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	336		325		11
Shares issued - employee benefit plans (in shares)		0.3
Shares issued - employee benefit plans	14	14
Shares issued - employee compensation (in shares)		2.7
Shares issued - employee compensation	(85)	(85)
Shares purchased (in shares)		(7.2)
Shares purchased	(600)		(600)
Tax benefit - employee benefit plans	44	44
Share-based compensation expense	102	102
Dividends to shareholders	(53)		(53)
Net change in fair value of investments	1			1
Net change in fair value of derivatives	9			9
Net foreign currency translation adjustments	16			18	(2)
Net post-retirement benefit obligation	26			26
Purchase of subsidiary shares from non-controlling interests	1				1
Dividends paid to non-controlling interests on subsidiary common stock	0				0
Ending Balance at Mar. 31, 2014	$ 8,006	$ 4,863	$ 5,403	$ (2,320)	$ 60
Ending Balance (in shares) at Mar. 31, 2014	296.5	296.5