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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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No definition available.

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Number of new stock issued during the period.

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Stock Transactions And Stock-Based Compensation (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended		9 Months Ended
	Sep. 20, 2019	Sep. 27, 2019	Sep. 28, 2018	Sep. 27, 2019	Sep. 28, 2018	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, shares authorized (in shares)		500,000,000.0		500,000,000.0		100
Common stock, par value (in USD per share)		$ 0.01		$ 0.01		$ 0.01
Preferred shares authorized (in shares)		15,000,000		15,000,000		0
Common stock, shares outstanding (in shares)		158,700,000		158,700,000		100
Issuance of common stock	30,800,000
Restricted stock units (“RSUs”)/performance stock units (“PSUs”)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation cost related to RSUs/PSUs		$ 24		$ 24
Weighted average period of unrecognized compensation cost				3 years
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation cost related to RSUs/PSUs		$ 21		$ 21
Weighted average period of unrecognized compensation cost				3 years
Common stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of common stock		30,800,000	0	30,800,000	0
IPO
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of common stock	30,800,000