RESTATEMENT - Cash Flows (Details) - USD ($) $ in Millions	3 Months Ended								6 Months Ended		9 Months Ended		12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Jun. 30, 2015	Jun. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net (loss) income													$ (287.8)	$ 879.4	$ (863.6)
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation and amortization, including impairments of finite-lived intangible assets													2,627.5	1,737.6	2,015.8
Amortization and write-off of debt discounts and debt issuance costs													145.3	70.0	89.5
In-process research and development impairments													144.5	21.0	151.9
Acquisition accounting adjustment on inventory sold													133.7	27.3	372.4
Acquisition-related contingent consideration													(23.0)	(14.1)	(29.2)
Allowances for losses on accounts receivable and inventories													115.3	81.3	68.3
Deferred income taxes													(7.0)	75.6	(515.9)
Loss (gain) on disposal of assets and businesses													5.4	(253.5)	10.2
Additions (reduction) to accrued legal settlements													37.3	(44.7)	220.5
Payments of accrued legal settlements													(32.9)	(3.2)	(180.8)
Share-based compensation													140.1	78.2	45.5
Tax benefits from share-based compensation													(56.8)	(17.1)	(24.2)
Foreign exchange loss													95.2	135.1	9.8
Loss on extinguishment of debt								$ 94.0					20.0	129.6	65.0
Payment of accreted interest on contingent consideration													(23.0)	(10.7)	(11.1)
Other													(11.2)	32.3	(3.8)
Changes in operating assets and liabilities:
Trade receivables													(625.9)	(572.4)	(300.6)
Inventories													(276.0)	(192.8)	(122.7)
Prepaid expenses and other current assets													(90.6)	(110.3)	121.5
Accounts payable, accrued and other liabilities													170.3	246.1	(76.5)
Net cash provided by operating activities	$ 562.3	$ 736.5	$ 410.5	$ 491.1	$ 815.7	$ 618.7	$ 376.0	484.3	$ 901.6	$ 860.3	$ 1,638.1	$ 1,479.0	2,200.4	2,294.7	1,042.0
Net cash used in investing activities													(15,577.4)	(99.7)	(5,380.3)
Net cash provided by financing activities													13,681.8	(2,443.7)	4,027.7
Effect of exchange rate changes on cash and cash equivalents													(30.1)	(29.0)	(5.2)
Net increase (decrease) in cash and cash equivalents													274.7	(277.7)	(315.8)
Cash and cash equivalents, beginning of year				322.6				600.3	322.6	600.3	322.6	600.3	322.6	600.3	916.1
Cash and cash equivalents, end of year	597.3				322.6								597.3	322.6	600.3
Noncash Investing and Financing Items [Abstract]
Acquisition of businesses, contingent and deferred consideration obligations at fair value													(1,695.8)	(132.6)	(76.1)
Acquisition of businesses, debt assumed													(3,129.2)	(11.2)	(4,264.7)
Revenue recognition correction
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net (loss) income				98.5	511.7	266.0			46.9		98.6	367.7		879.4
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation and amortization, including impairments of finite-lived intangible assets				407.0		439.3			1,042.0		1,768.4	1,248.1		1,737.6
Amortization and write-off of debt discounts and debt issuance costs				10.5		34.6			103.2		123.7	58.1		70.0
In-process research and development impairments						19.9			12.3		108.1	20.3		21.0
Acquisition accounting adjustment on inventory sold				24.5		12.4			70.5		97.7	21.9		27.3
Acquisition-related contingent consideration				7.1		4.0			18.8		22.6	14.8		(14.1)
Allowances for losses on accounts receivable and inventories				12.2		12.0			26.8		46.4	47.6		81.3
Deferred income taxes				66.1		72.7			16.0		(75.4)	61.3		75.6
Loss (gain) on disposal of assets and businesses						(254.5)					9.2	(254.5)		(253.5)
Additions (reduction) to accrued legal settlements				1.5		(0.9)			6.3		31.9	(48.2)		(44.7)
