Guarantor Financial Information (Narrative) (Details) (USD $)	Dec. 31, 2001	Sep. 30, 2011 Bermuda Reorganization Note [Member]	Dec. 31, 2001 Bermuda Reorganization Note [Member]	Sep. 30, 2011 Ireland Reorganization Note [Member]	Sep. 30, 2009 Ireland Reorganization Note [Member]	Mar. 31, 2005 Senior Notes Due in 2015 [Member]	Dec. 31, 2001 Senior Notes Due in 2015 [Member]
Stated interest rate for debt instruments	11.00%						4.75%
Debt Instrument, Face Amount			$ 3,600,000,000		$ 15,000,000,000	$ 300,000,000
Notes payable, amount outstanding		1,000,000,000
Settlement of net intercompany payables					4,100,000,000
Amount outstanding				$ 10,800,000,000