The following table presents the changes in accumulated other comprehensive loss by component for the years ended December 31, 2025, 2024 and 2023 (in millions): | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Changes related to cash flow derivative hedges | | Changes in defined benefit plans | | Foreign currency translation adjustments | | Accumulated other comprehensive (loss) income | | | | | | | | | | | Accumulated comprehensive loss at January 1, 2023 | | $ | (639) | | | $ | (8) | | | $ | 3 | | | $ | (644) | | | Other comprehensive income (loss) income before reclassifications | | 3 | | | 6 | | | (9) | | | — | | | Amounts reclassified from accumulated other comprehensive loss | | (30) | | | — | | | — | | | (30) | | | Net current-period other comprehensive (loss) income | | (27) | | | 6 | | | (9) | | | (30) | | | | | | | | | | | | Accumulated comprehensive loss at January 1, 2024 | | (666) | | | (2) | | | (6) | | | (674) | | | Other comprehensive (loss) income before reclassifications | | (120) | | | 12 | | | 19 | | | (89) | | | Amounts reclassified from accumulated other comprehensive loss | | (37) | | | — | | | (2) | | | (39) | | | Net current-period other comprehensive (loss) income | | (157) | | | 12 | | | 17 | | | (128) | | | | | | | | | | | | Accumulated comprehensive loss at January 1, 2025 | | (823) | | | 10 | | | 11 | | | (802) | | | Other comprehensive income (loss) before reclassifications | | 216 | | | (4) | | | (24) | | | 188 | | | Amounts reclassified from accumulated other comprehensive loss | | 12 | | | — | | | (2) | | | 10 | | | Net current-period other comprehensive income (loss) | | 228 | | | (4) | | | (26) | | | 198 | | | | | | | | | | | | Accumulated comprehensive loss at December 31, 2025 | | $ | (595) | | | $ | 6 | | | $ | (15) | | | $ | (604) | |
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