Acquisitions Schedule of Estimated Fair Values of the Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions		Dec. 31, 2015	Aug. 26, 2015	Jun. 30, 2015
Business Acquisition [Line Items]
Redeemable Noncontrolling Interests			$ (119)
Goodwill		$ 6,799		$ 5,070
naviHealth [Member]
Business Acquisition [Line Items]
Identifiable intangible asset		115
Cash and Equivalents		53
Trade Receivables		38
Inventories		0
Prepaid Expense and Other		14
Property and Equipment		5
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets		1
Accounts Payable		(2)
Other accrued liabilities		(95)
Deferred Income Tax Liabilities and Other Liabilities		(42)
Redeemable Noncontrolling Interests		(119)
Total identifiable net assets/(liabilities) acquired		(32)
Goodwill		323
Total net assets acquired		291
Harvard Drug Group [Member]
Business Acquisition [Line Items]
Identifiable intangible asset		600
Cash and Equivalents		46
Trade Receivables		67
Inventories		49
Prepaid Expense and Other		12
Property and Equipment		16
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets		1
Accounts Payable		(48)
Other accrued liabilities		(39)
Deferred Income Tax Liabilities and Other Liabilities		(104)
Redeemable Noncontrolling Interests		0
Total identifiable net assets/(liabilities) acquired		600
Goodwill		551
Total net assets acquired		1,151
Cordis [Member]
Business Acquisition [Line Items]
Identifiable intangible asset		815
Cash and Equivalents		0
Trade Receivables		0
Inventories		213
Prepaid Expense and Other		4
Property and Equipment		98
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets		10
Accounts Payable		(81)
Other accrued liabilities		(11)
Deferred Income Tax Liabilities and Other Liabilities		(7)
Redeemable Noncontrolling Interests		0
Total identifiable net assets/(liabilities) acquired		1,041
Goodwill		832
Total net assets acquired		1,873
Customer relationships | naviHealth [Member]
Business Acquisition [Line Items]
Identifiable intangible asset	[1]	38
Customer relationships | Harvard Drug Group [Member]
Business Acquisition [Line Items]
Identifiable intangible asset	[1]	470
Customer relationships | Cordis [Member]
Business Acquisition [Line Items]
Identifiable intangible asset	[1]	230
Trade Names | naviHealth [Member]
Business Acquisition [Line Items]
Identifiable intangible asset	[2]	16
Trade Names | Harvard Drug Group [Member]
Business Acquisition [Line Items]
Identifiable intangible asset	[2]	130
Trade Names | Cordis [Member]
Business Acquisition [Line Items]
Identifiable intangible asset	[2]	130
Developed technology and other | naviHealth [Member]
Business Acquisition [Line Items]
Identifiable intangible asset	[3]	61
Developed technology and other | Harvard Drug Group [Member]
Business Acquisition [Line Items]
Identifiable intangible asset	[3]	0
Developed technology and other | Cordis [Member]
Business Acquisition [Line Items]
Identifiable intangible asset	[3]	400
In Process Research and Development [Member] | naviHealth [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets	[4]	0
In Process Research and Development [Member] | Harvard Drug Group [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets	[4]	0
In Process Research and Development [Member] | Cordis [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets	[4]	$ 55

[1] (1)The weighted-average useful lives of customer relationships range from 4 to 13 years.

[2] (2)The weighted-average useful lives of trade names range from 10 to 17 years.

[3] (3)The weighted-average useful life of developed technology is 10 years.

[4] (4)Acquired in-process research and development ("IPR&D") intangible assets have an indefinite-life.