Derivative Financial Instruments (Details - Hedge accounting) (Designated As Hedging Instrument [Member], USD $) In Millions													3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended
	Sep. 30, 2011 Other Long Term Investments Designated As Accounting Hedges [Member] Interest Rate Swap [Member]	Dec. 31, 2010 Other Long Term Investments Designated As Accounting Hedges [Member] Interest Rate Swap [Member]	Sep. 30, 2011 Other Long Term Investments Designated As Accounting Hedges [Member] Interest And Foreign Currency Swaps [Member]	Dec. 31, 2010 Other Long Term Investments Designated As Accounting Hedges [Member] Interest And Foreign Currency Swaps [Member]	Sep. 30, 2011 Other Long Term Investments Designated As Accounting Hedges [Member] Foreign Currency Swap [Member]	Dec. 31, 2010 Other Long Term Investments Designated As Accounting Hedges [Member] Foreign Currency Swap [Member]	Sep. 30, 2011 Accounts Payable Accrued Expenses And Other Liabilities Designated As Accounting Hedge [Member] Interest Rate Swap [Member]	Dec. 31, 2010 Accounts Payable Accrued Expenses And Other Liabilities Designated As Accounting Hedge [Member] Interest Rate Swap [Member]	Sep. 30, 2011 Accounts Payable Accrued Expenses And Other Liabilities Designated As Accounting Hedge [Member] Interest And Foreign Currency Swaps [Member]	Dec. 31, 2010 Accounts Payable Accrued Expenses And Other Liabilities Designated As Accounting Hedge [Member] Interest And Foreign Currency Swaps [Member]	Sep. 30, 2011 Accounts Payable Accrued Expenses And Other Liabilities Designated As Accounting Hedge [Member] Foreign Currency Swap [Member]	Dec. 31, 2010 Accounts Payable Accrued Expenses And Other Liabilities Designated As Accounting Hedge [Member] Foreign Currency Swap [Member]	Sep. 30, 2011 Other Comprehensive Income [Member] Interest Rate Swap [Member]	Sep. 30, 2010 Other Comprehensive Income [Member] Interest Rate Swap [Member]	Sep. 30, 2011 Other Comprehensive Income [Member] Interest Rate Swap [Member]	Sep. 30, 2010 Other Comprehensive Income [Member] Interest Rate Swap [Member]	Sep. 30, 2011 Other Comprehensive Income [Member] Interest And Foreign Currency Swaps [Member]	Sep. 30, 2010 Other Comprehensive Income [Member] Interest And Foreign Currency Swaps [Member]	Sep. 30, 2011 Other Comprehensive Income [Member] Interest And Foreign Currency Swaps [Member]	Sep. 30, 2010 Other Comprehensive Income [Member] Interest And Foreign Currency Swaps [Member]	Sep. 30, 2011 Other Comprehensive Income [Member] Foreign Currency Swap [Member]	Sep. 30, 2010 Other Comprehensive Income [Member] Foreign Currency Swap [Member]	Sep. 30, 2011 Other Comprehensive Income [Member] Foreign Currency Swap [Member]	Sep. 30, 2010 Other Comprehensive Income [Member] Foreign Currency Swap [Member]	Sep. 30, 2011 Notional Hedged [Member] Interest Rate Swap [Member]	Dec. 31, 2010 Notional Hedged [Member] Interest Rate Swap [Member]	Sep. 30, 2011 Notional Hedged [Member] Interest And Foreign Currency Swaps [Member]	Dec. 31, 2010 Notional Hedged [Member] Interest And Foreign Currency Swaps [Member]	Sep. 30, 2011 Notional Hedged [Member] Foreign Currency Swap [Member]	Dec. 31, 2010 Notional Hedged [Member] Foreign Currency Swap [Member]
Designated As Accounting Hedges Interest Rate Foreign Currency And Combinations [Line Items]
Derivative Fair Value	$ 8	$ 10	$ 0	$ 0	$ 2	$ 6	$ 0	$ 0	$ 8	$ 12	$ 16	$ 20
Derivative Gain Loss On Derivative Net													0	1	(2)	4	9	(9)	4	(1)	10	(11)	0	7
Notional Amount Of Derivatives																									$ 136	$ 153	$ 64	$ 64	$ 134	$ 159