Summary of Quarterly Data (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Net sales	$ 2,468	$ 2,151	$ 2,212	$ 2,190	$ 2,337	$ 2,052	$ 2,106	$ 2,161	$ 9,021	$ 8,657	$ 8,307
Gross profit	1,616	1,469	1,482	1,477	1,593	1,397	1,434	1,452	6,044	5,876	5,496
Earnings before income taxes	431	137	269	375	358	444	435	468	1,212	1,705	1,686
Net earnings	$ 386	$ 103	$ 213	$ 304	$ 270	$ 353	$ 325	$ 350	$ 1,006	$ 1,298	$ 1,345
Earnings Per Share, Basic	$ 1.02	$ 0.27	$ 0.56	$ 0.80	$ 0.71	$ 0.93	$ 0.85	$ 0.92	$ 2.66	$ 3.41	$ 3.48
Earnings Per Share, Diluted	$ 1.01	$ 0.27	$ 0.56	$ 0.79	$ 0.71	$ 0.92	$ 0.85	$ 0.91	$ 2.63	$ 3.39	$ 3.45
Market Price Of Common Stock, High	$ 75.55	$ 71.94	$ 70.00	$ 66.92	$ 56.75	$ 56.79	$ 57.14	$ 55.90
Market Price Of Common Stock, Low	$ 66.93	$ 63.71	$ 63.35	$ 55.24	$ 51.60	$ 50.05	$ 49.43	$ 50.41
Dividends declared per share of common stock	$ 0.305	$ 0.265	$ 0.265	$ 0.265	$ 0.265	$ 0.2125	$ 0.2125	$ 0.2125	$ 1.10	$ 0.9025	$ 0.7525