Consolidated Statements of Changes in Equity - USD ($) $ in Millions	Total		Common Stock	Common Stock in Treasury	Additional Contributed Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Parent	Noncontrolling Interest
Beginning of year at Dec. 31, 2013			$ 683	$ (7,914)	$ 5,818	$ 11,852	$ (1,976)		$ 23
Beginning of year at Dec. 31, 2013			683,000,000
Net income	$ 2,497					2,497
Purchases of common stock	$ (600)			$ (550)
Purchases of common stock, shares	8,000,000			8,000,000
Other comprehensive income (loss)	$ (1,674)						(1,674)
Change in noncontrolling interests									13
Dividends declared on common stock						(1,116)
Stock issued under employee benefit plans and other				$ 471	35
Stock issued under employee benefit plans and other, shares				(7,000,000)
Stock issued under employee benefit plans						(6)
End of year at Dec. 31, 2014	8,156		$ 683	$ (7,993)	5,853	13,227	(3,650)	$ 8,120	36
End of year at Dec. 31, 2014			683,000,000
Beginning of year at Dec. 31, 2013				140,000,000
End of year at Dec. 31, 2014				141,000,000
Net income	$ 968	[1]				968
Purchases of common stock, shares	0
Other comprehensive income (loss)	$ 3,524						3,524
Change in noncontrolling interests									(17)
Dividends declared on common stock						(695)
Stock issued under employee benefit plans and other				$ 347	49
Stock issued under employee benefit plans and other, shares				(5,000,000)
Stock issued under employee benefit plans						(90)
Distribution of Baxalta						(3,727)	350
End of year at Dec. 31, 2015	$ 8,865		$ 683	$ (7,646)	5,902	9,683	224	8,846	19
End of year at Dec. 31, 2015	683,494,944		683,000,000
End of year at Dec. 31, 2015	135,839,938			136,000,000
Net income	$ 4,965	[2]				4,965
Purchases of common stock	$ (287)			$ (902)
Purchases of common stock, shares	6,300,000			18,000,000
Other comprehensive income (loss)	$ (4,780)						(4,780)
Change in noncontrolling interests									(29)
Dividends declared on common stock						(276)
Stock issued under employee benefit plans and other				$ 553	43
Stock issued under employee benefit plans and other, shares				(10,000,000)
Other					13
Stock issued under employee benefit plans						(190)
Distribution of Baxalta						18
End of year at Dec. 31, 2016	$ 8,280		$ 683	$ (7,995)	$ 5,958	$ 14,200	$ (4,556)	$ 8,290	$ (10)
End of year at Dec. 31, 2016	683,494,944		683,000,000
End of year at Dec. 31, 2016	143,890,064			144,000,000

[1] The first quarter of 2015 included charges of $29 million related to business optimization, Gambro integration costs, and separation-related costs. The second quarter of 2015 included benefits of $5 million related to business optimization, Gambro integration costs, separation-related costs, and tax and legal reserves. The third quarter of 2015 included charges of $191 million related to business optimization, Gambro integration costs, separation-related costs, a loss on debt extinguishment, and product-related items. The fourth quarter of 2015 included $17 million related to business optimization, Gambro integration costs, product-related items, separation-related costs, and reserve items and adjustments.

[2] The first quarter of 2016 included benefits of $3.1 billion related to business optimization, separation-related costs, Retained Stake transactions, a loss on debt extinguishment, and product-related items. The second quarter of 2016 included benefits of $1.0 billion related to business optimization, separation-related costs, Retained Stake transactions, and asset impairment. The third quarter of 2016 included charges of $155 million related to business optimization, separation-related costs, a loss on debt extinguishment, and a tax matter. The fourth quarter of 2016 included charges of $47 million related to business optimization, separation-related costs, and reserve items and adjustments.