Fair Value Measurements - Not Recorded at Fair Value on a Recurring Basis Convertible Debt (Details) - USD ($) $ in Millions	Dec. 27, 2025	Jun. 28, 2025	Mar. 31, 2022	Dec. 31, 2019
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings
Convertible senior notes fair value	$ 1.2
Convertible notes | 2028 Notes
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings
Estimated Fair Value			$ 629.8
Convertible notes | 2026 Notes
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings
Estimated Fair Value				$ 734.8
Convertible notes | Level 3 | Carrying Amount
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings
Estimated Fair Value	3,182.5	$ 2,506.2
Convertible notes | Level 3 | Estimated Fair Value
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings
Estimated Fair Value	10,670.1	3,049.0
Convertible notes | Level 3 | 2032 Notes | Carrying Amount
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings
Estimated Fair Value	1,255.3	0.0
Convertible notes | Level 3 | 2032 Notes | Estimated Fair Value
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings
Estimated Fair Value	2,840.8	0.0
Convertible notes | Level 3 | 2029 Notes | Carrying Amount
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings
Estimated Fair Value	600.6	600.2
Convertible notes | Level 3 | 2029 Notes | Estimated Fair Value
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings
Estimated Fair Value	3,400.1	925.5
Convertible notes | Level 3 | 2028 Notes | Carrying Amount
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings
Estimated Fair Value	858.3	857.7
Convertible notes | Level 3 | 2028 Notes | Estimated Fair Value
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings
Estimated Fair Value	2,584.6	890.2
Convertible notes | Level 3 | 2026 Notes | Carrying Amount
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings
Estimated Fair Value	468.3	1,048.3
Convertible notes | Level 3 | 2026 Notes | Estimated Fair Value
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings
Estimated Fair Value	$ 1,844.6	$ 1,233.3