INCOME TAXES - OPERATING LOSS CARRYFORWARDS (DETAILS) (USD $) In Millions, unless otherwise specified	12 Months Ended			3 Months Ended
	Dec. 31, 2008	Mar. 31, 2012	Dec. 31, 2011	Mar. 31, 2012 Carryforward Expiration 2013 [Member]	Mar. 31, 2012 Carryforward Expiration 2014 [Member]	Mar. 31, 2012 Carryforward Expiration 2015 [Member]	Mar. 31, 2012 Carryforward Expiration 2018 [Member]	Mar. 31, 2012 Carryforward Expiration 2021 [Member]	Mar. 31, 2012 Carryforward Expiration 2022 [Member]	Mar. 31, 2012 Carryforward Expiration 2023 [Member]	Mar. 31, 2012 Carryforward Expiration 2024 [Member]	Mar. 31, 2012 Carryforward Expiration 2025 [Member]	Mar. 31, 2012 Carryforward Expiration 2027 [Member]	Mar. 31, 2012 Carryforward Expiration 2028 [Member]	Mar. 31, 2012 Carryforward Expiration 2029 [Member]	Mar. 31, 2012 Carryforward Expiration 2031 [Member]	Mar. 31, 2012 Internal Revenue Service (IRS) [Member]	Mar. 31, 2012 Non Life Insurance Companies [Member]	Mar. 31, 2012 Non Life Insurance Companies [Member] Carryforward Expiration 2013 [Member]	Mar. 31, 2012 Non Life Insurance Companies [Member] Carryforward Expiration 2014 [Member]	Mar. 31, 2012 Non Life Insurance Companies [Member] Carryforward Expiration 2015 [Member]	Mar. 31, 2012 Non Life Insurance Companies [Member] Carryforward Expiration 2018 [Member]	Mar. 31, 2012 Non Life Insurance Companies [Member] Carryforward Expiration 2021 [Member]	Mar. 31, 2012 Non Life Insurance Companies [Member] Carryforward Expiration 2022 [Member]	Mar. 31, 2012 Non Life Insurance Companies [Member] Carryforward Expiration 2023 [Member]		Mar. 31, 2012 Non Life Insurance Companies [Member] Carryforward Expiration 2024 [Member]	Mar. 31, 2012 Non Life Insurance Companies [Member] Carryforward Expiration 2025 [Member]	Mar. 31, 2012 Non Life Insurance Companies [Member] Carryforward Expiration 2027 [Member]	Mar. 31, 2012 Non Life Insurance Companies [Member] Carryforward Expiration 2028 [Member]	Mar. 31, 2012 Non Life Insurance Companies [Member] Carryforward Expiration 2029 [Member]	Mar. 31, 2012 Non Life Insurance Companies [Member] Carryforward Expiration 2031 [Member]	Mar. 31, 2012 Life Insurance Companies [Member]	Mar. 31, 2012 Life Insurance Companies [Member] Carryforward Expiration 2013 [Member]	Mar. 31, 2012 Life Insurance Companies [Member] Carryforward Expiration 2014 [Member]	Mar. 31, 2012 Life Insurance Companies [Member] Carryforward Expiration 2015 [Member]	Mar. 31, 2012 Life Insurance Companies [Member] Carryforward Expiration 2018 [Member]		Mar. 31, 2012 Life Insurance Companies [Member] Carryforward Expiration 2021 [Member]	Mar. 31, 2012 Life Insurance Companies [Member] Carryforward Expiration 2022 [Member]	Mar. 31, 2012 Life Insurance Companies [Member] Carryforward Expiration 2023 [Member]		Mar. 31, 2012 Life Insurance Companies [Member] Carryforward Expiration 2024 [Member]	Mar. 31, 2012 Life Insurance Companies [Member] Carryforward Expiration 2025 [Member]	Mar. 31, 2012 Life Insurance Companies [Member] Carryforward Expiration 2027 [Member]	Mar. 31, 2012 Life Insurance Companies [Member] Carryforward Expiration 2028 [Member]	Mar. 31, 2012 Life Insurance Companies [Member] Carryforward Expiration 2029 [Member]	Mar. 31, 2012 Life Insurance Companies [Member] Carryforward Expiration 2031 [Member]
Operating Loss Carryforwards [Line Items]
Other Tax Carryforward, Expiration Dates				2013	2014	2015
Operating loss carryforwards, expiration dates							2018	2021	2022	2023	2024	2025	2027	2028	2029	2031
Operating loss carryforwards																	$ 4,000.0	$ 2,467.3	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 1,975.2	[1]	$ 3.2	$ 118.8	$ 216.8	$ 0.5	$ 148.8	$ 4.0	$ 1,557.5	$ 0	$ 0	$ 0	$ 1,323.8	[1]	$ 29.6	$ 204.1	$ 0	[2]	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0
Other Tax Carryforward, Gross Amount		945.9		908.3	28.7	8.9	0	0	0	0	0	0	0	0	0	0
Total loss carryforwards		4,970.7		908.3	28.7	8.9	1,323.8	29.6	204.1	1,975.2	3.2	118.8	216.8	0.5	148.8	4.0
Net operating loss carryforward to be reclassified as non life net operating loss carryforwards		631
Loss on Investment in Senior Health	742
Net state operating loss carryforwards		$ 16.6	$ 16.8

[1] The allocation of the NOLs summarized above assumes the IRS does not take an adverse position in the future regarding the tax position we plan to take in our tax returns with respect to the allocation of CODI. If the IRS disagrees with the tax position we plan to take with respect to the allocation of CODI, and their position prevails, approximately $631 million of the NOLs expiring in 2018 would be characterized as non-life NOLs.

[2] Capital loss carryforwards expiring in 2013 include a $742 million loss on our investment in Senior Health which was worthless when it was transferred to the Independent Trust in 2008. Due to uncertainties in the Code, we have reflected this loss as an ordinary loss in our tax return. If classifying this loss as ordinary is ultimately determined to be correct, capital loss carryforwards expiring in 2013 would decrease and life NOLs expiring in 2023 would increase by $742 million.