STATEMENTS OF CONSOLIDATED SHAREHOLDERS' EQUITY (Parenthetical)	12 Months Ended
	Dec. 31, 2018
Accounting Standards Update [Extensible List]	us-gaap:AccountingStandardsUpdate201802Member
ASU 2016-02
Accounting Standards Update [Extensible List]	us-gaap:AccountingStandardsUpdate201602Member
ASU 2018-02
Accounting Standards Update [Extensible List]	us-gaap:AccountingStandardsUpdate201802Member