Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2016

Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract]

Antidilutive Securities Excluded From Computation Of Earnings Per Share

For the years ended December 31, 2016, 2015 and 2014, shares of common stock for the following dilutive securities were excluded from the calculation of diluted EPS as the effect was antidilutive.

	Shares
	(in millions)
Year Ended December 31, 2016
Common stock equivalent of our preferred stock outstanding:
5.75% cumulative convertible preferred stock	34
5.75% cumulative convertible preferred stock (series A)	18
5.00% cumulative convertible preferred stock (series 2005B)	5
4.50% cumulative convertible preferred stock	6
Participating securities	1
Common stock equivalent of our convertible senior notes outstanding:
5.5% convertible senior notes	146
Common stock equivalent of our preferred stock outstanding prior to exchange:
5.75% cumulative convertible preferred stock exchanged	19
5.75% cumulative convertible preferred stock (series A) exchanged	18
5.00% cumulative convertible preferred stock (series 2005B) exchanged	—
Year Ended December 31, 2015
Common stock equivalent of our preferred stock outstanding:
5.75% cumulative convertible preferred stock	59
5.75% cumulative convertible preferred stock (series A)	42
5.00% cumulative convertible preferred stock (series 2005B)	6
4.50% cumulative convertible preferred stock	6
Participating securities	1
Year Ended December 31, 2014
Participating securities	3

Schedule of Earnings Per Share, Basic and Diluted

A reconciliation of basic EPS and diluted EPS for the year ended December 31, 2014 is as follows: 

	Income (Numerator)		Weighted Average Shares (Denominator)	Per Share Amount
	(in millions, except per share data)
For the Year Ended December 31, 2014:
Basic EPS	$	1,273	659	$	1.93
Effect of Dilutive Securities:
Assumed conversion as of the beginning of the period     of preferred shares outstanding during the period:
Common shares assumed issued for 5.75% cumulative convertible preferred stock	86		59
Common shares assumed issued for 5.75% cumulative convertible preferred stock (series A)	63		42
Common shares assumed issued for 5.00% cumulative convertible preferred stock (series 2005B)	10		6
Common shares assumed issued for 4.50% cumulative convertible preferred stock	12		6
Diluted EPS	$	1,444	772	$	1.87