Accumulated Other Comprehensive Income (Loss) (AOCI) Reclassifications (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Cost of products	$ 2,072	$ 2,153	$ 2,152
Cost of services	2,832	2,706	2,231
Selling, general and administrative expenses	1,042	1,012	871
Research and development expenses	230	263	203
Interest Expense	173	181	103
Other Nonoperating Income (Expense)	57	35	9
Income from continuing operations	150	(185)	(456)
Total reclassifications, net of tax	55	(48)	98
Net income	182	(191)	(443)
Reclassification out of Accumulated Other Comprehensive Income
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Cost of products	(13)		(3)
Cost of services	(8)	(10)	(10)
Selling, general and administrative expenses	(6)	(6)	(7)
Research and development expenses	(4)	(4)	(3)
Interest Expense	5	4	7
Other Nonoperating Income (Expense)		4
Income from continuing operations	(26)	(20)	(16)
Total reclassifications, net of tax	8	8	8
Net income	(18)	(12)	(8)
Reclassification out of Accumulated Other Comprehensive Income | Actuarial losses recognized
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Cost of products	0		0
Cost of services	1		5
Selling, general and administrative expenses	1		2
Research and development expenses	0		1
Interest Expense	0		0
Income from continuing operations	2		8
Reclassification out of Accumulated Other Comprehensive Income | Amortization of prior service benefit
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Cost of products	(1)		(2)
Cost of services	(9)	(10)	(15)
Selling, general and administrative expenses	(7)	(6)	(9)
Research and development expenses	(4)	(4)	(4)
Interest Expense	0	0	0
Other Nonoperating Income (Expense)		0
Income from continuing operations	(21)	(20)	(30)
Reclassification out of Accumulated Other Comprehensive Income | Cash Flow Hedging [Member]
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Cost of products	(12)		(1)
Cost of services	0	0	0
Selling, general and administrative expenses	0	0	0
Research and development expenses	0	0	0
Interest Expense	5	4	7
Other Nonoperating Income (Expense)		0
Income from continuing operations	$ (7)	4	$ 6
Reclassification out of Accumulated Other Comprehensive Income | Available-for-sale Securities [Member]
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Cost of services		0
Selling, general and administrative expenses		0
Research and development expenses		0
Interest Expense		0
Other Nonoperating Income (Expense)		4
Income from continuing operations		$ (4)