Payments of accrued legal settlements				(3.0)		(0.2)			(5.9)		(32.1)	(1.2)		(3.2)
Share-based compensation				35.0		20.2			60.9		111.4	60.6		78.2
Tax benefits from share-based compensation				(17.9)		(15.9)			(25.6)		(21.7)	(17.1)		(17.1)
Foreign exchange loss				75.9		55.1			65.6		96.6	62.4		135.1
Loss on extinguishment of debt				20.0	35.9	0.0			20.0		20.0	93.7		129.6
Payment of accreted interest on contingent consideration				(2.2)		(1.3)			(12.1)		(19.8)	(9.5)		(10.7)
Other				(7.2)		9.7			(9.9)		(13.6)	15.8		32.3
Changes in operating assets and liabilities:
Trade receivables				(67.0)		(121.4)			(308.8)		(656.0)	(205.2)		(572.4)
Inventories				(91.0)		(42.1)			(139.3)		(184.9)	(123.4)		(192.8)
Prepaid expenses and other current assets				(45.1)		5.5			(163.5)		(252.0)	34.5		(110.3)
Accounts payable, accrued and other liabilities				(33.8)		103.6			77.4		359.0	31.3		246.1
Net cash provided by operating activities				491.1		618.7			901.6		1,638.1	1,479.0		2,294.7
Net cash used in investing activities				(11,240.5)		756.3			(13,885.7)		(14,041.9)	105.8		(99.7)
Net cash provided by financing activities				12,306.3		(1,082.1)			13,631.6		13,523.2	(1,361.4)		(2,443.7)
Effect of exchange rate changes on cash and cash equivalents				(15.1)		(15.3)			(12.1)		(22.0)	(14.9)		(29.0)
Net increase (decrease) in cash and cash equivalents				1,541.8		277.6			635.4		1,097.4	208.5		(277.7)
Cash and cash equivalents, beginning of year	1,420.0	958.0	1,864.4	322.6	808.8	531.2		600.3	322.6	600.3	322.6	600.3	322.6	600.3
Cash and cash equivalents, end of year		1,420.0	958.0	1,864.4	322.6	808.8	531.2		958.0	531.2	1,420.0	808.8		322.6	600.3
Noncash Investing and Financing Items [Abstract]
Acquisition of businesses, contingent and deferred consideration obligations at fair value				(286.9)		(16.0)			(635.8)		(744.5)	(65.1)		(132.6)
Acquisition of businesses, debt assumed				0.0		(4.5)			(3,123.1)		(3,129.2)	(8.5)		(11.2)
Revenue recognition correction | Previously reported
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net (loss) income				74.5	534.1	276.4			22.9		74.6	378.1		912.2
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation and amortization, including impairments of finite-lived intangible assets				407.0		439.3			1,042.0		1,768.4	1,248.1		1,737.6
Amortization and write-off of debt discounts and debt issuance costs				10.5		34.6			103.2		123.7	58.1		70.0
In-process research and development impairments						19.9			12.3		108.1	20.3		21.0
Acquisition accounting adjustment on inventory sold				24.5		12.4			70.5		97.7	21.9		27.3
Acquisition-related contingent consideration				7.1		4.0			18.8		22.6	14.8		(14.1)
Allowances for losses on accounts receivable and inventories				12.2		12.0			26.8		46.4	47.6		81.3
Deferred income taxes				62.5		74.6			12.4		(79.0)	63.2		81.8
Loss (gain) on disposal of assets and businesses						(254.5)					9.2	(254.5)		(253.5)
Additions (reduction) to accrued legal settlements				1.5		(0.9)			6.3		31.9	(48.2)		(44.7)
Payments of accrued legal settlements				(3.0)		(0.2)			(5.9)		(32.1)	(1.2)		(3.2)
Share-based compensation				35.0		20.2			60.9		111.4	60.6		78.2
Tax benefits from share-based compensation				(17.9)		(15.9)			(25.6)		(21.7)	(17.1)		(17.1)
Foreign exchange loss				75.9		55.1			65.6		96.6	62.4		135.1
Loss on extinguishment of debt				20.0	35.9	0.0			20.0		20.0	93.7		129.6
Payment of accreted interest on contingent consideration				(2.2)		(1.3)			(12.1)		(19.8)	(9.5)		(10.7)
Other				(7.2)		9.7			(9.9)		(13.6)	15.8		32.3
Changes in operating assets and liabilities:
Trade receivables				(67.0)		(121.4)			(308.8)		(656.0)	(205.2)		(572.4)
Inventories				(38.5)		(41.5)			(86.8)		(132.4)	(122.8)		(174.3)
Prepaid expenses and other current assets				(45.1)		5.5			(163.5)		(252.0)	34.5		(110.3)
