Fair Value Measurements - Investment by Maturity Dates (Details) $ in Millions |
Jun. 30, 2026
USD ($)
|
|---|---|
| Fair Value Disclosures [Abstract] | |
| Due in 1 year or less | $ 4,365.2 |
| Due in 1 to 3 years | 6,687.9 |
| Total debt securities | $ 11,053.1 |
| X | ||||||||||
- Definition Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One Through Two No definition available.
|
| X | ||||||||||
- Definition Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- References No definition available.
|