Accounting Policies	9 Months Ended
Sep. 30, 2020
Accounting Policies [Abstract]
Accounting Policies	4. Accounting Policies There have been no changes in accounting policies from those stated in our 2019 Annual Report. We do not expect any newly effective accounting standards to have a material impact on our financial position, results of operations or cash flows when they become effective, other than as described below. In August 2020, the FASB issued ASU 2020-06 "Debt - Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging - Contracts in Entity's Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity's Own Equity." This ASU simplifies accounting for convertible instruments by removing major separation models required under current U.S. GAAP. Consequently, more convertible debt instruments will be reported as a single liability instrument and more convertible preferred stock as a single equity instrument with no separate accounting for embedded conversion features. The ASU removes certain settlement conditions that are required for equity contracts to qualify for the derivative scope exception, which will permit more equity contracts to qualify for the exception. The ASU also simplifies the diluted earnings per share (EPS) calculation in certain areas. The ASU is effective for fiscal years beginning after December 15, 2021, including interim periods within those fiscal years, with early adoption permitted for fiscal years beginning after December 15, 2020. We are evaluating the impact of ASU 2020-06 on our consolidated financial statements.

4. Accounting Policies

There have been no changes in accounting policies from those stated in our 2019 Annual Report. We do not expect any newly effective accounting standards to have a material impact on our financial position, results of operations or cash flows when they become effective, other than as described below.

In August 2020, the FASB issued ASU 2020-06 "Debt - Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging - Contracts in Entity's Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity's Own Equity." This ASU simplifies accounting for convertible instruments by removing major separation models required under current U.S. GAAP. Consequently, more convertible debt instruments will be reported as a single liability instrument and more convertible preferred stock as a single equity instrument with no separate accounting for embedded conversion features. The ASU removes certain settlement conditions that are required for equity contracts to qualify for the derivative scope exception, which will permit more equity contracts to qualify for the exception. The ASU also simplifies the diluted earnings per share (EPS) calculation in certain areas. The ASU is effective for fiscal years beginning after December 15, 2021, including interim periods within those fiscal years, with early adoption permitted for fiscal years beginning after December 15, 2020. We are evaluating the impact of ASU 2020-06 on our consolidated financial statements.