Accounts and Other Receivables (Components of Accounts and Other Receivables) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Current
Trade accounts receivable	$ 634.2	$ 553.5
Trade notes receivable	0.7	0.9
Total trade receivables	634.9	554.4
Other notes receivable	0.7	0.0
Taxes receivable, including income taxes	18.8	14.8
Other receivables	12.0	13.6
Subtotal other receivables	31.5	28.4
Total trade and other receivables	666.4	582.8
Allowance for doubtful accounts: Current
Trade accounts receivable	(14.9)	(19.2)
Trade notes receivable	0.0	0.0
Total trade receivables	(14.9)	(19.2)
Other notes receivable	0.0	0.0
Total allowance for doubtful accounts	(14.9)	(19.2)
Total receivables, net	651.5	563.6
Long-term
Trade accounts receivable	0.0	0.0
Trade notes receivable	0.2	0.3
Total trade receivables	0.2	0.3
Other notes receivable	22.5	22.8
Taxes receivable, including income taxes	0.0	0.0
Other receivables	0.0	0.0
Subtotal other receivables	22.5	22.8
Total trade and other receivables	22.7	23.1
Allowance for doubtful accounts: Long-term
Trade accounts receivable	0.0	0.0
Trade notes receivable	(0.1)	0.0
Total trade receivables	(0.1)	0.0
Other notes receivable	(22.0)	(22.8)
Total allowance for doubtful accounts	(22.1)	(22.8)
Total net receivables, Long-term	0.6	0.3
Bedding Products
Current
Trade accounts receivable	22.5	24.6
Allowance for doubtful accounts: Long-term
Allowance for credit losses	22.5	24.6
Notes Receivable | Bedding Products
Allowance for doubtful accounts: Long-term
Allowance for credit losses	22.0	22.8
Trade Accounts Receivable | Bedding Products
Allowance for doubtful accounts: Long-term
Allowance for credit losses	$ 0.5	$ 1.8