Fair Values Of Assets And Liabilities Fair Value Level 3 Rollforward (Tables)

6 Months Ended

Jun. 30, 2013

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

The tables below present a reconciliation for interest rate swap agreements measured at fair value on a recurring basis using significant unobservable inputs (Level 3) (in millions):



	Three Months Ended						Six Months Ended
	June 30, 2013
	Assets			Liabilities			Assets			Liabilities
Balance at beginning of period
Total realized and unrealized gains
Included in earnings	$	2		$	(4	)	$	2		$	(4	)
Purchases	7			(18		)	7			(18		)
Settlements	(2		)	2			(2		)	2
Balance at end of period	$	7		$	(20	)	$	7		$	(20	)



	Three Months Ended						Six Months Ended
	June 30, 2012
	Assets			Liabilities			Assets			Liabilities
Balance at beginning of period	$	2		$	(2	)	$	2		$	(6	)
Settlements	(2		)	2			(2		)	6
Balance at end of period	$			$			$			$

Fair Value, Assets Measured on Recurring Basis [Table Text Block]

The tables below present a reconciliation for interest rate swap agreements measured at fair value on a recurring basis using significant unobservable inputs (Level 3) (in millions):



	Three Months Ended						Six Months Ended
	June 30, 2013
	Assets			Liabilities			Assets			Liabilities
Balance at beginning of period
Total realized and unrealized gains
Included in earnings	$	2		$	(4	)	$	2		$	(4	)
Purchases	7			(18		)	7			(18		)
Settlements	(2		)	2			(2		)	2
Balance at end of period	$	7		$	(20	)	$	7		$	(20	)



	Three Months Ended						Six Months Ended
	June 30, 2012
	Assets			Liabilities			Assets			Liabilities
Balance at beginning of period	$	2		$	(2	)	$	2		$	(6	)
Settlements	(2		)	2			(2		)	6
Balance at end of period	$			$			$			$

- Definition

Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

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- Definition

Tabular disclosure of the fair value measurement of assets using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets) and gains or losses recognized in other comprehensive income (loss), and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs), by class of asset.

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