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Income Taxes - Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Deferred tax assets:
Tax credits	$ 113.4	$ 106.6
Inventory, other reserves and accruals	165.9	162.0
Intangibles, net	1,546.0	3,380.0
Net operating loss	2,080.3	130.4
Share-based compensation	23.3	23.8
Other	103.1	103.7
Valuation allowance	(1,753.9)	(1.1)
Total deferred tax assets	2,278.1	3,905.4
Deferred tax liabilities:
Purchased intangible assets	(396.2)	(350.3)
GILTI	(1,143.7)	(1,381.6)
Tax credits	(174.6)	(1,617.2)
Depreciation, amortization and other	(227.0)	(135.0)
Total deferred tax liabilities	$ (1,941.5)	$ (3,484.1)

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