Consolidated Statement of Comprehensive Income (Parenthetical) (Parentheticals) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Statement of Comprehensive Income [Abstract]
Foreign currency translation, net of tax (provision)/benefit	$ 33	$ 11	$ 41	$ (5)
Current year actuarial gain (loss), net of tax (provision)/benefit	2	91	(14)	83
Amortization of actuarial (gain) loss, net of tax (provision)/benefit	(67)	(61)	(201)	(181)
Current year prior service credit (cost), net of tax (provision)/benefit	0	(3)	0	(1)
Amortization of prior service (credit) cost, net of tax (provision)/benefit	5	4	14	12
Amortization of transition (asset) obligation, net of tax (provision)/benefit	(1)	0	(1)	0
Derivative financial instruments, Gains (losses) deferred, net of tax (provision)/benefit	(15)	5	(2)	21
Derivative financial instruments, (Gains) losses reclassified to earnings, net of tax (provision)/benefit	(5)	(5)	(24)	(6)
Available-for-sale securities, Gains (losses) deferred, net of tax (provision)/benefit	(6)	(8)	(8)	(13)
Available-for-sale securities, (Gains) losses reclassified to earnings, net of tax (provision)/benefit	$ 0	$ 0	$ 0	$ 0