Consolidated Statement Of Operations (Unaudited) (Parentheticals) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Interest expense (contractual interest)	$ 47	$ 36	$ 72	$ 67
Contractual Interest [Member]
Interest expense (contractual interest)	$ 64	$ 106	$ 52	$ 98