Fair Value (Tables)

12 Months Ended

Dec. 31, 2013

Assets and liabilities measured and recorded at fair value on a recurring basis [Table Text Block]

The following table presents assets measured and recorded at fair value on a recurring basis as of December 31, 2013 and 2012:



	December 31, 2013								December 31, 2012
	Level 1		Level 2		Level 3		Net Balance		Level 1		Level 2		Level 3		Net Balance
	(In millions)
Assets:
Cash equivalents (a)	$	2	$	114	$	—	$	116	$	—	$	116	$	—	$	116
Nuclear decommissioning trusts	779		412		—		1,191		694		343		—		1,037
Other investments (b)	91		44		—		135		64		44		—		108
Derivative assets — FTRs	—		—		3		3		—		—		1		1
Total	$	872	$	570	$	3	$	1,445	$	758	$	503	$	1	$	1,262

Assets:
Current	$	2	$	114	$	3	$	119	$	—	$	116	$	1	$	117
Noncurrent	870		456		—		1,326		758		387		—		1,145
Total Assets	$	872	$	570	$	3	$	1,445	$	758	$	503	$	1	$	1,262

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(a)

At December 31, 2013, available-for-sale securities of $116 million, included $100 million and $16 million of cash equivalents included in Restricted cash and Other investments, respectively, on the Consolidated Statements of Financial Position. At December 31, 2012, available-for-sale securities of $116 million, included $102 million and $14 million of cash equivalents included in Restricted cash and Other investments, respectively, on the Consolidated Statements of Financial Position.


(b)	Available-for-sale equity securities at December 31, 2013 and 2012 of $7 million and $5 million, respectively, are included in Other investments on the Consolidated Statements of Financial Position.

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

The following table presents the fair value reconciliation of Level 3 assets and liabilities measured at fair value on a recurring basis for the years ended December 31, 2013 and 2012:



	Year Ended December 31,
	2013			2012
	(In millions)
Net Assets as of the beginning of the period	$	1		1
Change in fair value recorded in regulatory assets/liabilities	5			15
Purchases, issuances and settlements:
Settlements	(3		)	(15		)
Net Assets as of December 31	$	3		$	1
The amount of total gains (losses) included in regulatory assets and liabilities attributed to the change in unrealized gains (losses) related to regulatory assets and liabilities held at December 31, 2013 and 2012	$	2		$	1

Fair Value of Financial Instruments [Table Text Block]

The following table presents the carrying amount and fair value of financial instruments as of December 31, 2013 and 2012:



	December 31, 2013								December 31, 2012
	Carrying		Fair Value						Carrying		Fair Value
	Amount		Level 1		Level 2		Level 3		Amount		Level 1		Level 2		Level 3
	(In millions)
Notes receivable, excluding capital leases	$	10	$	—	$	—	$	10	$	5	$	—	$	—	$	5
Notes receivable — affiliates	$	200	$	—	$	—	$	200	$	—	$	—	$	—	$	—
Short-term borrowings — affiliates	$	58	$	—	$	—	$	58	$	80	$	—	$	—	$	80
Short-term borrowings — other	$	—	$	—	$	—	$	—	$	130	$	—	$	130	$	—
Long-term debt	$	5,146	$	—	$	5,253	$	136	$	4,963	$	—	$	5,021	$	620

Fair Value of Nuclear Decommissioning Trust Fund Assets [Table Text Block]

The following table summarizes the fair value of the nuclear decommissioning trust fund assets:



	December 31,		December 31,
	2013		2012
	(In millions)
Fermi 2	$	1,172	$	1,021
Fermi 1	3		3
Low level radioactive waste	16		13
Total	$	1,191	$	1,037

Schedule of Realized Gain (Loss) [Table Text Block]

The following table sets forth the gains and losses and proceeds from the sale of securities by the nuclear decommissioning trust funds:



	Year Ended December 31,
	2013			2012			2011
	(In millions)
Realized gains	$	83		$	37		$	46
Realized losses	$	(41	)	$	(31	)	$	(38	)
Proceeds from sales of securities	$	1,118		$	759		$	833

Fair Value and Unrealized Gains for Nuclear Decommissioning Trust Fund [Table Text Block]

The following table sets forth the fair value and unrealized gains for the nuclear decommissioning trust funds:



	December 31, 2013				December 31, 2012
	Fair		Unrealized		Fair		Unrealized
	Value		Gains		Value		Gains
	(In millions)
Equity securities	$	730	$	201	$	631	$	122
Debt securities	442		12		399		27
Cash and cash equivalents	19		—		7		—
	$	1,191	$	213	$	1,037	$	149

- 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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