Consolidated Balance Sheets (Unaudited) (USD $) In Millions, unless otherwise specified	Mar. 30, 2014	Dec. 29, 2013
CURRENT ASSETS:
Cash and equivalents	$ 57.9	$ 125.7
Trade accounts receivable, less allowances of $10.2 and $9.9, respectively	1,080.2	1,023.1
Prepaid expenses and other current assets	61.6	52.2
Deferred taxes	29.2	35.5
Total current assets	1,228.9	1,236.5
PROPERTY AND EQUIPMENT:
Property and equipment	352.4	350.5
Accumulated depreciation	(261.6)	(258.5)
Net property and equipment	90.8	92.0
NONCURRENT DEFERRED TAXES	129.3	121.7
GOODWILL, NET	90.3	90.3
OTHER ASSETS	265.1	258.1
TOTAL ASSETS	1,804.4	1,798.6
CURRENT LIABILITIES:
Short-term borrowings	54.8	28.3
Accounts payable and accrued liabilities	321.7	342.4
Accrued payroll and related taxes	291.2	294.9
Accrued insurance	25.5	27.6
Income and other taxes	68.4	68.8
Total current liabilities	761.6	762.0
NONCURRENT LIABILITIES:
Accrued insurance	45.4	46.0
Accrued retirement benefits	140.4	134.7
Other long-term liabilities	31.8	33.3
Total noncurrent liabilities	217.6	214.0
Treasury stock, at cost
Paid-in capital	27.5	26.0
Earnings invested in the business	751.9	751.3
Accumulated other comprehensive income	61.7	61.4
Total stockholders' equity	825.2	822.6
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	1,804.4	1,798.6
Common Class A [Member] | Stockholders Equity [Member]
Capital stock, $1.00 par value
Common stock, value	36.6	36.6
Treasury stock, at cost
Treasury stock, value	(55.4)	(55.6)
Common Class A [Member]
Treasury stock, at cost
Total stockholders' equity	36.6	36.6
Common Class B [Member] | Stockholders Equity [Member]
Capital stock, $1.00 par value
Common stock, value	3.5	3.5
Treasury stock, at cost
Treasury stock, value	(0.6)	(0.6)
Common Class B [Member]
Treasury stock, at cost
Total stockholders' equity	$ 3.5	$ 3.5