Financial Instruments - Production Financing Loans (Details) - USD ($) $ in Millions	Mar. 28, 2021	Dec. 27, 2020	Mar. 29, 2020
Debt Disclosure [Abstract]
Production financing held by production subsidiaries	$ 201.8	$ 165.5	$ 175.6
Other loans	7.9	5.4	9.4
Total	209.7	170.9	185.0
Non-current	82.9	62.9	141.1
Current	118.9	102.6	34.5
Total	$ 201.8	$ 165.5	$ 175.6

Amount of long-term loans classified as other, payable within one year or the operating cycle, if longer.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.20)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Name:	us-gaap_OtherLoansPayableCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant