Condensed Consolidated Statement of Shareholders' Equity (USD $) In Millions, unless otherwise specified	Total	Ordinary Shares and Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss, Net of Tax [Member]	Non-controlling Interests [Member]
Beginning Balance at Dec. 31, 2013	$ 8,195	$ 4,788	$ 5,731	$ (2,374)	$ 50
Beginning Balance (in shares) at Dec. 31, 2013	300.7	300.7
Increase (Decrease) in Shareholders' Equity
Net income	649	0	629	0	20
Shares issued - employee benefit plans (in shares)		0.3
Shares issued - employee benefit plans	13	13	0	0	0
Shares issued - employee compensation (in shares)		4.1
Shares issued - employee compensation	(108)	(108)	0	0	0
Shares purchased (in shares)		(14.6)
Shares purchased	(1,250)	0	(1,250)	0	0
Tax benefit - employee benefit plans	68	68	0	0	0
Share-based compensation expense	175	175	0	0	0
Dividends to shareholders	(128)	0	(128)	0	0
Net change in fair value of investments	(1)	0	0	(1)	0
Net change in fair value of derivatives	21	0	0	21	0
Net foreign currency translation adjustments	90	0	0	92	(2)
Net post-retirement benefit obligation	44	0	0	44	0
Purchase of subsidiary shares from non-controlling interests	1	0	0	0	1
Dividends paid to non-controlling interests on subsidiary common stock	(10)	0	0	0	(10)
Ending Balance at Jun. 30, 2014	$ 7,759	$ 4,936	$ 4,982	$ (2,218)	$ 59
Ending Balance (in shares) at Jun. 30, 2014	290.5	290.5