Other Comprehensive Income (Details) (USD $)			3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended
	Jun. 30, 2013	Dec. 31, 2012	Jun. 30, 2013 Cumulative Foreign Currency Translation Adjustments	Jun. 30, 2012 Cumulative Foreign Currency Translation Adjustments	Jun. 30, 2013 Cumulative Foreign Currency Translation Adjustments	Jun. 30, 2012 Cumulative Foreign Currency Translation Adjustments	Jun. 30, 2013 Net Actuarial Losses and Prior Service Costs and Credits	Jun. 30, 2012 Net Actuarial Losses and Prior Service Costs and Credits	Jun. 30, 2013 Net Actuarial Losses and Prior Service Costs and Credits	Jun. 30, 2012 Net Actuarial Losses and Prior Service Costs and Credits	Jun. 30, 2013 Cumulative Unrealized Gains on Marketable Equity Securities	Jun. 30, 2012 Cumulative Unrealized Gains on Marketable Equity Securities	Jun. 30, 2013 Cumulative Unrealized Gains on Marketable Equity Securities	Jun. 30, 2012 Cumulative Unrealized Gains on Marketable Equity Securities	Jun. 30, 2013 Cumulative Gains on Derivative Instruments Designated as Cash Flow Hedges	Jun. 30, 2012 Cumulative Gains on Derivative Instruments Designated as Cash Flow Hedges	Jun. 30, 2013 Cumulative Gains on Derivative Instruments Designated as Cash Flow Hedges	Jun. 30, 2012 Cumulative Gains on Derivative Instruments Designated as Cash Flow Hedges
Other comprehensive income from continuing operations, net of income taxes
Balance at the beginning of the period	$ (3,226,425,000)	$ (3,593,678,000)	$ (527,000,000)	$ 358,000,000	$ (79,000,000)	$ (73,000,000)	$ (2,436,000,000)	$ (2,626,000,000)	$ (3,596,000,000)	$ (2,731,000,000)	$ 32,000,000	$ 15,000,000	$ 31,000,000	$ 38,000,000	$ 38,000,000	$ 117,000,000	$ 50,000,000	$ 167,000,000
Separation of AbbVie					(208,000,000)	(8,000,000)			1,351,000,000	66,000,000				(26,000,000)			8,000,000	(5,000,000)
Other comprehensive income before reclassifications			(360,000,000)	(1,090,000,000)	(600,000,000)	(651,000,000)			(219,000,000)		7,000,000	5,000,000	14,000,000	5,000,000	12,000,000	29,000,000	(5,000,000)	(3,000,000)
Amounts reclassified from accumulated other comprehensive income				(36,000,000)		(36,000,000)	28,000,000	40,000,000	56,000,000	79,000,000	(5,000,000)	(4,000,000)	(11,000,000)	(1,000,000)	(15,000,000)	(26,000,000)	(18,000,000)	(39,000,000)
Net current period comprehensive income from continuing operations			(360,000,000)	(1,126,000,000)	(600,000,000)	(687,000,000)	28,000,000	40,000,000	(163,000,000)	79,000,000	2,000,000	1,000,000	3,000,000	4,000,000	(3,000,000)	3,000,000	(23,000,000)	(42,000,000)
Balance at the end of the period	$ (3,226,425,000)	$ (3,593,678,000)	$ (887,000,000)	$ (768,000,000)	$ (887,000,000)	$ (768,000,000)	$ (2,408,000,000)	$ (2,586,000,000)	$ (2,408,000,000)	$ (2,586,000,000)	$ 34,000,000	$ 16,000,000	$ 34,000,000	$ 16,000,000	$ 35,000,000	$ 120,000,000	$ 35,000,000	$ 120,000,000