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| Quarter Ended | Available-for-Sale Debt Securities | | Cash Flow Hedges | | Net Investment Hedges | | Translation Adjustment and Other | | Total |
| March 29, 2026 | | | | | | | | | |
| Net gains/(losses) in AOCI, beginning of period | $ | 1.2 | | | $ | 30.9 | | | $ | 378.8 | | | $ | (836.8) | | | $ | (425.9) | |
| Net gains/(losses) recognized in OCI before reclassifications | (2.1) | | | 14.5 | | | 6.3 | | | (2.9) | | | 15.8 | |
| Net (gains)/losses reclassified from AOCI to earnings | 0.2 | | | 10.5 | | | (18.0) | | | — | | | (7.3) | |
| Other comprehensive income/(loss) attributable to Starbucks | (1.9) | | | 25.0 | | | (11.7) | | | (2.9) | | | 8.5 | |
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| Other comprehensive income/(loss) attributable to NCI | — | | | — | | | — | | | 0.1 | | | 0.1 | |
| Net gains/(losses) in AOCI, end of period | $ | (0.7) | | | $ | 55.9 | | | $ | 367.1 | | | $ | (839.6) | | | $ | (417.3) | |
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| March 30, 2025 | | | | | | | | | |
| Net gains/(losses) in AOCI, beginning of period | $ | (3.7) | | | $ | 94.2 | | | $ | 382.1 | | | $ | (1,056.2) | | | $ | (583.6) | |
| Net gains/(losses) recognized in OCI before reclassifications | 1.7 | | | (4.9) | | | 9.8 | | | 90.6 | | | 97.2 | |
| Net (gains)/losses reclassified from AOCI to earnings | 0.2 | | | (22.0) | | | (20.8) | | | — | | | (42.6) | |
| Other comprehensive income/(loss) attributable to Starbucks | 1.9 | | | (26.9) | | | (11.0) | | | 90.6 | | | 54.6 | |
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| Net gains/(losses) in AOCI, end of period | $ | (1.8) | | | $ | 67.3 | | | $ | 371.1 | | | $ | (965.6) | | | $ | (529.0) | |
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| Two Quarters Ended | Available-for-Sale Debt Securities | | Cash Flow Hedges | | Net Investment Hedges | | Translation Adjustment and Other | | Total |
| March 29, 2026 | | | | | | | | | |
| Net gains/(losses) in AOCI, beginning of period | $ | 0.5 | | | $ | 40.9 | | | $ | 357.4 | | | $ | (858.1) | | | $ | (459.3) | |
| Net gains/(losses) recognized in OCI before reclassifications | (1.6) | | | 10.0 | | | 47.7 | | | 18.3 | | | 74.4 | |
| Net (gains)/losses reclassified from AOCI to earnings | 0.4 | | | 5.0 | | | (38.0) | | | | | (32.6) | |
| Other comprehensive income/(loss) attributable to Starbucks | (1.2) | | | 15.0 | | | 9.7 | | | 18.3 | | | 41.8 | |
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| Other comprehensive income/(loss) attributable to NCI | — | | | — | | | — | | | 0.2 | | | 0.2 | |
| Net gains/(losses) in AOCI, end of period | $ | (0.7) | | | $ | 55.9 | | | $ | 367.1 | | | $ | (839.6) | | | $ | (417.3) | |
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| March 30, 2025 | | | | | | | | | |
| Net gains/(losses) in AOCI, beginning of period | $ | (2.3) | | | $ | 70.5 | | | $ | 247.7 | | | $ | (744.7) | | | $ | (428.8) | |
| Net gains/(losses) recognized in OCI before reclassifications | 0.1 | | | 46.6 | | | 164.9 | | | (220.6) | | | (9.0) | |
| Net (gains)/losses reclassified from AOCI to earnings | 0.4 | | | (49.8) | | | (41.5) | | | — | | | (90.9) | |
| Other comprehensive income/(loss) attributable to Starbucks | 0.5 | | | (3.2) | | | 123.4 | | | (220.6) | | | (99.9) | |
| Other comprehensive income/(loss) attributable to NCI | — | | | — | | | — | | | (0.3) | | | (0.3) | |
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| Net gains/(losses) in AOCI, end of period | $ | (1.8) | | | $ | 67.3 | | | $ | 371.1 | | | $ | (965.6) | | | $ | (529.0) | |
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