Debt And Other Financing Arrangements Revolving Credit Facility (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2014
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 325
Expiration date	Jun. 28, 2018
Credit facilities balance	106.9us-gaap_LineOfCredit
Remaining borrowing capacity	$ 218.1
Covenant terms	The revolving facility is guaranteed by certain of Con-way's material domestic subsidiaries and contains two financial covenants: (i) a leverage ratio and (ii) a fixed-charge coverage ratio. There are also various restrictive covenants, including limitations on (i) the incurrence of liens, (ii) consolidations, mergers and asset sales, and (iii) the incurrence of additional subsidiary indebtedness.
Minimum [Member]
Line of Credit Facility [Line Items]
Commitment fee percentage	0.18%
Maximum [Member]
Line of Credit Facility [Line Items]
Commitment fee percentage	0.35%

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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