XML 135 R38.htm IDEA: XBRL DOCUMENT
v3.19.3

Equity Equity Repurchase Activity (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2019
Equity [Abstract] |
Class of Treasury Stock [Table Text Block] |
Equity Repurchase Activity and Remaining Repurchase Capacity
Three months ended | Common Shares Repurchased | Cost of Shares Repurchased | Average Price Paid per Share | Remaining Capacity Under Share Repurchase Authorization
(In millions, except for per share data) |  |  |  |
June 30, 2019 | 0.5 |  | $ | 27 |  | $ | 53.84 |  | $ | 973 |
September 30, 2019 | 1.1 |  | $ | 63 |  | $ | 58.50 |  | $ | 910 |
Total | 1.6 |  | $ | 90 |  |  |

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

X
- Definition Tabular disclosure of treasury stock, including, but not limited to, average cost per share, description of share repurchase program, shares repurchased, shares held for each class of treasury stock. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23309-112656 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23315-112656 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23285-112656 + Details
Name: | us-gaap_ScheduleOfTreasuryStockByClassTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration