CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS AND RETAINED EARNINGS (Parenthetical)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS AND RETAINED EARNINGS
Stock dividends (as a percent)	3.00%	3.00%	3.00%	3.00%