XML 56 R40.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Shareholders' Equity (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2016
Shareholders' Equity |
Changes in accumulated other comprehensive loss | The changes in accumulated other comprehensive loss, presented net of tax, for our defined benefit pension plans were as follows (in millions):
|  |  | Years ended December 31, |
|  |  | 2016 |  | 2015 |
Balance, beginning of period |  |  | $ | (277) |  | $ | (346) |
Other comprehensive income (loss) before reclassifications |  |  |  | (15) |  |  | 49 |
Reclassifications to net income |  |  |  | 9 |  |  | 20 |
Other comprehensive income (loss), net |  |  |  | (6) |  |  | 69 |
Balance, end of period |  |  | $ | (283) |  | $ | (277) |

X
- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=36458714&loc=SL7669686-108580 + Details
Name: | us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_StockholdersEquityNoteAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration