Consolidated Balance Sheets (Unaudited) (USD $) In Millions, unless otherwise specified	Sep. 29, 2013	Dec. 30, 2012
CURRENT ASSETS:
Cash and equivalents	$ 73.9	$ 76.3
Trade accounts receivable, less allowances of $10.0 and $10.4, respectively	1,071.8	1,013.9
Prepaid expenses and other current assets	62.0	57.5
Deferred taxes	40.3	44.9
Total current assets	1,248.0	1,192.6
PROPERTY AND EQUIPMENT:
Property and equipment	343.0	337.6
Accumulated depreciation	(255.3)	(247.7)
Net property and equipment	87.7	89.9
NONCURRENT DEFERRED TAXES	104.5	82.8
GOODWILL, NET	90.3	89.5
OTHER ASSETS	241.0	180.9
TOTAL ASSETS	1,771.5	1,635.7
CURRENT LIABILITIES:
Short-term borrowings	58.0	64.1
Accounts payable and accrued liabilities	308.9	295.6
Accrued payroll and related taxes	300.9	264.5
Accrued insurance	30.7	32.8
Income and other taxes	71.5	65.3
Total current liabilities	770.0	722.3
NONCURRENT LIABILITIES:
Accrued insurance	40.7	43.5
Accrued retirement benefits	129.3	111.0
Other long-term liabilities	28.0	17.9
Total noncurrent liabilities	198.0	172.4
Treasury stock, at cost
Paid-in capital	26.1	27.1
Earnings invested in the business	736.0	700.0
Accumulated other comprehensive income	58.8	35.4
Total stockholders' equity	803.5	741.0
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	1,771.5	1,635.7
Common Class A [Member] | Stockholders Equity [Member]
Capital stock, $1.00 par value
Common stock	36.6	36.6
Treasury stock, at cost
Treasury Stock	(56.9)	(61.0)
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	3.5	3.5
Treasury stock, at cost
Treasury Stock	(0.6)	(0.6)
Common Class B [Member]
Treasury stock, at cost
Total stockholders' equity	$ 3.5	$ 3.5