Senior Secured Notes due 2025 (Details) - USD ($) $ in Millions	12 Months Ended
Jan. 01, 2022	Jan. 02, 2021
Debt Instrument [Line Items]
Borrowings under facility	$ 5,011	$ 5,748
Senior Secured Notes due 2025 \| Senior notes
Debt Instrument [Line Items]
Borrowings under facility	989	987
Unamortized deferred financing costs	$ 11	$ 13
Interest rate	6.25%
Senior Secured Notes due 2025 \| Senior notes \| Debt redemption, period three
Debt Instrument [Line Items]
Redemption price percentage of principal amount	100.00%
Senior Secured Notes due 2025 \| Senior notes \| Debt redemption, period one
Debt Instrument [Line Items]
Redemption price percentage of principal amount	103.125%
Senior Secured Notes due 2025 \| Senior notes \| Debt redemption, period two
Debt Instrument [Line Items]
Redemption price percentage of principal amount	101.563%

Contractual interest rate for funds borrowed, under the debt agreement.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph e
-URI http://asc.fasb.org/extlink&oid=123599511&loc=d3e64711-112823

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The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
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-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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