Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
OPERATING ACTIVITIES
Net earnings (loss)	$ 128.9	$ 200.3	$ (0.7)
Adjustments to reconcile net earnings (loss) to net cash provided by operating activities:
Depreciation and amortization	32.7	31.5	37.2
Deferred income taxes	(9.0)	22.1	(75.8)
Stock-based compensation expense	24.5	31.2	25.4
Pension contribution	0.0	(60.7)	(11.3)
Pension and SERP expense	5.6	11.8	14.9
Debt extinguishment costs	0.0	0.6	0.0
Restructuring and other related costs	0.0	0.0	81.9
Cash payments related to restructuring costs	(0.3)	(5.1)	(64.8)
Impairment of intangible assets	0.0	0.0	68.6
Environmental and other related costs, net of cash payments	48.8	(6.1)	32.3
Loss/(gain) on sale of a business and other assets	0.0	0.3	(7.0)
Other	(11.3)	9.5	(11.3)
Changes in operating assets and liabilities:
Accounts receivable	30.7	(95.0)	(2.7)
Inventories	(23.8)	(44.5)	45.4
Other operating assets	(5.4)	(17.8)	0.3
Accounts payable	0.0	40.6	11.2
Income taxes	3.6	(1.9)	46.1
Other operating liabilities	(2.4)	(19.3)	13.0
Net cash provided by operating activities	222.6	97.5	202.7
INVESTING ACTIVITIES
Business acquisition, net of cash acquired	(15.1)	0.0	0.0
Additions to property, plant and equipment	(34.4)	(21.7)	(32.4)
Proceeds from sale of a business and other assets	0.0	2.2	38.6
Investment in joint ventures	(8.5)	0.0	(2.1)
Other	(3.5)	(2.7)	(5.1)
Net cash used in investing activities	(61.5)	(22.2)	(1.0)
FINANCING ACTIVITIES
Net borrowings (payments) under revolving credit agreements	235.0	124.5	(2.6)
Borrowings of long-term debt	0.0	200.0	0.0
Payments on long-term debt	(7.5)	(538.2)	(37.5)
Payments of debt issuance and debt extinguishment costs	(0.3)	(2.7)	(0.1)
Cash dividends paid	(33.6)	(28.6)	(23.0)
Purchase of common stock for treasury	(319.2)	(174.7)	(51.5)
Proceeds from the exercise of stock options	12.2	24.0	21.4
Contributions from noncontrolling interests	5.7	0.0	0.8
Net cash used in financing activities	(124.6)	(404.5)	(98.0)
Effect of foreign exchange rate changes	1.0	(8.7)	7.5
Increase (decrease) in cash and cash equivalents	37.5	(337.9)	111.2
Cash and cash equivalents at beginning of the year	143.1	481.0	369.8
Cash and cash equivalents at end of the year	180.6	143.1	481.0
OTHER CASH FLOW INFORMATION
Interest paid	32.4	29.0	31.5
Net income taxes paid	23.2	17.4	23.6
Noncash Investing and Financing Items [Abstract]
Additions to property, plant and equipment not yet paid	0.8	1.3	0.8
Business acquisition not yet paid	$ 5.5	$ 0.0	$ 0.0