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Commitments, Contingencies and Related Parties Joint Venture Lease Amounts (Details) - Equity Method Investee $ in Millions	Sep. 28, 2018 USD ($)
Guarantor Obligations [Line Items]
Remaining nine months of 2019	$ 313
2020	343
2021	292
2022	157
2023	106
Thereafter	25
Total guarantee obligations	1,236
Payment of Principal Amortization
Guarantor Obligations [Line Items]
Remaining nine months of 2019	280
2020	282
2021	197
2022	110
2023	42
Thereafter	3
Total guarantee obligations	914
Purchase Option Exercise Price at Final Lease Terms
Guarantor Obligations [Line Items]
Remaining nine months of 2019	33
2020	61
2021	95
2022	47
2023	64
Thereafter	22
Total guarantee obligations	$ 322

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Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=82913245&loc=d3e12069-110248

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