Other Investments Other Investments - (Policies)	6 Months Ended
Jun. 30, 2019
Equity Method Investments and Joint Ventures [Abstract]
Equity and Cost Method Investments, Policy [Policy Text Block]	We have investments in entities for which we do not have the ability to exercise significant influence and fair values are not readily available. We record these investments at cost (less impairment, if any), adjusted for observable price changes in orderly transactions for the identical or a similar investment of the same issuer. We report the carrying value of these investments in Other assets in the non-current assets section of our consolidated balance sheet.

Disclosure of accounting policy for the equity method of accounting for investments in common stock or other interests including unconsolidated domestic subsidiaries, corporate joint ventures, noncontrolling interests in real estate ventures, limited partnerships, and limited liability companies. Additionally, this element describes the entity's application of the cost method to equity investments or other interests that are not consolidated or accounted for under the equity method of accounting. The disclosure provided may include how equity method or cost investments are assessed for impairment.

No definition available.

Name:	us-gaap_EquityAndCostMethodInvestmentsPolicy
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration