|
Income From Continuing Operations Per Common Share (Details) (USD $)
In Millions, except Per Share data, unless otherwise specified
|
3 Months Ended |
9 Months Ended |
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2014
|
Dec. 31, 2013
|
| Basic income from continuing operations per common share: |
|
|
|
|
| Income from continuing operations |
$ 218 |
$ 225 |
$ 665 |
$ 786 |
| Less: Income from continuing operations allocable to participating securities |
(2) |
(2) |
(7) |
(8) |
| Income from continuing operations allocable to common shares |
216 |
223 |
658 |
778 |
| Weighted average common shares outstanding |
440 |
446 |
440 |
448 |
| Basic income from continuing operations per common share (in dollars per share) |
$ 0.49 |
$ 0.50 |
$ 1.50 |
$ 1.74 |
| Diluted income from continuing operations per common share: |
|
|
|
|
| Income from continuing operations |
218 |
225 |
665 |
786 |
| Less: Income from continuing operations allocable to participating securities |
(2) |
(2) |
(7) |
(8) |
| Income from continuing operations allocable to common shares |
$ 216 |
$ 223 |
$ 658 |
$ 778 |
| Weighted average shares outstanding and common share equivalents: |
|
|
|
|
| Weighted average common shares outstanding |
440 |
446 |
440 |
448 |
| Weighted average effect of share-based payment awards |
1 |
2 |
1 |
1 |
| Denominator in calculation of diluted income per share |
441 |
448 |
441 |
449 |
| Diluted income from continuing operations per common share (in dollars per share) |
$ 0.49 |
$ 0.50 |
$ 1.49 |
$ 1.73 |
| Income from continuing operations per common share, Other disclosures [Abstract] |
|
|
|
|
| Number of anti-dilutive restricted stock awards and options excluded from the calculation |
1 |
1 |
1 |
2 |
| Weighted average restricted stock awards considered participating securities |
5 |
5 |
4 |
5 |