | (427)
Reclassifications due to business divestitures | (2) | 4 | (2) | 4
Amounts reclassified from AOCI | (1) | (2) | (2) | (4)
Net current period other comprehensive income (loss) | 708 | (124) | 1,112 | (419)
Balance, end of period | $ (1,415) | $ (2,315) | $ (1,415) | $ (2,315)

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