Other Comprehensive Earnings/Losses (Changes in Each Component of Accumulated Other Comprehensive Losses) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Accumulated Other Comprehensive Income [Roll Forward]
Balances at beginning of year	$ (2,040)	$ (1,887)	$ (1,484)
Other comprehensive (losses) earnings before reclassifications	817	(512)	(885)
Deferred income taxes	(350)	209	336
Other comprehensive (losses) earnings before reclassifications, net of deferred income taxes	467	(303)	(549)
Amounts reclassified to net earnings	317	244	237
Deferred income taxes	(122)	(94)	(91)
Amounts reclassified to net earnings, net of deferred income taxes	195	150	146
Other comprehensive losses, net of deferred income taxes	662	(153)	(403)
Balances at end of year	(1,378)	(2,040)	(1,887)
SABMiller Plc [Member]
Accumulated Other Comprehensive Income [Roll Forward]
Balances at beginning of year	372	173	323
Other comprehensive (losses) earnings before reclassifications	(740)	303	(249)
Deferred income taxes	259	(106)	87
Other comprehensive (losses) earnings before reclassifications, net of deferred income taxes	(481)	197	(162)
Amounts reclassified to net earnings	6	3	18
Deferred income taxes	(2)	(1)	(6)
Amounts reclassified to net earnings, net of deferred income taxes	4	2	12
Other comprehensive losses, net of deferred income taxes	(477)	199	(150)
Balances at end of year	(105)	372	173
Accumulated Translation Adjustment [Member]
Accumulated Other Comprehensive Income [Roll Forward]
Balances at beginning of year	2	2	4
Other comprehensive (losses) earnings before reclassifications	(2)	0	(2)
Deferred income taxes	0	0	0
Other comprehensive (losses) earnings before reclassifications, net of deferred income taxes	(2)	0	(2)
Amounts reclassified to net earnings	0	0	0
Deferred income taxes	0	0	0
Amounts reclassified to net earnings, net of deferred income taxes	0	0	0
Other comprehensive losses, net of deferred income taxes	(2)	0	(2)
Balances at end of year	0	2	2
Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Other Comprehensive Income [Roll Forward]
Balances at beginning of year	(2,414)	(2,062)	(1,811)
Other comprehensive (losses) earnings before reclassifications	1,559	(815)	(634)
Deferred income taxes	(609)	315	249
Other comprehensive (losses) earnings before reclassifications, net of deferred income taxes	950	(500)	(385)
Amounts reclassified to net earnings	311	241	219
Deferred income taxes	(120)	(93)	(85)
Amounts reclassified to net earnings, net of deferred income taxes	191	148	134
Other comprehensive losses, net of deferred income taxes	1,141	(352)	(251)
Balances at end of year	$ (1,273)	$ (2,414)	$ (2,062)