Changes in Equity (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2012	Mar. 31, 2011
Stockholders Equity Note [Line Items]
Beginning Balance	$ 5,255,903	$ 5,214,593	$ 5,488,336	$ 4,459,400
Net income	312,689	281,648	853,190	762,496
Other comprehensive income (loss):
Foreign currency translation (net of tax of $3,983 and $9,584 for the 3 months ended March 31, 2012 and 2011 and net of tax of $15,583 and $27,071 for the 9 months ended March 31, 2012 and 2011)	119,941	123,000	(230,326)	418,376
Retirement benefits plan activity (net of tax of $11,244 and $11,516 for the 3 months ended March 31, 2012 and 2011 and net of tax of $33,768 and $33,805 for the 9 months ended March 31, 2012 and 2011)	19,096	19,659	56,392	57,721
Realized loss (net of tax of $25 for the 3 months ended March 31, 2012 and 2011 and net of tax of $75 and $93 for the 9 months ended March 31, 2012 and 2011)	51	52	153	162
Total comprehensive income	451,777	424,359	679,409	1,238,755
Dividends paid	(59,575)	(51,999)	(178,606)	(142,906)
Stock incentive plan activity	28,912	23,011	68,744	84,715
Acquisition activity	(70,549)		(139,443)
Shares purchased at cost	(20,000)	(26,235)	(331,972)	(56,235)
Ending Balance	5,586,468	5,583,729	5,586,468	5,583,729
Stockholders' Equity
Stockholders Equity Note [Line Items]
Beginning Balance	5,158,126	5,113,261	5,383,854	4,367,965
Net income	312,074	279,589	849,858	756,940
Other comprehensive income (loss):
Foreign currency translation (net of tax of $3,983 and $9,584 for the 3 months ended March 31, 2012 and 2011 and net of tax of $15,583 and $27,071 for the 9 months ended March 31, 2012 and 2011)	147,042	124,570	(204,717)	413,271
Retirement benefits plan activity (net of tax of $11,244 and $11,516 for the 3 months ended March 31, 2012 and 2011 and net of tax of $33,768 and $33,805 for the 9 months ended March 31, 2012 and 2011)	19,096	19,659	56,392	57,721
Realized loss (net of tax of $25 for the 3 months ended March 31, 2012 and 2011 and net of tax of $75 and $93 for the 9 months ended March 31, 2012 and 2011)	51	52	153	162
Total comprehensive income	478,263	423,870	701,686	1,228,094
Dividends paid	(59,015)	(51,999)	(171,106)	(142,631)
Stock incentive plan activity	28,912	23,011	68,744	84,715
Acquisition activity	(8,694)		(73,614)
Shares purchased at cost	(20,000)	(26,235)	(331,972)	(56,235)
Ending Balance	5,577,592	5,481,908	5,577,592	5,481,908
Noncontrolling Interests
Stockholders Equity Note [Line Items]
Beginning Balance	97,777	101,332	104,482	91,435
Net income	615	2,059	3,332	5,556
Other comprehensive income (loss):
Foreign currency translation (net of tax of $3,983 and $9,584 for the 3 months ended March 31, 2012 and 2011 and net of tax of $15,583 and $27,071 for the 9 months ended March 31, 2012 and 2011)	(27,101)	(1,570)	(25,609)	5,105
Total comprehensive income	(26,486)	489	(22,277)	10,661
Dividends paid	(560)		(7,500)	(275)
Acquisition activity	(61,855)		(65,829)
Ending Balance	$ 8,876	$ 101,821	$ 8,876	$ 101,821