XML 85 R21.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Earnings Per Common Share (EPS) | 3 Months Ended
--- | ---
Mar. 31, 2013
Earnings Per Share [Abstract] |
Earnings Per Common Share (EPS) | 12. E arnings P er C ommon S hare (EPS) The computations of basic and diluted EPS for the three months ended March 31 were as follows:
(Millions, except per share amounts) |  | 2013 |  |  | 2012
Numerator: |  |  |  |  |  |
| Basic and diluted: |  |  |  |  |  |
|  | Net income |  | $ | 1,280 |  | $ | 1,256
|  | Earnings allocated to participating share awards(a) |  |  | (11) |  |  | (14)
|  | Net income attributable to common shareholders |  | $ | 1,269 |  | $ | 1,242
Denominator:(a) |  |  |  |  |  |
| Basic: Weighted-average common stock |  |  | 1,099 |  |  | 1,160
| Add: Weighted-average stock options(b) |  |  | 7 |  |  | 6
| Diluted |  |  | 1,106 |  |  | 1,166
Basic EPS |  | $ | 1.15 |  | $ | 1.07
Diluted EPS |  | $ | 1.15 |  | $ | 1.07
The Company's unvested restricted stock awards, which include the right to receive non-forfeitable divi dends or dividend equivalents, are considered participating securities. Calculations of EPS under the two-class method exclude from the numerator any dividends paid or owed on participating securities and any undistributed earnings considered to be attributa ble to participating securities. The related participating securities are similarly excluded from the denominator. For the three months ended March 31, 2013 and 2012, the dilutive effect of unexercised stock options excludes 1 million and 8 million options, respectively, from the computation of EPS because inclusion of the options would have been anti-dilutive. For the three months ended March 31, 2013 and 2012, the Company met specified performance measures related to the Subordinated Debentures of $750 million issued in 2006, which resulted in no impact to EPS. If the performance measures were not achieved in any given quarter, the Company would be required to issue common shares and apply the proceeds to make interest payments.

X
- Details
Name: | us-gaap_EarningsPerShareAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1252-109256 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 55 -Paragraph 52 -URI http://asc.fasb.org/extlink&oid=16381557&loc=d3e4984-109258 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1278-109256 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 40 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.21) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 + Details
Name: | us-gaap_EarningsPerShareTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration