Summary of Quarterly Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2016

Quarterly Financial Data [Abstract]

Summary of Quarterly Data

2016 Quarter	Mar 31		Jun 30		Sep 30		Dec 31
Net sales	$	2,495	$	2,840	$	2,833	$	3,157
Gross profit	1,694		1,842		1,873		2,086
Earnings before income taxes	481		433		419		588
Net earnings	402		380		355		510
Net earnings per share of common stock:
Basic	$	1.08	$	1.02	$	0.95	$	1.36
Diluted	$	1.07	$	1.00	$	0.94	$	1.34
Market price of common stock:
High	$	107.95	$	119.83	$	123.55	$	121.84
Low	$	86.68	$	106.26	$	109.75	$	106.48
Dividends declared per share of common stock	$	0.38	$	0.38	$	0.38	$	0.425
2015 Quarter
Net sales	$	2,379	$	2,432	$	2,420	$	2,715
Gross profit	1,553		1,605		1,624		1,820
Earnings before income taxes	377		401		345		612
Net earnings	224		392		301		522
Net earnings per share of common stock:
Basic	$	0.59	$	1.04	$	0.80	$	1.39
Diluted	$	0.58	$	1.03	$	0.79	$	1.38
Market price of common stock:
High	$	96.18	$	97.94	$	105.34	$	100.51
Low	$	89.81	$	90.19	$	91.73	$	90.30
Dividends declared per share of common stock	$	0.345	$	0.345	$	0.345	$	0.380