Summary of Quarterly Data (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Quarterly Financial Data [Abstract]
Net sales	$ 3,157	$ 2,833	$ 2,840	$ 2,495	$ 2,715	$ 2,420	$ 2,432	$ 2,379	$ 11,325	$ 9,946	$ 9,675
Gross profit	2,086	1,873	1,842	1,694	1,820	1,624	1,605	1,553	7,495	6,602	6,356
Earnings before income taxes	588	419	433	481	612	345	401	377	1,921	1,735	1,160
Net earnings	$ 510	$ 355	$ 380	$ 402	$ 522	$ 301	$ 392	$ 224	$ 1,647	$ 1,439	$ 515
Basic net earnings per share of common stock (in dollars per share)	$ 1.36	$ 0.95	$ 1.02	$ 1.08	$ 1.39	$ 0.80	$ 1.04	$ 0.59	$ 4.40	$ 3.82	$ 1.36
Diluted net earnings per share of common stock (in dollars per share)	1.34	0.94	1.00	1.07	1.38	0.79	1.03	0.58	4.35	3.78	1.34
Market Price Of Common Stock, High	121.84	123.55	119.83	107.95	100.51	105.34	97.94	96.18
Market Price Of Common Stock, Low	106.48	109.75	106.26	86.68	90.30	91.73	90.19	89.81
Dividends declared per share of common stock	$ 0.425	$ 0.38	$ 0.380	$ 0.380	$ 0.380	$ 0.345	$ 0.345	$ 0.345	$ 1.565	$ 1.415	$ 1.26