Benefit Plans (Schedule of amounts expected to be amortized from AOCI into net periodic pension cost during next fiscal year) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2013
Qualified Pension Plan [Member}
Net actuarial gain (loss)	$ (1)
Net amount to be amortized in next fiscal year	(1)
Nonqualified Pension Plan [Member]
Net actuarial gain (loss)	(11)
Net amount to be amortized in next fiscal year	$ (11)

The amounts in accumulated other comprehensive income related to gains and losses that are not recognized immediately and are expected to be recognized as components of net periodic benefit cost over the next fiscal year that follows the most recent annual statement of financial position presented.

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The aggregate amount in accumulated other comprehensive income expected to be recognized as a component of net periodic benefit cost over the fiscal year that follows the most recent annual statement of financial position presented, including the net gain (loss), net prior service cost or credit, and net transition asset or obligation.

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