Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2017

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

Antidilutive Securities Excluded From Computation Of Earnings Per Share

For the Current Quarter, the Prior Quarter, the Current Period and the Prior Period, 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)
Three Months Ended June 30, 2017
Participating securities	1
Three Months Ended June 30, 2016
Common stock equivalent of our preferred stock outstanding:
5.75% cumulative convertible preferred stock	58
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
Six Months Ended June 30, 2017
Common stock equivalent of our preferred stock outstanding:
5.75% cumulative convertible preferred stock	31
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 preferred stock outstanding prior to exchange:
5.75% cumulative convertible preferred stock exchanged	1
Six Months Ended June 30, 2016
Common stock equivalent of our preferred stock outstanding:
5.75% cumulative convertible preferred stock	58
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

Schedule of Earnings Per Share, Basic and Diluted

A reconciliation of basic EPS and diluted EPS is as follows:

	Income (Numerator)		Weighted Average Shares (Denominator)	Per Share Amount
	(in millions, except per share data)
Three Months Ended June 30, 2017
Basic EPS	$	470	908	$	0.52
Effect of Dilutive Securities:
5.75% cumulative convertible preferred stock	11		31
5.75% cumulative convertible preferred stock (series A)	7		18
5.00% cumulative convertible preferred stock (series 2005B)	2		5
4.50% cumulative convertible preferred stock	3		6
5.5% convertible senior notes due 2026	36		146
Diluted EPS	$	529	1,114	$	0.47
Six Months Ended June 30, 2017
Basic EPS	$	547	907	$	0.60
Effect of Dilutive Securities:
5.5% convertible senior notes due 2026	72		146
Diluted EPS	$	619	1,053	$	0.59