Stock-Based Compensation, Dividend Restrictions, And Calculations Of Earnings Per Share Of Common Stock (Tables)

12 Months Ended

Dec. 31, 2011

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Restricted Stock And Restricted Stock Units

	Number of Shares			Total Number of Shares			Weighted Average Grant Date Fair Value
Balance at January 1, 2011
Time-based restricted stock		316,194					$	18.15
Performance-based restricted stock units		586,883						20.75
Total					903,077
Granted during 2011
Time-based restricted stock units		177,895						18.87
Performance-based restricted stock units		354,979						19.56
Total					532,874
Vested during 2011
Time-based restricted stock		(63,764	)					23.70
Time-based restricted stock units		(173	)					18.84
Performance-based restricted stock units		(144,451	)					25.36
Total					(208,388	)
Forfeited during 2011
Time-based restricted stock		(10,741	)					17.06
Time-based restricted stock units		(7,191	)					18.84
Performance-based restricted stock units		(32,272	)					21.78
Total					(50,204	)
Balance at December 31, 2011
Time-based restricted stock		241,689						16.74
Time-based restricted stock units		170,531						18.87
Performance-based restricted stock units		765,139						19.28
Total					1,177,359

Weighted Average Grant Date Fair Value

	2011		2010		2009
Weighted average grant-date fair value of each performance-based restricted stock unit granted during the year	$	19.56	$	20.11	$	17.51
Weighted average grant-date fair value of each award of time-based restricted stock granted during the year	$	—	$	16.55	$	17.18
Weighted average grant-date fair value of each time-based restricted stock unit granted during the year	$	18.87	$	—	$	—

Stock Options Activity

	Number of Options			Weighted Average Exercise Price			Weighted Average Remaining Contractual Term (Years)		Aggregate Intrinsic Value
Outstanding at January 1, 2011		280,266		$	22.30			0.70
Options granted		—			—			—
Options exercised		(81,918	)		19.03			—
Options forfeited or expired		(167,423	)		24.19			—
Outstanding at December 31, 2011		30,925			20.75			0.03	$	—
Exercisable at December 31, 2011		30,925			20.75	(a)		0.03	$	—

Dividends Received From Subsidiaries

Subsidiary	2011		2010		2009
	(millions of dollars)
Pepco	$	25	$	115	$	—
DPL		60		23		28
ACE		—		35		64
Total	$	85	$	173	$	92

Calculations of Earnings Per Share Of Common Stock

	For the Years Ended December 31 ,
	2011			2010			2009
	(millions of dollars, except per share data)
Income (Numerator):
Net income from continuing operations	$	260		$	139		$	223
Net (loss) income from discontinued operations		(3	)		(107	)		12
Net income	$	257		$	32		$	235
Shares (Denominator) (in millions):
Weighted average shares outstanding for basic computation:
Average shares outstanding		226			224			221
Adjustment to shares outstanding		—			—			—
Weighted Average Shares Outstanding for Computation of Basic Earnings Per Share of Common Stock		226			224			221
Net effect of potentially dilutive shares (a)		—			—			—
Weighted Average Shares Outstanding for Computation of Diluted Earnings Per Share of Common Stock		226			224			221
Basic and diluted earnings per share of common stock from continuing operations	$	1.15		$	0.62		$	1.01
Basic and diluted (loss) earnings per share of common stock from discontinued operations		(0.01	)		(0.48	)		0.05
Basic and diluted earnings per share	$	1.14		$	0.14		$	1.06

Common Stock Reserved And Unissued

Name of Plan	Number of Shares
DRP		3,448,048
Conectiv Incentive Compensation Plan (a)		1,093,701
Potomac Electric Power Company Long-Term Incentive Plan (a)		327,059
Pepco Holdings Long-Term Incentive Plan		7,791,543
Pepco Holdings Non-Management Directors Compensation Plan		462,429
Pepco Holdings Retirement Savings Plan		1,298,849
Total		14,421,629