Letters of Credit, Total, Amount

No definition available.

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- Definition

Loss Contingency, Allegations, Percentage of Decline in Contribution to Multiemployer Defined Benefit Plan

+ References

No definition available.

+ Details

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- Definition

The expense for the present value of future payments related to the withdrawal from multi-employer pension plan(s).

+ References

No definition available.

+ Details

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- Definition

Amount of assets pledged to secure a debt instrument.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount of loss contingency liability.

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- Definition

Amount of cash outflow reducing loss contingency liability.

+ References

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- Definition

The value (monetary amount) of the award the plaintiff seeks in the legal matter.

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- Definition

Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

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Contingent Liabilities - Narrative (Details) - USD ($)	1 Months Ended			6 Months Ended
Contingent Liabilities - Narrative (Details) - USD ($)	Jul. 29, 2016	Dec. 31, 2014	Sep. 30, 2013	Jun. 30, 2019	Dec. 30, 2018
Loss Contingencies [Line Items]
Gain from pension liability adjustment	$ 5,000,000.0
Letters of credit				$ 45,700,000	$ 48,800,000
Threatened Litigation
Loss Contingencies [Line Items]
Demand for payment		$ 34,000,000	$ 26,000,000
Decline in contributions, percent (more than)			70.00%
Payments related to Initial Assessment				20,700,000
Partial pension withdrawal arbitration liability				1,400,000
Minimum \| Threatened Litigation
Loss Contingencies [Line Items]
Estimate of possible loss				0
Maximum \| Threatened Litigation
Loss Contingencies [Line Items]
Estimate of possible loss				11,000,000
Letter of Credit
Loss Contingencies [Line Items]
Collateral, letters of credit				$ 51,000,000	$ 54,000,000