Debt (Meda Borrowings) (Narrative) (Details) SEK in Millions, $ in Millions			3 Months Ended	9 Months Ended
		Nov. 03, 2016 USD ($)	Sep. 30, 2016 SEK	Sep. 30, 2016 USD ($)	Sep. 30, 2016 USD ($)		Dec. 31, 2015 USD ($)
Debt Instrument [Line Items]
Current portion of long-term debt and other long-term obligations					$ 4,434.6		$ 1,077.0
Current portion of long-term debt					$ 4,278.8		998.7
Commercial Paper
Debt Instrument [Line Items]
Long-term debt | SEK			SEK 4,000
Bank Loan Obligations | Meda Bank Loan (25 Billion Kr)
Debt Instrument [Line Items]
Current portion of long-term debt and other long-term obligations | SEK			SEK 16,700
Number of foreign banks			9		9
Line of credit, remaining borrowing capacity			SEK 7,900		$ 925.1
Current portion of long-term debt	[1]				1,942.6		0.0
Days after end of each consecutive three month period			60 days
Days after end of each financial year			120 days
Bank Loan Obligations | Meda Bank Loan (2 Billion Kr)
Debt Instrument [Line Items]
Long-term debt | SEK			SEK 2,000
Current portion of long-term debt	[2]				233.3		0.0
Debt instrument, covenants, change of control, agreement period			30 days
Days after end of each consecutive three month period			60 days
Days after end of each financial year			120 days
Medium-term Notes | Meda Medium Term Notes
Debt Instrument [Line Items]
Long-term debt			SEK 1,350		$ 157.5	[3]	$ 0.0	[3]
Medium-term Notes | Meda Medium Term Notes | Subsequent Event
Debt Instrument [Line Items]
Repayments of debt		$ 2.0
Maximum | Bank Loan Obligations | Meda Bank Loan (25 Billion Kr)
Debt Instrument [Line Items]
Current portion of long-term debt and other long-term obligations | SEK			25,000
Maximum | Medium-term Notes | Meda Medium Term Notes
Debt Instrument [Line Items]
Long-term debt | SEK			SEK 7,000
Meda
Debt Instrument [Line Items]
Repayments of debt				$ 567.0

[1] Approximately 16.7kr billion of borrowings under a 25kr billion facility with nine Swedish and foreign banks that matures on August 30, 2017, and accordingly is included in current portion of long-term debt and other long-term obligations in the Condensed Consolidated Balance Sheets at September 30, 2016.

[2] Represents a bank loan of 2kr billion with AB Svensk Exportkredit (publ), as lender (“Svensk Exportkredit”) which is callable by the lender as a result of the completion of the Offer, and accordingly is included in current portion of long-term debt and other long-term obligations in the Condensed Consolidated Balance Sheets at September 30, 2016.

[3] Swedish medium term notes (“MTN”) program with an upper limit of 7kr billion. Of the total amount outstanding of 1.35kr billion, 600kr million matures on April 5, 2018 and 750kr million matures on May 21, 2019.