Income and Other Taxes - Deferred Tax Asset And Liability (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Deferred Tax Assets And Liabilities [Line Items]
Undistributed Earnings of Foreign Subsidiaries	$ 8,000,000,000
Research and development	647,000,000	793,000,000
Post-retirement medical benefits	310,000,000	359,000,000
Anticipated foreign repatriations	0	264,000,000
Net operating losses	597,000,000	630,000,000
Operating reserves and accruals	374,000,000	403,000,000
Tax credit carryforwards	694,000,000	177,000,000
Deferred compensation	268,000,000	312,000,000
Pension	431,000,000	696,000,000
Other	87,000,000	195,000,000
Subtotal	3,408,000,000	3,829,000,000
Valuation allowance	(614,000,000)	(654,000,000)
Total	2,794,000,000	3,175,000,000
Unearned income and installment sales	959,000,000	947,000,000
Intangibles and goodwill	1,253,000,000	1,252,000,000
Anticipated foreign repatriations	55,000,000	0
Other	53,000,000	48,000,000
Total	2,320,000,000	2,247,000,000
Total Deferred Taxes, Net	474,000,000	928,000,000
Deferred Tax Assets, Net, Current	209,000,000	273,000,000
Valuation Allowance, Deferred Tax Asset, Change in Amount	40,000,000	23,000,000
Deferred Tax Assets, Tax Credit Carryforwards	694,000,000
Net Operating Loss Carryforwards, Expire	1,100,000,000
Net Operating Loss Carryforwards, Indefinitely	2,400,000,000
Carryforward Indefinitely [Member]
Deferred Tax Assets And Liabilities [Line Items]
Deferred Tax Assets, Tax Credit Carryforwards	94,000,000
Carryforwards Expire [Member]
Deferred Tax Assets And Liabilities [Line Items]
Deferred Tax Assets, Tax Credit Carryforwards	$ 600,000,000