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OTHER - Lockheed Martin Ventures Fund (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 28, 2021	Dec. 31, 2020
Accounting Policies [Abstract]
Carrying amount of investments held in Lockheed Martin Venture Fund	$ 243	$ 173
Unrealized gain recognized for changes in fair value	68
Unrealized gain recognized for changes in fair value, net of tax	$ 51
Unrealized gain recognized for changes in fair value, net of tax (in dollars per share)	$ 0.18

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Equity Securities, FV-NI, Unrealized Gain (Loss), Net of Tax

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Equity Securities, FV-NI, Unrealized Gain (Loss), Net of Tax, Amount Per Share

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Amount of unrealized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04(3)(d))
-URI http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 321
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=120269885&loc=SL75117546-209714

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Amount of investment in equity security without readily determinable fair value.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 321
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=120269885&loc=SL75117539-209714

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