Retirement-Related Benefits (Narrative) (Details 4) (USD $) In Millions, unless otherwise specified	9 Months Ended	3 Months Ended	9 Months Ended			12 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2014	Mar. 31, 2014 Multi-employer Plans - Non U.S. Plans Spain Pending Litigation SG&A expense	Sep. 30, 2014 Non-U.S. Defined Benefit and Multi-employer Plan	Sep. 30, 2014 U.S. Defined Benefit Pension Plans	Sep. 30, 2014 U.S. Defined Benefit Pension Plans Equity securities	Dec. 31, 2013 U.S. Defined Benefit Pension Plans Equity securities	Sep. 30, 2014 U.S. Defined Benefit Pension Plans Debt securities	Dec. 31, 2013 U.S. Defined Benefit Pension Plans Debt securities
Proceeds from Medicare Prescription Drug Improvement and Modernization Act of 2003	$ 23.0
Expected current year contributions to non-U.S. defined benefit plans			600
Year-to-date contributions to non-U.S. defined benefit plans			387
Target allocation (as a percent)					32.00%	42.00%	57.00%	47.00%
Expected long-term returns on plan assets (as a percent)				7.75%
Multi-employer plans/other costs		$ 55