Geographic and Segment Information (Tables)

12 Months Ended

Mar. 31, 2019

Segment Reporting [Abstract]

Schedule of Revenues and Gross Profit for Each Segment

The following table represents net sales and gross profit for each segment (in millions):

	Years ended March 31,
	2019				2018				2017
	Net Sales		Gross Profit		Net Sales		Gross Profit		Net Sales		Gross Profit
Semiconductor products	$	5,217.1	$	2,798.9	$	3,876.0	$	2,315.9	$	3,316.6	$	1,666.0
Technology licensing	132.4		132.4		104.8		104.8		91.2		91.2
Total	$	5,349.5	$	2,931.3	$	3,980.8	$	2,420.7	$	3,407.8	$	1,757.2

Schedule of Disclosure on Geographic Areas, Long-Lived Assets in Individual Foreign Countries by Country

Identifiable long-lived assets (consisting of property, plant and equipment net of accumulated amortization) by geographic area are as follows (in millions):

	March 31,
	2019		2018
United States	$	521.1	$	393.3
Thailand	209.3		215.5
Various other countries	266.3		159.1
Total long-lived assets	$	996.7	$	767.9