Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2016

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis

Assets and Liabilities Measured at Fair Value

	September			December
	2016			2015
Cash and cash equivalents	$	2,953		$	3,379
Trading marketable securities	91			82
Level 1 - Assets	$	3,044		$	3,461
Available-for-sale marketable securities:
Corporate and asset-backed debt securities	$	26		$	214
Foreign government debt securities	—			96
United States agency debt securities	11			120
United States treasury debt securities	14			264
Certificates of deposit	18			8
Total available-for-sale marketable securities	$	69		$	702
Foreign currency exchange forward contracts	12			69
Interest rate swap asset	39			15
Level 2 - Assets	$	120		$	786
Total assets measured at fair value	$	3,164		$	4,247
Deferred compensation arrangements	$	91		$	82
Level 1 - Liabilities	$	91		$	82
Foreign currency exchange forward contracts	$	33		$	10
Interest rate swap liability	—			4
Level 2 - Liabilities	$	33		$	14
Contingent consideration:
Beginning balance	$	56		$	48
Additions	49			11
Losses included in earnings	(5		)	—
Settlements	(3		)	(3		)
Balance at the end of the period	$	97		$	56
Level 3 - Liabilities	$	97		$	56
Total liabilities measured at fair value	$	221		$	152

Investments Classified by Contractual Maturity Date

Fair Value of Available for Sale Securities by Maturity

	September		December
	2016		2015
Due in one year or less	$	42	$	588
Due after one year through three years	$	27	$	114

Schedule of Unrealized Loss on Investments [Table Text Block]

Securities in a Continuous Unrealized Loss Position

	Number of Investments	Fair Value
Corporate and asset-backed debt securities	6	$	3
United States agency debt securities	1	1
United States treasury debt securities	1	2
Certificates of deposit	13	7
Total	21	$	13