Quarterly Results of Operations (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 28, 2013	Sep. 28, 2013	Jun. 29, 2013	Mar. 30, 2013	Dec. 29, 2012	Sep. 29, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Quarterly Financial Information Disclosure [Abstract]
Revenues	$ 7,414,261	$ 7,077,528	$ 7,096,675	$ 7,559,054	$ 7,039,999	$ 6,702,251	$ 6,838,426	$ 7,126,096	$ 29,147,518	$ 27,706,772	$ 27,178,764
Costs and expenses	6,855,512	6,574,650	6,523,255	6,874,363	6,514,859	6,208,015	6,291,900	6,526,747	26,827,780	25,541,521	25,043,839
Net earnings	$ 421,952	$ 359,867	$ 400,882	$ 471,253	$ 392,787	$ 368,426	$ 381,631	$ 409,411	$ 1,653,954	$ 1,552,255	$ 1,491,966
Basic and diluted earnings per share (in dollars per share)	$ 0.54	$ 0.46	$ 0.51	$ 0.61	$ 0.50	$ 0.47	$ 0.49	$ 0.52	$ 2.12	$ 1.98	$ 1.90