v2.4.0.8

Equity Shareholders's Equity (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2013 | Jun. 30, 2012 | Jun. 30, 2013 | Jun. 30, 2012
Changes in Shareholders' equity |  |  |  |
Balance at December 31, 2012 |  |  | $ 15,155 |
Net income | 497 | 382 | 877 | 693
Net current-period other comprehensive (loss) income | (72) | (242) | (306) | (16)
Cash dividends paid |  |  | (401) |
Issuance of shares under equity-based compensation plans-net |  |  | 106 |
Balance at June 30, 2013 | 15,431 |  | 15,431 |
Parent [Member] |  |  |  |
Changes in Shareholders' equity |  |  |  |
Balance at December 31, 2012 |  |  | 15,113 |
Net income |  |  | 872 |
Net current-period other comprehensive (loss) income |  |  | (306) |
Cash dividends paid |  |  | (397) |
Issuance of shares under equity-based compensation plans-net |  |  | 106 |
Balance at June 30, 2013 | 15,388 |  | 15,388 |
Noncontrolling Interest [Member] |  |  |  |
Changes in Shareholders' equity |  |  |  |
Balance at December 31, 2012 |  |  | 42 |
Net income |  |  | 5 |
Net current-period other comprehensive (loss) income |  |  | 0 |
Cash dividends paid |  |  | (4) |
Issuance of shares under equity-based compensation plans-net |  |  | 0 |
Balance at June 30, 2013 | $ 43 |  | $ 43 |

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- Definition Amount after tax of other comprehensive income (loss) attributable to parent entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4569643-111683 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4569616-111683 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=18733093&loc=SL4573702-111684 + Details
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- Definition Value of stock (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP), net of stock value of such awards forfeited. Stock issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30, 31 -Article 5 + Details
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