Quarterly Results (Unaudited) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Quarterly Results (Unaudited)
Net Sales	$ 5,356	$ 5,079	$ 5,057	$ 4,755	$ 5,072	$ 4,805	$ 4,933	$ 4,847	$ 20,247	$ 19,657	$ 19,050
Gross Profit	2,856	2,628	2,636	2,354	2,551	2,417	2,429	2,479
Earnings from Continuing Operations	634	438	425	224	483	644	397	464	1,721	1,988	237
Basic Earnings per Common Share	$ 0.42	$ 0.29	$ 0.28	$ 0.15	$ 0.31	$ 0.41	$ 0.25	$ 0.29	$ 1.13	$ 1.27	$ 0.15
Diluted Earnings per Common Share	$ 0.41	$ 0.29	$ 0.28	$ 0.14	$ 0.31	$ 0.41	$ 0.25	$ 0.29	$ 1.12	$ 1.26	$ 0.15
Net Earnings	$ 905	$ 538	$ 466	$ 375	$ 589	$ 966	$ 476	$ 545	$ 2,284	$ 2,576	$ 5,963
Basic Earnings Per Common Share (in dollars per share)	$ 0.59	$ 0.36	$ 0.30	$ 0.24	$ 0.38	$ 0.62	$ 0.30	$ 0.35	$ 1.50	$ 1.64	$ 3.76
Diluted Earnings Per Common Share (in dollars per share)	$ 0.59	$ 0.36	$ 0.30	$ 0.24	$ 0.37	$ 0.61	$ 0.30	$ 0.34	$ 1.49	$ 1.62	$ 3.72
Minimum
Quarterly Results
Market Price Per Share	$ 39.28	$ 40.92	$ 36.65	$ 35.65	$ 32.75	$ 32.70	$ 34.69	$ 31.64	$ 39.28	$ 32.75
Maximum
Quarterly Results
Market Price Per Share	$ 46.50	$ 44.20	$ 41.30	$ 40.49	$ 38.81	$ 37.16	$ 38.77	$ 35.34	$ 46.50	$ 38.81