Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Cash and Cash Equivalents, at Carrying Value	$ 146,000,000	$ 188,000,000	$ 196,000,000
Net income (loss)	1,671,000,000	104,000,000	347,000,000
Adjustments to reconcile net income (loss) to cash provided by operating activities
Depreciation and amortization	894,000,000	844,000,000	815,000,000
Deferred and prepaid income taxes	(87,000,000)	245,000,000	(305,000,000)
Stock-based compensation expense	140,000,000	127,000,000	116,000,000
Intangible asset impairment charges	35,000,000	4,000,000	11,000,000
Net loss (gain) on investments and notes receivable	(155,000,000)	92,000,000	21,000,000
Contingent consideration expense (benefit)	(21,000,000)	(80,000,000)	29,000,000
Payment of contingent consideration in excess of amount recognized at acquisition	(9,000,000)	(14,000,000)	(57,000,000)
Inventory step-up amortization	6,000,000	10,000,000	22,000,000
Other, net	(3,000,000)	27,000,000	(23,000,000)
Increase (decrease) in operating assets and liabilities, net of acquisitions:
Trade accounts receivable	(110,000,000)	(30,000,000)	(216,000,000)
Inventories	(83,000,000)	(107,000,000)	40,000,000
Other assets	(172,000,000)	(20,000,000)	(43,000,000)
Accounts payable and accrued expenses	(631,000,000)	195,000,000	553,000,000
Other liabilities	(1,164,000,000)	28,000,000	(128,000,000)
Cash provided by (used for) operating activities	310,000,000	1,426,000,000	1,182,000,000
Investing Activities
Purchases of property, plant and equipment	(316,000,000)	(319,000,000)	(376,000,000)
Proceeds on disposals of property, plant and equipment	14,000,000	0	29,000,000
Payments for acquisitions of businesses, net of cash acquired	(1,448,000,000)	(560,000,000)	(408,000,000)
Payments for investments and acquisitions of certain technologies	(172,000,000)	(131,000,000)	(132,000,000)
Cash provided by (used for) investing activities	(1,921,000,000)	(1,010,000,000)	(887,000,000)
Financing Activities
Payments of contingent consideration previously established in purchase accounting	(19,000,000)	(33,000,000)	(65,000,000)
Proceeds from short-term borrowings, net of debt issuance costs	999,000,000
Net increase (decrease) in commercial paper	21,000,000	1,183,000,000	0
Proceeds from borrowings on credit facilities	569,000,000	2,156,000,000	630,000,000
Payments on borrowings from credit facilities	(569,000,000)	(2,216,000,000)	(570,000,000)
Payments on long-term borrowings	(602,000,000)	(1,000,000,000)	(250,000,000)
Proceeds from long-term borrowings, net of debt issuance and extinguishment costs	987,000,000	0	0
Cash used to net share settle employee equity awards	(56,000,000)	(65,000,000)	(62,000,000)
Proceeds from issuances of shares of common stock	101,000,000	85,000,000	111,000,000
Cash provided by (used for) financing activities	1,432,000,000	110,000,000	(206,000,000)
Effect of foreign exchange rates on cash	(8,000,000)	4,000,000	(2,000,000)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect	(188,000,000)	530,000,000	87,000,000
Cash, cash equivalents, restricted cash and restricted cash equivalents at beginning of period	1,017,000,000	487,000,000	400,000,000
Cash, cash equivalents, restricted cash and restricted cash equivalents at end of period	829,000,000	1,017,000,000	487,000,000
Supplemental Information
Cash (received) paid for income taxes, net	1,037,000,000
Cash (received) paid for income taxes, net		(42,000,000)	(94,000,000)
Cash paid for interest	262,000,000	235,000,000	233,000,000
Fair value of contingent consideration recorded in purchase accounting	248,000,000	94,000,000	50,000,000
Restricted Cash and Cash Equivalents, Current	655,000,000	803,000,000	269,000,000
Restricted Cash Equivalents, Noncurrent	$ 27,000,000	$ 26,000,000	$ 22,000,000