Summary Of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2011

Summary Of Significant Accounting Policies [Abstract]

Schedule Of Life Settlement Contracts, Fair Value Method

	Number of Life Settlement Contracts	Fair Value of Life Settlement Contracts	Face Amount of Life Insurance Policies
(Dollar amounts in millions)
Estimated maturity during:
2012	70	$        16	$        46
2013	70	14	42
2014	60	12	39
2015	60	10	37
2016	50	9	33
Thereafter	531	56	338
Total	841	$      117	$      535

Principal Service Lives

	Years
Pipeline equipment		30 to 50
Offshore drilling equipment		15 to 30
Other		3 to 40