Consolidated Statements of Earnings (Parenthetical) - $ / shares		3 Months Ended								12 Months Ended
	Jan. 04, 2013	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Consolidated Statements of Earnings
Dividends declared (in dollars per share)	$ 0.40	$ 0.57	$ 0.51	$ 0.51	$ 0.51	$ 0.49	$ 0.42	$ 0.42	$ 0.42	$ 2.10	$ 1.75	$ 2.00	[1]

[1] On January 4, 2013, a cash dividend of $0.40 per share of common stock was declared from pre-separation earnings and was recorded as a reduction of additional paid-in capital.