Revenues - Schedule of Changes in Estimated Contract Earnings (Details) - USD ($) $ / shares in Units, $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Jul. 03, 2026 |
Jun. 27, 2025 |
Jul. 03, 2026 |
Jun. 27, 2025 |
|
| Revenue from Contract with Customer [Abstract] | ||||
| Favorable earnings at completion adjustments | $ 84 | $ 48 | $ 203 | $ 98 |
| Unfavorable earnings at completion adjustments | (46) | (35) | (120) | (58) |
| Net favorable adjustments | $ 38 | $ 13 | $ 83 | $ 40 |
| Impact on diluted earnings per share attributable to common shareholders (in dollars per share) | $ 0.12 | $ 0.04 | $ 0.27 | $ 0.13 |