Accounts payable, accrued and other liabilities				(58.7)		90.7			52.5		334.1	18.4		188.6
Net cash provided by operating activities				491.1		618.7			901.6		1,638.1	1,479.0		2,294.7
Net cash used in investing activities				(11,240.5)		756.3			(13,885.7)		(14,041.9)	105.8		(99.7)
Net cash provided by financing activities				12,306.3		(1,082.1)			13,631.6		13,523.2	(1,361.4)		(2,443.7)
Effect of exchange rate changes on cash and cash equivalents				(15.1)		(15.3)			(12.1)		(22.0)	(14.9)		(29.0)
Net increase (decrease) in cash and cash equivalents				1,541.8		277.6			635.4		1,097.4	208.5		(277.7)
Cash and cash equivalents, beginning of year	1,420.0	958.0	1,864.4	322.6	808.8	531.2		600.3	322.6	600.3	322.6	600.3	322.6	600.3
Cash and cash equivalents, end of year		1,420.0	958.0	1,864.4	322.6	808.8	531.2		958.0	531.2	1,420.0	808.8		322.6	600.3
Noncash Investing and Financing Items [Abstract]
Acquisition of businesses, contingent and deferred consideration obligations at fair value				(286.9)		(16.0)			(674.6)		(783.3)	(65.1)		(93.8)
Acquisition of businesses, debt assumed				0.0		(4.5)			(3,123.1)		(3,129.2)	(8.5)		(11.2)
Revenue recognition correction | Restatement adjustments
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net (loss) income				24.0	(22.4)	(10.4)			24.0		24.0	(10.4)		(32.8)
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation and amortization, including impairments of finite-lived intangible assets				0.0		0.0			0.0		0.0	0.0		0.0
Amortization and write-off of debt discounts and debt issuance costs				0.0		0.0			0.0		0.0	0.0		0.0
In-process research and development impairments						0.0			0.0		0.0	0.0		0.0
Acquisition accounting adjustment on inventory sold				0.0		0.0			0.0		0.0	0.0		0.0
Acquisition-related contingent consideration				0.0		0.0			0.0		0.0	0.0		0.0
Allowances for losses on accounts receivable and inventories				0.0		0.0			0.0		0.0	0.0		0.0
Deferred income taxes				3.6		(1.9)			3.6		3.6	(1.9)		(6.2)
Loss (gain) on disposal of assets and businesses						0.0					0.0	0.0		0.0
Additions (reduction) to accrued legal settlements				0.0		0.0						0.0
Payments of accrued legal settlements				0.0		0.0			0.0		0.0	0.0		0.0
Share-based compensation				0.0		0.0			0.0		0.0	0.0		0.0
Tax benefits from share-based compensation				0.0		0.0			0.0		0.0	0.0		0.0
Foreign exchange loss				0.0		0.0			0.0		0.0	0.0		0.0
Loss on extinguishment of debt				0.0	0.0	0.0			0.0		0.0	0.0		0.0
Payment of accreted interest on contingent consideration				0.0		0.0			0.0		0.0	0.0		0.0
Other				0.0		0.0			0.0		0.0	0.0		0.0
Changes in operating assets and liabilities:
Trade receivables				0.0		0.0			0.0		0.0	0.0		0.0
Inventories				(52.5)		(0.6)			(52.5)		(52.5)	(0.6)		(18.5)
Prepaid expenses and other current assets				0.0		0.0			0.0		0.0	0.0		0.0
Accounts payable, accrued and other liabilities				24.9		12.9			24.9		24.9	12.9		57.5
Net cash provided by operating activities				0.0		0.0			0.0		0.0	0.0		0.0
Net cash used in investing activities				0.0		0.0			0.0		0.0	0.0		0.0
Net cash provided by financing activities				0.0		0.0			0.0		0.0	0.0		0.0
Effect of exchange rate changes on cash and cash equivalents				0.0		0.0			0.0		0.0	0.0		0.0
Net increase (decrease) in cash and cash equivalents				0.0		0.0			0.0		0.0	0.0		0.0
Cash and cash equivalents, beginning of year	$ 0.0	0.0	0.0	0.0	0.0	0.0		$ 0.0	0.0	0.0	0.0	0.0	$ 0.0	0.0
Cash and cash equivalents, end of year		$ 0.0	$ 0.0	0.0	$ 0.0	0.0	$ 0.0		0.0	$ 0.0	0.0	0.0		0.0	$ 0.0
Noncash Investing and Financing Items [Abstract]
Acquisition of businesses, contingent and deferred consideration obligations at fair value				0.0		0.0			38.8		38.8	0.0		(38.8)
Acquisition of businesses, debt assumed				$ 0.0		$ 0.0			$ 0.0		$ 0.0	$ 0.0		$ 0.0