Commitments and Contingencies (Details 3) (Respirator Mask/Asbestos Litigation, USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011 Claimant Claim
Respirator Mask/Asbestos Litiigation
Number of lawsuits pending	1,053
Number of lawsuits pending, specific claims asserted percentage	39.00%
Number of defendants included in typical complaint, low end of range	12
Number of defendants included in typical complaint, high end of range	100
Number of lawsuits pending, specific claims asserted	410
Payments received in connection with respirator mask/asbestos receivable	$ 9
Less than $100,000 specific damages
Respirator Mask/Asbestos Litiigation
Number of lawsuits pending, specific claims asserted	250
Less than $100,000 specific damages | $15 thousand punitive damages
Respirator Mask/Asbestos Litiigation
Number of lawsuits pending, specific claims asserted	3
Less than $100,000 specific damages | $10 million punitive damages
Respirator Mask/Asbestos Litiigation
Number of lawsuits pending, specific claims asserted	15
Less than $100,000 specific damages | $20 million punitive damages
Respirator Mask/Asbestos Litiigation
Number of lawsuits pending, specific claims asserted	3
More than $100,000 and less than $3 million specific damages
Respirator Mask/Asbestos Litiigation
Number of lawsuits pending, specific claims asserted	102
More than $100,000 and less than $3 million specific damages | $250 thousand punitive damages
Respirator Mask/Asbestos Litiigation
Number of lawsuits pending, specific claims asserted	46
More than $100,000 and less than $3 million specific damages | $2 million punitive damages
Respirator Mask/Asbestos Litiigation
Number of lawsuits pending, specific claims asserted	49
More than $3 million and less than $7.5 million specific damages
Respirator Mask/Asbestos Litiigation
Number of lawsuits pending, specific claims asserted	7
More than $3 million and less than $7.5 million specific damages | $5 million punitive damages
Respirator Mask/Asbestos Litiigation
Number of lawsuits pending, specific claims asserted	7
$10 million specific damages
Respirator Mask/Asbestos Litiigation
Number of lawsuits pending, specific claims asserted	3
$10 million specific damages | $10 million punitive damages
Respirator Mask/Asbestos Litiigation
Number of lawsuits pending, specific claims asserted	2
$50 million specific damages
Respirator Mask/Asbestos Litiigation
Number of lawsuits pending, specific claims asserted	12
$50 million specific damages | $50 million punitive damages
Respirator Mask/Asbestos Litiigation
Number of lawsuits pending, specific claims asserted	12
$100 million specific damages
Respirator Mask/Asbestos Litiigation
Number of lawsuits pending, specific claims asserted	36
$100 million specific damages | $100 million punitive damages
Respirator Mask/Asbestos Litiigation
Number of lawsuits pending, specific claims asserted	35
$100 million specific damages | $300 million punitive damages
Respirator Mask/Asbestos Litiigation
Number of lawsuits pending, specific claims asserted	1